CN210332120U

CN210332120U - A tail gas absorbing device for production of chlorinated ether ketone

Info

Publication number: CN210332120U
Application number: CN201920897257.XU
Authority: CN
Inventors: 崔利飞; 王健江; 韩宇
Original assignee: Shandong Jiarui Chemical Co ltd
Current assignee: Shandong Jiarui Chemical Co ltd
Priority date: 2019-06-14
Filing date: 2019-06-14
Publication date: 2020-04-17
Anticipated expiration: 2029-06-14

Abstract

The utility model discloses a tail gas absorbing device for chlorinated ether ketone production, which comprises a tail gas collecting box, wherein the tail gas collecting box is provided with an air inlet, an outward protruding groove, a gas filter screen and a first barometer, the output end of the tail gas collecting box is connected with a water spray tower and an alkali spray tower, a vent pipe is connected between the water spray tower and the alkali spray tower, two ends of the vent pipe are provided with a first gas-liquid separation net, the water spray tower and the alkali spray tower are respectively provided with a second barometer, a ring pipe, a fixed support column, a flow guide hopper, a disc, an air outlet and a second gas-liquid separation net, the water spray tower is connected with a pipeline A, a pipeline B, a first pipeline filter, a second pipeline filter, a water tank and a first liquid accumulation box, the first liquid accumulation box is connected with a first liquid outlet pipe and a first valve, the alkali spray tower is connected with a pipeline C, a pipeline D, a third pipeline filter, a, the second hydrops case is connected with second drain pipe and second valve.

Description

A tail gas absorbing device for production of chlorinated ether ketone

Technical Field

The utility model belongs to the tail gas absorbing device field, concretely relates to tail gas absorbing device for chlorinated ether ketone production.

Background

The chlorinated ether ketone is mainly used as a medical intermediate and also used as a raw material for producing triazole series pesticides, and has wide application, however, in the production of the chlorinated ether ketone, tail gas is generated, contains hydrogen chloride and sulfur dioxide, and if the tail gas is not absorbed and is directly discharged into the air, the tail gas has great influence on the environment, and the tail gas absorption device is involved.

At present, a tail gas absorption device generally used for chlorinated ether ketone production only adopts water spraying and tail gas neutralization to discharge, and the tail gas neutralization and purification are not thorough, on one hand, the direct discharge of hydrochloric acid generated after the hydrogen chloride in the tail gas produced by the chlorinated ether ketone and the water is neutralized can also cause certain influence on the environment, and in the industry, the hydrochloric acid has a large amount of use space, and the direct discharge is laid and wasted; the tail gas treatment method of neutralizing the tail gas produced by alkali spraying and chlorinated ether ketone is also adopted, sodium sulfite is produced after the sulfur dioxide in the tail gas produced by alkali and chlorinated ether ketone is neutralized, the same problem as water spraying is also existed, and the sodium sulfite is more harmful; and current tail gas absorbing device does not solve to the tail gas leakage problem, but if the tail gas of chlorinated ether ketone production takes place to leak in the production operation process, has strong stimulation to human respiratory tract and oral mucosa, directly harms operator's health and safety, and general tail gas absorbing device does not contain the filter effect in addition, and this can lead to impurity such as dust that carries in the gas to pile up in the device, reduces the result of use.

SUMMERY OF THE UTILITY MODEL

To the problem that the above-mentioned background art provided, the utility model aims at: aims to provide a tail gas absorption device for the production of chlorinated ether ketone. In order to realize the technical purpose, the utility model discloses a technical scheme as follows:

