CN221663272U

CN221663272U - Device for dewatering pulp

Info

Publication number: CN221663272U
Application number: CN202420447493.2U
Authority: CN
Inventors: 平根法
Original assignee: Guizhou Jinxinxin New Material Technology Co ltd
Current assignee: Guizhou Jinxinxin New Material Technology Co ltd
Priority date: 2024-03-08
Filing date: 2024-03-08
Publication date: 2024-09-06
Anticipated expiration: 2034-03-08

Abstract

The utility model discloses a device for pulp dewatering, comprising a cyclone separator and a continuous dewatering machine, wherein a feed hopper is installed at the inlet of the continuous dewatering machine; the cyclone separator is installed above the feed hopper, and a buffer tank A is connected to the bottom outlet thereof, an electric control valve A is installed at the outlet of the buffer tank A, a buffer tank B is installed at the outlet of the electric control valve A, and an electric control valve B is installed at the outlet of the buffer tank B, and a material level sensor is installed on the buffer tank B, and the material level sensor is used to feedback a signal to a controller, and feedback controls the electric control valve A and the electric control valve B. The utility model optimizes the design of the existing pulp dewatering equipment, so that the produced pulp can be directly pumped to the equipment for dewatering without filtering, thereby simplifying the process flow and saving manpower, material resources and time.

Description

Device for dewatering pulp

Technical Field

The utility model relates to the technical field of dewatering equipment, in particular to equipment for dewatering paper pulp.

Background

The gray paperboard is mainly used in the packaging field, has low requirements for raw materials, can adopt recycled paper and the like as raw materials, needs to be mixed with a large amount of water to form paper pulp before the recycled paper is made into paper pulp, then filters the paper pulp, sends the paper pulp into a dehydration device to be dehydrated, finally enters a paper machine to be molded, needs multiple times of transportation from the paper pulp to the dehydration machine, and also needs to be added with a filtering step and the like, so that the labor and the material resources are consumed relatively, and the time is consumed relatively more.

Disclosure of utility model

The technical problem to be solved by the utility model is to provide a device for dewatering paper pulp, so as to solve the technical problem in the background art.

In order to solve the technical problems, the technical scheme of the utility model is as follows:

An apparatus for dewatering pulp comprising a cyclone separator and a continuous dewatering machine, the inlet of said continuous dewatering machine being provided with a feed hopper; the cyclone separator is arranged above the feed hopper, a buffer tank A is connected to the outlet of the bottom of the cyclone separator, an electric control valve A is arranged at the outlet of the buffer tank A, a buffer tank B is arranged at the outlet of the electric control valve A, an electric control valve B is arranged at the outlet of the buffer tank B, a material level sensor is arranged on the buffer tank B and is used for feeding back signals to a controller, and the electric control valve A and the electric control valve B are controlled in a feedback mode.

Further, the electric control valve A and the electric control valve B are electric butterfly valves.

Further, the continuous dehydrator adopts a screw dehydration device or a twin-roll extrusion dehydration device.

Further, the screw dehydration equipment comprises a base, a shaft seat, a screw, a dehydration shell, a feed hopper, a gearbox and a motor; the base is sequentially provided with a shaft seat, a dewatering shell, a feed hopper and a gearbox, the feed hopper is welded on the base, the dewatering shell is connected with an outlet on the side wall of the feed hopper, a screw rod is concentrically arranged inside the dewatering shell and the feed hopper in a penetrating mode, the shaft seat and the gearbox are respectively connected at two ends of the screw rod, the gearbox is driven by a motor, a discharge hole is formed in the bottom of one end, close to the shaft seat, of the dewatering shell, a plurality of drain holes are uniformly formed in the peripheral wall of the dewatering shell, and a guide cover is sleeved on the periphery of the area where the drain holes of the dewatering shell are located.

Furthermore, the air guide sleeve consists of a cylinder part and a converging groove at the bottom, two walls of the converging groove are tangentially connected with the cylinder part, and a drain pipe is connected at the bottom of the converging groove.

Furthermore, the peripheral wall of the buffer tank B is welded with a clamping ring, two sides of the clamping ring are provided with brackets, and the inner sides of the brackets are welded with the base.

