Tail gas spraying device for chromic acid product production
By employing multiple spraying methods and a multi-layer filtration structure in the exhaust gas spraying device, the problems of low spraying liquid utilization efficiency and unsatisfactory impurity capture effect have been solved, achieving efficient exhaust gas treatment and long-term stable operation of the device.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-21
- Publication Date
- 2026-03-31
AI Technical Summary
Existing exhaust gas spraying devices have a simple structure, low efficiency in spraying liquid utilization, and unsatisfactory effect in capturing impurities inside the exhaust gas through the spraying pipes.
It employs multiple spraying methods and a multi-layer filtration structure, including spray coils, multiple spray heads, and multiple filter layers. By combining multiple spraying methods and filter layers, it improves the utilization rate of the spray liquid and the effect of impurity capture.
It improves exhaust gas treatment efficiency, reduces the frequency of spray head clogging, and extends the service life of the device.
Smart Images
Figure CN224057043U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to tail gas spraying technical field, concretely is a tail gas spraying device for chromic acid product production. BACKGROUND
[0002] The tail gas spraying device for chromic acid product production is a device specially designed for treating tail gas generated in the production process of chromic acid products. The device achieves the purpose of purifying tail gas by fully contacting the tail gas with the absorption liquid through spraying.
[0003] The existing tail gas spraying device is composed of a spraying tower, an air inlet pipeline, an air outlet pipeline, a liquid discharge pipeline, and an internal spraying pipe. During use, the tail gas generated in the production of chromic acid products is introduced into the internal spraying tower through the air inlet pipeline. After the tail gas is treated by spraying through the spraying pipe, the treated tail gas is discharged from the air outlet pipeline, and the sprayed liquid is discharged from the liquid discharge pipeline. However, this spraying method has a single structure and cannot achieve efficient use of the spraying liquid. Moreover, the single spraying pipeline has an unsatisfactory effect on capturing impurities inside the tail gas. SUMMARY
[0004] The utility model aims to provide a tail gas spraying device for chromic acid product production to solve the problem of the single structure of the existing spraying tower spraying method, which cannot achieve efficient use of the spraying liquid and has an unsatisfactory effect on capturing impurities inside the tail gas.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a tail gas spraying device for chromic acid product production, comprising a spraying tower body, a gas guide pipe, and a spraying coil pipe. One side of the spraying tower body is connected with the gas guide pipe. One end of the gas guide pipe is connected with a gas equalization frame. The bottom of the spraying tower body is connected with a first guide-out pipe. The upper side of the spraying tower body is provided with a sealing cover. The middle part of the sealing cover is connected with an air outlet pipe.
[0006] The bottom of the spraying tower body is connected with one end of a suction pipe. The other end of the suction pipe is connected with one side of a suction pump. The other side of the suction pump is connected with one end of a flow guide pipe. The other end of the flow guide pipe is connected with the spraying coil pipe. One end of the spraying coil pipe is connected with a spraying pipe. A flow stop valve is installed on the end of the spraying coil pipe close to the spraying pipe. One side of the spraying pipe is connected with a spraying column.
[0007] Preferably, spraying heads are installed on the outside of the spraying column and the spraying coil pipe. Two groups of spraying heads are arranged on the outside of the spraying column. The spraying directions of the two groups of spraying heads are both horizontally arranged.
[0008] Preferably, the spray head is arranged at equal intervals at the bottom of the spray coil, and the spray coil is arranged in a pagoda shape.
[0009] Preferably, the bottom of the spray tower body is arranged in an arc shape, and the height of the periphery is lower than the height of the middle part.
[0010] Preferably, the spray tower body is connected with a first filter layer, a second filter layer and a third filter layer inside, and the second filter layer and the third filter layer are located inside the first filter layer.
[0011] Preferably, the third filter layer is located inside the second filter layer, the bottom of the second filter layer is connected with one end of a second outlet pipe, and the other end of the second outlet pipe is connected with the first outlet pipe.
[0012] Preferably, the bottom of the third filter layer is connected with one end of a third outlet pipe, the other end of the third outlet pipe is connected with the first outlet pipe, and the ends close to the first outlet pipe of the third outlet pipe and the second outlet pipe are both provided with a stop valve.
[0013] Compared with the prior art, the chromium acid product production tail gas spraying device has the advantages that: the tail gas inside the spray tower body is sprayed by using multiple spraying modes, the substances inside the tail gas can be better captured, the treatment efficiency of the tail gas is improved, the frequency of the spray head being blocked can be effectively reduced by arranging multiple filter layers, the long-term use of the spray tower body is facilitated, the problems of the single spraying mode structure of the existing spray tower, the inability to realize efficient use of the spraying liquid, and the unsatisfactory capturing effect of the single spraying pipeline on the impurities inside the tail gas are solved.