the utility model provides a tail gas absorbing device for chlorinated ether ketone production, includes the tail gas collecting box, be equipped with air inlet and evagination recess on the tail gas collecting box, the evagination recess disposes gas filtration net, be equipped with first barometer on the tail gas collecting box, tail gas collecting box output is connected with water spray column and alkali spray column, be connected with the breather pipe between water spray column and the alkali spray column, the breather pipe both ends are equipped with first gas-liquid separation net, be equipped with the second barometer on equal outer wall on water spray column and the alkali spray column outer wall, all be equipped with the ring pipe in water spray column and the alkali spray column, the ring pipe is connected with the fixed stay post, evenly gather on the ring pipe and have A aperture, equal fixedly connected with water conservancy diversion fill and disc in water spray column and the alkali spray column, evenly gather on the disc has B aperture, all be connected with the gas outlet in water spray column and the alkali spray, be equipped with second gas-liquid separation net in the gas outlet, the water spray column is connected with A pipeline and B pipeline, be equipped with first pipeline filter on the A pipeline, be equipped with second pipeline filter on the B pipeline, A pipeline input is connected with the water tank, B pipeline output is connected with first hydrops case, first hydrops case is connected with first drain pipe, be equipped with first valve on the first drain pipe, the alkali spray column is connected with C pipeline and D pipeline, be equipped with third pipeline filter on the C pipeline, the D pipeline is equipped with fourth pipeline filter, C pipeline input is connected with the lye case, D pipeline output is connected with second hydrops case, the second hydrops case is connected with the second drain pipe, be equipped with the second valve on the second drain pipe.

Further inject, evagination recess and gas filter screen contact position are equipped with the sealing washer, and such design prevents gas leakage, guarantees safety.

Further limiting, the aperture size of the small hole A is gradually reduced from inside to outside, and due to the design, water is more impacted and is more easily atomized when sprayed.

Further inject, pipeline A, pipeline B, pipeline C and D all adopt stainless steel, and such design is corrosion-resistant, high temperature resistant, long service life.

Further, the first valve and the second valve are electromagnetic induction valves, and the design is convenient for taking and discharging.

Adopt the beneficial effects of the utility model:

1. the design of the water spray tower and the alkali spray tower has better treatment effect on tail gas and higher treatment efficiency.

2. The design of the water spray tower, the alkali spray tower, the first liquid accumulation box and the second liquid accumulation box well separately collects water and alkali to neutralize the tail gas to generate hydrochloric acid and sodium sulfite, effectively recycles the tail gas and saves the economic cost.

3. The design of the first barometer and the second barometer controls the pressure of the gas, and whether the gas leaks or not is monitored according to whether the gas pressure is reduced or not, so that the safety is high.

4. The installation setting of gas filter screen, first pipeline filter and second pipeline filter, third pipeline filter and fourth pipeline filter has confirmed the filter effect.

Drawings

The present invention can be further illustrated by the non-limiting examples given in the accompanying drawings;

FIG. 1 is a schematic structural diagram of an embodiment of a tail gas absorption device for chlorinated ether ketone production according to the present invention;

FIG. 2 is a schematic diagram of a front view structure of an embodiment of a tail gas absorption device for chlorinated ether ketone production according to the present invention;

FIG. 3 is a schematic left-side view of an embodiment of a tail gas absorption apparatus for chlorinated ether ketone production according to the present invention;

FIG. 4 is a schematic top view of an embodiment of a tail gas absorption apparatus for chlorinated ether ketone production according to the present invention;

FIG. 5 is a schematic structural view of a spray tower according to an embodiment of the tail gas absorption apparatus for chlorinated ether ketone production of the present invention;

fig. 6 is an enlarged view of a portion a in fig. 1.

The main element symbols are as follows:

the tail gas purification device comprises a tail gas collecting box 1, a gas inlet 2, a convex groove 3, a gas filter screen 4, a first air pressure gauge 5, a water spray tower 6, an alkali spray tower 7, a vent pipe 8, a first gas-liquid separation net 9, a second air pressure gauge 10, a ring pipe 11, a fixed support column 12, a small hole A13, a disc 14, a small hole B15, a gas outlet 16, a second gas-liquid separation net 17, a pipeline A18, a pipeline B19, a first pipeline filter 20, a second pipeline filter 21, a water tank 22, a first liquid accumulation box 23, a first liquid outlet pipe 24, a first valve 25, a pipeline C26, a pipeline D27, a third pipeline filter 28, a four pipeline filter 29, an alkali liquid box 30, a second liquid accumulation box 31, a second liquid outlet pipe 32, a second valve 33 and a flow guide hopper 34.

