SU977988A2 - Device for sampling dispersed material from high-temperature gas flow - Google Patents

Description

The invention relates to a device for sampling dispersed material from a high temperature gas stream containing water vapor, and can be used in the chemical industry, in particular, in the production of soot.

According to the main author. St. No. 830183, a device is known for sampling in a stream, including a cyclone, nozzles for supplying and discharging gas and a unit for receiving selected material.

This device is equipped with a pipe installed with the possibility of movement along the cyclone axis, the lower end of which is installed in the receiving unit of the selected material, and the upper end is in the gas outlet pipe [ί].

The disadvantage of this device is that at the time of selection of the dispersed material, a tight junction between the cyclone and the receiving unit of the selected 2 nd material is not provided. In addition, environmental pollution is also carried out at the time of removal of the unit together with the material, since the gas duct does not overlap. Due to the leakage of the joint, the pressure in the block is close to atmospheric, while, for example, in the carbon black reactor there is some rarefaction and therefore the device ₁₀ does not provide the necessary stability in operation. The disadvantage of this device is that the removal of the block is carried out manually.

The purpose of the invention is the improvement of ¹⁵ performance of the device and the elimination of environmental pollution.

This goal is achieved by the fact that the device for sampling, containing a cyclone, gas supply and exhaust pipes, a block for receiving selected material, a pipe installed along the axis of the cyclone, is equipped with a ring attached to the lower end of the cyclic gas condensate pump unit, the lower end of the pipe is made with holes and equipped with a fixed at the end with a conical plug installed in the hole of the ring, the block for receiving the selected material is made in the form of two telescopically connected pipes,. while the lower pipe is mounted with the possibility of axial movement, and is equipped with cuffs, one of which is installed between the pipes, and the second on its lower end, and the base attached to this end, It is advisable to equip the device with a temporary setting device with actuators for moving the cyclone pipe and the lower pipe of the block receiving the selected material. ⁴

The drawing shows a device, a longitudinal section.

The device includes a cyclone pipe 1 ά with a plug 2, a ring 3, a block C for receiving selected material with a lower pipe 5, an upper pipe 6 and a base 7, cuffs 8 and 9, an inlet pipe 10, an outlet pipe 11, a temporary driver 12, an actuator 13 lifting the cyclone pipe, the actuator 14 lifting the lower pipe of the material receiving unit and cycle 15.

® The pipe 1 is provided with openings 16 for the circulation of gases and is mounted with the possibility of vertical movement in the cyclone 15. At the end of the pipe 1, a plug 2 is fixed, which is mounted with a tapered surface in the hole of the ring 3.

Block 4 for receiving the selected material consists of two telescopically arranged pipes that can be moved relative to each other, lower 5 and upper 6, between which there is a sleeve 8 ”and a sleeve 8”; lower pipe 5 has 9 installed, the pipe of which abuts 7 ”

The Executive Lows 13 and 14 of the lifting pipe 5 are controlled from a temporary master device 12.

The device operates as follows "

At the initial moment, the pipe 1 is in the lower position, while the plug 2 with its conical surface tightly closes the hole in the ring 3 of the block 4 for receiving the selected material, under45. 30 heights

-1 The main part heats its walls. ·? ... dispersed in it rinses through holes;

and enters the gas, strengthened in such a way that z; the constant discharge tube 4 of which is tightly pressed by the cuff 9 to the base 7. Therefore, a certain amount of gas heated above the dew point of the post is, - from the gas duct into the pipe 10 of the visa and lowering into the lower part of the central part 15, together with the contents of the union 16 into the pipe of the exhaust pipes 11, a tube is created in the gas duct ”

The command signal from the temporary master fixture 12 is supplied to the actuator 13, the pipe 1 rises, opening the entrance to the receiving unit of the selected material. In this case, the pressure drop in the cyclone 15 and nozzle 11 decreases, respectively, the suction force through the pipe 1 decreases, and the particles of material, separating from the gas, fill the receiving unit of the extracted material, the purified gas is sucked back into the gas duct. In this position, the pipe 5 is pressed firmly to the base and the cuff 8 is sandwiched between the flanges of the pipes 5 and 6, providing the necessary tightness of the joint.

After a specified time, a signal is sent to the actuator 13, the pipe 1 is lowered, closing the hole in the ring 3 with a plug 2 ”. The specified time is set based on filling at least 0.8 of the volume of the block 4 for receiving the selected material.

After locking the exit from the cyclone 15 with a temporary master device, a command signal is sent to the actuator 14, as a result of which the lower pipe 5 is removed. "The selected material is pressed onto the base'7.

Thus, the proposed swarm provides an automated selection of material to ensure the integrity of the entire device.

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Claims (1)

1. USSR author's certificate No. 830183, -.-. P, G 01 N 1/20, 1981.