The utility model has the advantages that:

The utility model makes an optimal design for the existing pulp dewatering equipment, so that the produced pulp can be directly conveyed to the equipment for dewatering in a pumping mode under the condition of no filtering, thereby simplifying the process flow and saving manpower, material resources and time.

Specifically, pulp mixed with a large amount of water is pumped to a cyclone separator, the cyclone separator can separate a large amount of water, high-concentration pulp sequentially enters a buffer tank A and a buffer tank B from the bottom, when a material level sensor detects that the material level in the buffer tank B reaches a certain height, a signal is fed back to a controller, and the controller firstly closes an electric control valve A and then opens the electric control valve B to be discharged to a feed hopper.

Drawings

FIG. 1 is a schematic perspective view of the present utility model;

FIG. 2 is a front view of the present utility model;

fig. 3 is a schematic view of a dome.

In the figure, a 1-continuous dehydrator, a 11-base, a 12-shaft seat, a 13-screw, a 14-dehydration shell, a 141-drain hole, a 142-discharge hole, a 15-feed hopper, a 16-gearbox, a 17-motor, a 18-guide cover, a 181-cylinder part, a 182-sink, a 183-drain pipe, a 2-cyclone separator, a 3-cache tank A, a 31-electric control valve A, a 4-cache tank B, a 41-electric control valve A, a 42-clamping ring, a 5-material level sensor and a 6-bracket.

Detailed Description

The following describes the embodiments of the present utility model further with reference to the drawings. The description of these embodiments is provided to assist understanding of the present utility model, but is not intended to limit the present utility model. In addition, the technical features of the embodiments of the present utility model described below may be combined with each other as long as they do not collide with each other.

As shown in the figure:

An apparatus for dewatering pulp comprising a cyclone separator 2 and a continuous dewatering machine 1, the inlet of said continuous dewatering machine 1 being provided with a feed hopper 15; the cyclone separator 2 is arranged above the feed hopper 15, a buffer tank A3 is connected to the outlet of the bottom of the cyclone separator 2, an electric control valve A4131 is arranged at the outlet of the buffer tank A3, a buffer tank B4 is arranged at the outlet of the electric control valve A4131, an electric control valve B is arranged at the outlet of the buffer tank B4, a material level sensor 5 is arranged on the buffer tank B4, and the material level sensor 5 is used for feeding back signals to a controller and feeding back the electric control valve A4131 and the electric control valve B.

Working principle: the utility model makes an optimal design for the existing pulp dewatering equipment, so that the produced pulp can be directly conveyed to the equipment in a pumping mode for dewatering under the condition of no filtration, and particularly, the pulp mixed with a large amount of water is pumped to the cyclone separator 2.

The cyclone separator 2 is also called a hydrocyclone, and is a device for separating solid particles from suspended matters by utilizing the centrifugal sedimentation principle, the suspended matters enter a cylinder along the tangential direction through an inlet pipe, and downwards spirally move, the solid particles are thrown to the wall under the action of inertial centrifugal force, then fall to an outlet at the bottom of a cone along with the descending cyclone, are discharged from the bottom, and clear liquid or liquid containing fine particles becomes an ascending inner cyclone and is discharged from a central pipe at the top.

The cyclone separator 2 can separate a large amount of water, the high-concentration pulp sequentially enters the buffer tank A3 and the buffer tank B4 from the bottom, when the level sensor 5 detects that the level in the buffer tank B4 reaches a certain height, a signal is fed back to the controller (the controller only needs to adopt a simple PLC controller), the controller firstly closes the electric control valve A4131 and then opens the electric control valve B, the high-concentration pulp in the buffer tank B4 can enter the continuous dehydrator 1 to carry out deep dehydration, and the high-concentration pulp separated by the cyclone separator 2 can be temporarily stored in the buffer tank A3 (the buffer tank A3 can be properly contracted and the buffer tank B4 can be properly enlarged).

As an optimization scheme, the electric control valve A4131 and the electric control valve B are electric butterfly valves, the opening section of the butterfly valves is large, and the opening mode is turnover and cannot be blocked.