[0014] 1. The chromium acid product production tail gas spraying device is convenient for better spraying the tail gas inside the spray tower body, the liquid for absorbing the tail gas is introduced into the spray column inside by the spraying pipe after the tail gas is introduced into the spray tower body, the impurities inside the rising tail gas are intercepted in all directions, the liquid inside the spray tower body is transported to the spraying coil through the flow guide pipe by starting the suction pump to spray the tail gas, the utilization rate of the spraying liquid is improved, the connection channel between the flow guide pipe and the spraying pipe can be opened by the flow stop valve when the suction pump stops working, the spraying liquid at the spraying pipe can be introduced into the spraying coil for spraying when the suction pump stops working, the chromium acid product production tail gas spraying device sprays the tail gas inside the spray tower body by using multiple spraying modes, the substances inside the tail gas can be better captured, and the treatment efficiency of the tail gas is improved.
[0015] 2. The tail gas spraying device for chromium acid product production, in order to avoid that the suction pipe and the suction pump extract the sediments when sucking the liquid in the inside of the spraying tower body, the first filter layer, the second filter layer and the third filter layer which can intercept the sediments are arranged in the inside of the spraying tower body, through the cooperation of the three filter layers, the filtration of the liquid can be better realized, and the impurities filtered by the second filter layer and the third filter layer are respectively conducted to the first conducting pipe to be uniformly conducted, the tail gas spraying device for chromium acid product production, through the arrangement of the multiple filter layers, the frequency of the clogging of the spraying head can be effectively reduced, thereby facilitating the long-term use of the spraying tower body. BRIEF DESCRIPTION OF DRAWINGS
[0016] Figure 1 It is a three-dimensional structure schematic view of the tail gas spraying device of the utility model;
[0017] Figure 2 It is a spraying tower body overhead structure schematic view of the utility model;
[0018] Figure 3 It is a three-dimensional sectional structure schematic view of the tail gas spraying device of the utility model;
[0019] Figure 4 It is a filter layer three-dimensional sectional structure schematic view of the utility model.
[0020] In the drawing: 1, spraying tower body; 101, gas conducting pipe; 102, gas equalizing frame; 103, first conducting pipe; 2, sealing cover; 201, exhaust pipe; 3, suction pipe; 301, suction pump; 302, flow guide pipe; 303, spraying coil pipe; 3031, flow stop valve; 304, spraying pipe; 305, spraying column; 306, spraying head; 4, first filter layer; 401, second filter layer; 402, second conducting pipe; 403, third filter layer; 404, third conducting pipe; 405, stop valve. DETAILED DESCRIPTION
[0021] The technical scheme in the embodiments of the utility model will be apparently and completely described below with the drawings in the embodiments of the utility model, and apparently, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by the ordinary skilled in the art without creative labor belong to the protection scope of the utility model.
[0022] Please refer to Figures 1-4The utility model provides a kind of technical scheme: a tail gas spraying device for chromium acid product production, including spraying tower body 1, gas guide pipe 101 and spraying coil pipe 303, the side of spraying tower body 1 is connected with gas guide pipe 101, one end of gas guide pipe 101 is connected with gas equalization frame 102, the bottom of spraying tower body 1 is connected with first lead-out pipe 103, the upper side of spraying tower body 1 is provided with sealing cover 2, the middle part of sealing cover 2 is connected with exhaust pipe 201;
[0023] The bottom of spraying tower body 1 is connected with one end of suction pipe 3, the other end of suction pipe 3 is connected with one side of suction pump 301, the other side of suction pump 301 is connected with one end of flow guide pipe 302, the other end of flow guide pipe 302 is connected with spraying coil pipe 303, one end of spraying coil pipe 303 is connected with spraying pipe 304, and spraying coil pipe 303 is installed with stop valve 3031 close to one end of spraying pipe 304, one side of spraying pipe 304 is connected with spraying column 305, spraying head 306 is installed on the outside of spraying column 305 and spraying coil pipe 303, two groups of spraying head 306 are provided on the outside of spraying column 305, and the spraying direction of two groups of spraying head 306 is horizontally arranged, spraying head 306 is arranged at equal intervals at the bottom of spraying coil pipe 303, spraying coil pipe 303 is arranged in pagoda shape, and the bottom of spraying tower body 1 is arranged in arc shape, and the height of the periphery is lower than the height of the middle part.
[0024] When being implemented, in order to better spray the tail gas in the spraying tower body 1, after the tail gas is introduced into the spraying tower body 1 through gas guide pipe 101 and gas equalization frame 102, spraying pipe 304 will introduce the liquid for absorbing the tail gas into spraying column 305, the liquid is sprayed around the spraying tower body 1 through spraying head 306 around spraying column 305, which is convenient for intercepting the impurities in the rising tail gas in all directions, and the suction pump 301 at the bottom of the spraying tower body 1 is started, the reusable liquid in the spraying tower body 1 is transported to spraying coil pipe 303 through flow guide pipe 302 by suction pump 301 through suction pipe 3, the tail gas is sprayed through spraying head 306 installed at equal intervals at the bottom of spraying coil pipe 303, the utilization rate of spraying liquid is improved, and flow guide pipe 302 can open the connection channel between spraying pipe 304 through stop valve 3031, when suction pump 301 stops working, the spraying liquid at spraying pipe 304 can be introduced into spraying coil pipe 303, and sprayed through spraying head 306, the tail gas in the spraying tower body 1 is sprayed by using multiple spraying modes, which can better capture the substances in the tail gas and improve the processing efficiency of the tail gas.