Detailed Description

In order to make the present invention better understood by those skilled in the art, the technical solutions of the present invention are further described below with reference to the accompanying drawings and examples.

As shown in figures 1, 2, 3, 4, 5 and 6, the tail gas absorption device for chlorinated ether ketone production comprises a tail gas collection box 1, wherein the tail gas collection box 1 is provided with an air inlet 2 and an outward protruding groove 3, the outward protruding groove 3 is provided with a gas filter screen 4, the tail gas collection box 1 is provided with a first barometer 5, the output end of the tail gas collection box 1 is connected with a water spray tower 6 and an alkali spray tower 7, a vent pipe 8 is connected between the water spray tower 6 and the alkali spray tower 7, two ends of the vent pipe 8 are provided with a first gas-liquid separation screen 9, the outer walls of the water spray tower 6 and the alkali spray tower 7 are respectively provided with a second barometer 10, the water spray tower 6 and the alkali spray tower 7 are respectively provided with a ring pipe 11, the ring pipe 11 is connected with a fixed support column 12, the ring pipe 11 is uniformly and densely provided with A pores 13, the water spray tower 6 and the alkali spray tower 7 are respectively and fixedly connected with, the disc 14 is uniformly and densely provided with small holes B15, gas outlets 16 are connected in the water spray tower 6 and the alkali spray tower 7, a second gas-liquid separation net 17 is arranged in the gas outlet 16, the water spray tower 6 is connected with a pipeline A18 and a pipeline B19, the pipeline A18 is provided with a first pipeline filter 20, the pipeline B19 is provided with a second pipeline filter 21, the input end of the pipeline A18 is connected with a water tank 22, the output end of the pipeline B19 is connected with a first accumulated liquid tank 23, the first accumulated liquid tank 23 is connected with a first liquid outlet pipe 24, the first liquid outlet pipe 24 is provided with a first valve 25, the alkali spray tower 7 is connected with a pipeline C26 and a pipeline D27, the pipeline C26 is provided with a third pipeline filter 28, the pipeline D27 is provided with a fourth pipeline filter 29, the input end of the pipeline C26 is connected with an alkali liquid tank 30, the output end of the pipeline D27 is connected with a second accumulated liquid, a second valve 33 is arranged on the second liquid outlet pipe 32.

In the embodiment, when the tail gas absorption device for the production of the chlorinated ether ketone is used, the tail gas is firstly gathered into the tail gas collection box 1 through the gas inlet 2, after being filtered by a gas filter screen 4 in a convex groove 3 on the tail gas collecting box 1, the tail gas enters a water spray tower 6 and an alkali spray tower 7, the water and the alkali liquor in the water tank 22 and the alkali liquor tank 30 enter the loop pipe 11 after being filtered by the first pipe filter 20 and the third pipe filter 28 provided on the a pipe 18 and the C pipe 26, then the liquid is sprayed out from the small hole A13 arranged on the annular pipe 11, and is affected by pressure effect, when the sprayed liquid impacts on the inner wall of the spray tower, the liquid is in a mist shape, therefore, the tail gas is better neutralized, the flow guide hopper 34 arranged at the lower side of the spray tower and the disc 14 arranged at the upper side of the spray tower limit the neutralization space to a certain extent, and the neutralization efficiency is improved; the gas after neutralization and purification is discharged after gas-liquid separation through a second gas-liquid separation net 17 arranged in a gas outlet 16, and a vent pipe 8 connected between a water spray tower 6 and an alkali spray tower 7 and a first gas-liquid separation net 9 arranged in the vent pipe 8 also realize gas circulation between the two spray towers by tail gas, thereby further enhancing the neutralization effect, shortening the neutralization time and indirectly increasing the gas capacity; the liquid after neutralization and purification respectively flows into the first liquid accumulating box 23 and the second liquid accumulating box 31 for collection and storage after passing through the second pipeline filter 21 and the fourth pipeline filter 29 arranged on the B pipeline 19 and the D pipeline 27, the corresponding liquid generated after the neutralization reaction with the tail gas can be accessed and recycled by opening the first valve 25 and the second valve 33 arranged on the first liquid outlet pipe 24 and the second liquid outlet pipe 32 connected with the first liquid accumulating box 23 and the second liquid accumulating box 31, and the economic cost is saved.