Since the cyclone separator 2 is continuously used for preliminary dehydration concentration in the utility model, the dehydrator needs a continuous dehydration structure, and can not work at intervals such as plate-frame filter pressing, and the continuous dehydrator 1 can adopt a screw 13 dehydration device or a twin-roll extrusion dehydration device.

In the embodiment of the utility model, screw dehydration equipment is adopted, and comprises a base 11, a shaft seat 12, a screw 13, a dehydration shell 14, a feed hopper 15, a gearbox 16 and a motor 17; the base 11 is sequentially provided with a shaft seat 12, a dewatering shell 14, a feed hopper 15 and a gearbox 16, the feed hopper 15 is welded on the base 11, the dewatering shell 14 is connected with an outlet on the side wall of the feed hopper 15, a screw 13 is concentrically arranged inside the dewatering shell 14 and the feed hopper 15 in a penetrating mode, the shaft seat 12 and the gearbox 16 are respectively connected to two ends of the screw, the gearbox 16 is in transmission with a motor 17, a discharge hole 142 is formed in the bottom of one end, close to the shaft seat 12, of the dewatering shell 14, a plurality of drain holes 141 are uniformly formed in the peripheral wall of the dewatering shell 14, and a guide cover 18 is sleeved on the periphery of the area where the drain holes 141 of the dewatering shell 14 are located.

In order to collect and discharge the water, the cover 18 is composed of a cylindrical portion 181 and a converging groove 182 at the bottom, both walls of the converging groove 182 are connected to the cylindrical portion 181 in a tangential manner, and a drain pipe 183 is connected to the bottom of the converging groove 182.

As an optimization scheme, a clamping ring 42 is welded on the peripheral wall of the buffer tank B4, supports 6 are arranged on two sides of the clamping ring 42, and the inner sides of the supports 6 are welded with the base 11.

The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings, but the present utility model is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the utility model, and yet fall within the scope of the utility model.

Claims

1. An apparatus for dewatering pulp, characterized in that: comprises a cyclone separator and a continuous dehydrator, wherein a feed hopper is arranged at the inlet of the continuous dehydrator; the cyclone separator is arranged above the feed hopper, a buffer tank A is connected to the outlet of the bottom of the cyclone separator, an electric control valve A is arranged at the outlet of the buffer tank A, a buffer tank B is arranged at the outlet of the electric control valve A, an electric control valve B is arranged at the outlet of the buffer tank B, a material level sensor is arranged on the buffer tank B and is used for feeding back signals to a controller, and the electric control valve A and the electric control valve B are controlled in a feedback mode.

2. The apparatus for dewatering pulp according to claim 1, characterized in that: and the electric control valve A and the electric control valve B are electric butterfly valves.

3. An apparatus for dewatering pulp as claimed in claim 2, characterized in that: the continuous dehydrator adopts screw dehydration equipment or twin-roll extrusion dehydration equipment.

4. A device for dewatering pulp as claimed in claim 3, characterized in that: the screw dehydration equipment comprises a base, a shaft seat, a screw, a dehydration shell, a feed hopper, a gearbox and a motor; the base is sequentially provided with a shaft seat, a dewatering shell, a feed hopper and a gearbox, the feed hopper is welded on the base, the dewatering shell is connected with an outlet on the side wall of the feed hopper, a screw rod is concentrically arranged inside the dewatering shell and the feed hopper in a penetrating mode, the shaft seat and the gearbox are respectively connected at two ends of the screw rod, the gearbox is driven by a motor, a discharge hole is formed in the bottom of one end, close to the shaft seat, of the dewatering shell, a plurality of drain holes are uniformly formed in the peripheral wall of the dewatering shell, and a guide cover is sleeved on the periphery of the area where the drain holes of the dewatering shell are located.

5. The apparatus for dewatering pulp according to claim 4, wherein: the air guide sleeve consists of a cylinder part and a converging groove at the bottom, two walls of the converging groove are tangentially connected with the cylinder part, and a drain pipe is connected at the bottom of the converging groove.

6. The apparatus for dewatering pulp according to claim 4, wherein: the peripheral wall welding of buffer tank B has the snap ring, the snap ring both sides set up the support, and the support inboard welds with the base.