[0025] Reference Figure 3 And Figure 4It can be known that the first filter layer 4, the second filter layer 401 and the third filter layer 403 are connected inside the spray tower body 1, the second filter layer 401 and the third filter layer 403 are located inside the first filter layer 4, the third filter layer 403 is located inside the second filter layer 401, the bottom of the second filter layer 401 is connected with one end of the second leading-out pipe 402, the other end of the second leading-out pipe 402 is connected with the first leading-out pipe 103, the bottom of the third filter layer 403 is connected with one end of the third leading-out pipe 404, the other end of the third leading-out pipe 404 is connected with the first leading-out pipe 103, and the other end of the third leading-out pipe 404 and the second leading-out pipe 402 close to the first leading-out pipe 103 is provided with a stop valve 405.
[0026] In specific implementation, in order to avoid that the suction pipe 3 and the suction pump 301 extract the sediments when sucking the liquid inside the spray tower body 1, the first filter layer 4, the second filter layer 401 and the third filter layer 403 are arranged inside the spray tower body 1 to intercept the sediments, through the cooperation of the three filter layers, the liquid can be better filtered, the impurities filtered by the second filter layer 401 and the third filter layer 403 are respectively guided to the first leading-out pipe 103 through the second leading-out pipe 402 and the third leading-out pipe 404 to be uniformly led out, at the same time, in order to avoid the backflow of the led-out material, the second leading-out pipe 402 and the third leading-out pipe 404 are provided with the stop valve 405, the tail gas spraying device for chromium acid product production can effectively reduce the frequency of the spraying head 306 being blocked, thereby facilitating the long-term use of the spray tower body 1.
[0027] In summary, when the tail gas spraying device for chromium acid product production is used, the tail gas is guided into the spray tower body 1 through the gas guiding pipe 101 and the gas equalizing frame 102, the liquid for absorbing the tail gas is guided into the spray column 305 through the spraying pipe 304, the spray tower body 1 around is sprayed through the spraying head 306 around the spray column 305, the suction pump 301 at the bottom of the spray tower body 1 is started, the reusable liquid inside the spray tower body 1 is transported to the spraying coil 303 through the flow guiding pipe 302 by the suction pipe 3, the tail gas is sprayed through the spraying head 306 equidistantly arranged at the bottom of the spraying coil 303, the tail gas after the spraying treatment can be led out through the exhaust pipe 201 on the upper side of the sealing cover 2, the contents not described in detail in the description belong to the prior art known to the person skilled in the art.
[0028] Although the utility model has been explained in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacement to part of the technical features, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.
Claims
1. A tail gas spraying device for producing chromic acid products, comprising a spraying tower body (1), a gas guide pipe (101) and a spraying coil pipe (303), characterized in that: One side of the spray tower body (1) is connected with a gas guide pipe (101), one end of the gas guide pipe (101) is connected with a gas equalizing frame (102), the bottom of the spray tower body (1) is connected with a first guide pipe (103), the upper side of the spray tower body (1) is provided with a sealing cover (2), the middle part of the sealing cover (2) is connected with an exhaust pipe (201); One end of the suction pipe (3) is connected with the bottom of the spray tower body (1), the other end of the suction pipe (3) is connected with one side of a suction pump (301), the other side of the suction pump (301) is connected with one end of a flow guide pipe (302), the other end of the flow guide pipe (302) is connected with a spray coil pipe (303), one end of the spray coil pipe (303) is connected with a spray pipe (304), and a flow stop valve (3031) is installed on the end of the spray coil pipe (303) close to the spray pipe (304), one side of the spray pipe (304) is connected with a spray column (305); The first filter layer (4), the second filter layer (401) and the third filter layer (403) are connected inside the spray tower body (1), the second filter layer (401) and the third filter layer (403) are located inside the first filter layer (4); The third filter layer (403) is located inside the second filter layer (401), the bottom of the second filter layer (401) is connected with one end of a second guide pipe (402), the other end of the second guide pipe (402) is connected with the first guide pipe (103); The bottom of the third filter layer (403) is connected with one end of a third guide pipe (404), the other end of the third guide pipe (404) is connected with the first guide pipe (103), and the ends of the third guide pipe (404) and the second guide pipe (402) close to the first guide pipe (103) are both provided with a stop valve (405).
2. The tail gas spraying device for producing chromic acid products according to claim 1, characterized in that: The spray column (305) and the spray coil pipe (303) are both provided with spray heads (306) outside, two groups of the spray heads (306) are provided outside the spray column (305), and the spray directions of the two groups of the spray heads (306) are both horizontally arranged.
3. The tail gas spraying device for producing chromic acid products according to claim 2, characterized in that: The spray heads (306) are arranged at equal intervals at the bottom of the spray coil pipe (303), and the spray coil pipe (303) is arranged in a pagoda shape.
4. The tail gas spraying device for producing chromic acid products according to claim 1, characterized in that: The bottom of the spray tower body (1) is arranged in an arc shape, and the height of the periphery is lower than the height of the middle part.