Preferably, the contact position of the convex groove 3 and the gas filter screen 4 is provided with a sealing ring, so that gas leakage is prevented, safety is guaranteed, and actually, other sealing methods can be considered according to specific conditions.

The aperture size of the A small holes 13 is preferably gradually reduced from inside to outside, so that water is more likely to have impact force when sprayed out and is more easily atomized, and actually, the number of the small holes can be increased according to specific conditions.

Preferably, the pipeline a 18, the pipeline B19, the pipeline C26 and the pipeline D27 are made of stainless steel, and are corrosion-resistant, high-temperature-resistant and long in service life.

Preferably, the first valve 25 and the second valve 33 are electromagnetic valves to facilitate the access and the discharge, and in fact, manual valves may be considered according to specific situations.

The above embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.

Claims

1. The utility model provides a tail gas absorbing device for chlorinated ether ketone production, includes tail gas collecting box (1), its characterized in that: be equipped with air inlet (2) and evagination recess (3) on tail gas collecting box (1), evagination recess (3) dispose gas filter screen (4), be equipped with first barometer (5) on tail gas collecting box (1), tail gas collecting box (1) output is connected with water spray column (6) and alkali spray column (7), be connected with breather pipe (8) between water spray column (6) and alkali spray column (7), breather pipe (8) both ends are equipped with first gas-liquid separation net (9), all be equipped with second barometer (10) on water spray column (6) and alkali spray column (7) outer wall, all be equipped with annular pipe (11) in water spray column (6) and alkali spray column (7), annular pipe (11) are connected with fixed stay post (12), even dense cloth has A aperture (13) on annular pipe (11), equal fixedly connected with guide fill (34) and disc in water spray column (6) and alkali spray column (7) are fought (14) The disc (14) is uniformly and densely provided with B small holes (15), the water spray tower (6) and the alkali spray tower (7) are internally connected with a gas outlet (16), a second gas-liquid separation net (17) is arranged in the gas outlet (16), the water spray tower (6) is connected with an A pipeline (18) and a B pipeline (19), the A pipeline (18) is provided with a first pipeline filter (20), the B pipeline (19) is provided with a second pipeline filter (21), the input end of the A pipeline (18) is connected with a water tank (22), the output end of the B pipeline (19) is connected with a first liquid collecting tank (23), the first liquid collecting tank (23) is connected with a first liquid outlet pipe (24), the first liquid outlet pipe (24) is provided with a first valve (25), the alkali spray tower (7) is connected with a C pipeline (26) and a D pipeline (27), be equipped with third pipeline filter (28) on C pipeline (26), D pipeline (27) are equipped with fourth pipeline filter (29), C pipeline (26) input is connected with lye tank (30), D pipeline (27) output is connected with second hydrops case (31), second hydrops case (31) are connected with second drain pipe (32), be equipped with second valve (33) on second drain pipe (32).

2. The tail gas absorption device for chlorinated ether ketone production according to claim 1, wherein the tail gas absorption device comprises: and a sealing ring is arranged at the contact position of the convex groove (3) and the gas filter screen (4).

3. The tail gas absorption device for chlorinated ether ketone production according to claim 2, wherein the tail gas absorption device comprises: the aperture size of the A small hole (13) is gradually reduced from inside to outside.

4. The tail gas absorption device for chlorinated ether ketone production according to claim 3, wherein the tail gas absorption device comprises: the pipeline A (18), the pipeline B (19), the pipeline C (26) and the pipeline D (27) are all made of stainless steel.

5. The tail gas absorption device for chlorinated ether ketone production according to claim 4, wherein the tail gas absorption device comprises: the first valve (25) and the second valve (33) are electromagnetic induction valves.