CN204684792U - For rapidly and efficiently reducing the device of ammonium chloride content in ethenylamidine hydrochloride mother liquor - Google Patents

Abstract

The utility model discloses a device for quickly and efficiently reducing the content of ammonium chloride in acetamidine hydrochloride mother liquor, which comprises a tank body. The inside of the tank body is provided with a plurality of sets of overflow filter plates alternately from top to bottom, and the upper part of the tank body is provided with There is a water inlet, the lower part is provided with a water outlet, and the bottom is provided with a silt discharge port; the water outlet is arranged on the side wall of the tank body and is located on the other side of the opening of the bottom overflow filter plate. The utility model uses potential difference overflow, multi-stage sedimentation and filtration to quickly and efficiently separate the fine ammonium chloride particles precipitated from the acetamidine hydrochloride low-temperature mother liquor, and effectively reduces the content of ammonium chloride in the acetamidine hydrochloride product , does not require a power source, saves energy, and is fast and efficient during separation, which can shorten the production cycle of the product, reduce the corresponding capital investment, and produce greater social and economic benefits.

Description

Device for quickly and efficiently reducing ammonium chloride content in acetamidine hydrochloride mother liquor

technical field

The utility model relates to the field of chemical industry, in particular to a device capable of quickly and efficiently reducing the ammonium chloride content in the acetamidine hydrochloride mother liquor in the production of acetamidine hydrochloride.

Background technique

In the existing production of acetamidine hydrochloride, due to the certain solubility of ammonium chloride in the ammoniated mother liquor, insufficient removal of the dissolved ammonium chloride in the ammoniated mother liquor will cause the ammonium chloride content of the concentrated mother liquor to exceed the industry requirement by 0.5% standard. Utilizing the characteristic that the solubility of ammonium chloride changes greatly with temperature, the ammonium chloride in the mother liquor can be fully separated, but since the ammonium chloride precipitated by cooling is suspended in the mother liquor in the form of very fine particles, it is difficult to use general sedimentation or filtration methods. Processing requires a longer time for sedimentation or more labor for repeated centrifugation, and also consumes more frozen brine.

Invention content

The purpose of this utility model is to address the above problems, to provide a device for quickly and efficiently reducing the ammonium chloride content in the acetamidine hydrochloride mother liquor, and to reduce time and labor on the premise of ensuring that the ammonium chloride content of the concentrated product meets the industry standard. etc. input.

In order to solve the above technical problems, the technical solution adopted by the utility model is: a device for quickly and efficiently reducing the content of ammonium chloride in the mother liquor of acetamidine hydrochloride, including a tank body, which is staggered from top to bottom. A group of overflow filter plates, the upper part of the tank body is provided with a water inlet, the lower part is provided with a water outlet, and the bottom is provided with a silt discharge port; the water outlet is arranged on the side wall of the tank body and is located at the bottom of the overflow filter plate the other side of the opening.

Since the water outlet is located on the other side of the opening of the bottom overflow filter plate, the material overflowing from the bottom overflow filter plate can be directly discharged from the water outlet as little as possible; The baffle is vertically arranged in the tank body to separate the water outlet from the silt discharge port. Prevent the solids entrained in the overflowing material from being discharged directly from the water outlet.

Further, the upper end of the baffle is higher than the position of the water outlet, so that the solid matter in the overflowing material can have enough time and space to settle, and the liquid enters the side of the water outlet after exceeding the highest point of the baffle .

There is also a jacket outside the tank, which can be fed with frozen brine for cooling.

A silt discharge valve is installed below the silt discharge port, and when enough sediment is collected above the silt discharge port, it is discharged through the silt discharge port.

The utility model uses potential difference overflow, multi-stage sedimentation and filtration to quickly and efficiently separate the fine ammonium chloride particles precipitated from the acetamidine hydrochloride low-temperature mother liquor, and effectively reduces the ammonium chloride content in the acetamidine hydrochloride product , no power source is needed, saving energy. Moreover, due to the use of multi-stage sedimentation and filtration, the fine ammonium chloride particles in the ammoniated mother liquor are separated quickly and efficiently, which shortens the product production cycle and reduces the corresponding capital investment, which can generate greater social and economic benefits.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Detailed ways

The utility model will be further described below in conjunction with the examples, but the protection scope of the utility model is not limited to the range expressed in the examples.

As shown in Figure 1, a kind of device for quickly and efficiently reducing ammonium chloride content in acetamidine hydrochloride mother liquor comprises tank body 1, and inside tank body 1 is provided with multiple groups of overflow filter plates 2 alternately from top to bottom, tank body 1 The upper part of the body 1 is provided with a water inlet 3, the lower part is provided with a water outlet 4, and the bottom is provided with a silt discharge port 5; the water outlet 4 is arranged on the side wall of the tank body 1, and is located at the opening of the bottom overflow filter plate the other side of the

The tank body 1 is also provided with a baffle plate 6 vertically arranged in the tank body 1 to separate the water outlet 4 from the silt discharge port 5 .

The upper end of the baffle plate 6 is higher than the position of the water outlet 4 .

A jacket 7 is also provided outside the tank body 1 .

A silt discharge valve 8 is installed below the silt discharge port 5 .

During production and use, chilled brine is fed into the jacket to cool down, the mother liquor enters the tank from the water inlet, and multi-stage sedimentation and filtration are carried out on the overflow filter plate with overflow weirs on the edge and filter holes at the bottom. After filtration, the mother liquor is finally settled at the bottom of the tank, and the clear liquid is discharged from the water outlet after passing through the baffle, and the solid ammonium chloride is discharged and collected through the silt discharge port and the silt discharge valve.

Claims (5)

1. A device for quickly and efficiently reducing the content of ammonium chloride in acetamidine hydrochloride mother liquor, characterized in that it includes a tank body (1), and inside the tank body (1) there are multiple sets of overflow filters staggered from top to bottom plate (2), the upper part of the tank body (1) is provided with a water inlet (3), the lower part is provided with a water outlet (4), and the bottom is provided with a silt discharge port (5); the water outlet (4) is provided in the tank body (1) on the side wall, and located on the other side of the opening of the bottom overflow filter plate. 2. The device according to claim 1, characterized in that: a baffle (6) is provided inside the tank body (1), and the baffle is vertically arranged in the tank body (1), connecting the water outlet (4) and The silt discharge port (5) is separated. 3. The device according to claim 2, characterized in that: the upper end of the baffle (6) is higher than the position of the water outlet (4). 4. The device according to claim 1, characterized in that: a jacket (7) is provided outside the tank body (1). 5. The device according to claim 1, characterized in that: a silt discharge valve (8) is installed below the silt discharge port (5).