Tail gas treatment device

Abstract

The utility model relates to the technical field of tail gas treatment, in particular to a tail gas treatment device which comprises a shell, a gas inlet adjusting mechanism, a spraying mechanism, a filtering assembly and a cooling mechanism, tail gas to be treated enters an inner shell by jacking up a valve body in the gas inlet adjusting mechanism, tail gas treatment liquid is sprayed through the spraying mechanism, and the tail gas treatment liquid is cooled through the cooling mechanism. The treatment liquid is in contact with the tail gas to adsorb pollutants in the tail gas, the adsorption liquid is adsorbed and removed by the moisture absorbent, the treated tail gas sequentially passes through the moisture absorbent mesh bag, the desulfurizer mesh bag, the activated carbon mesh bag and the filter screen to remove organic matters, solid particles and sulfur-containing components in the tail gas, and the tail gas is discharged after being cooled by the cooling mechanism, so that efficient tail gas treatment operation is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of tail gas treatment, in particular to a tail gas treatment device. Background Art

[0002] Existing exhaust gas treatment devices generally only use a filter screen added to a specific collection container to collect the exhaust gas into the container, and collect pollutants in the exhaust gas through a single-layer filter screen. This method not only cannot effectively treat the exhaust gas, but also has a poor exhaust gas treatment effect. Moreover, after using the container to treat the exhaust gas for a long time, when leakage occurs, it is not convenient to disassemble and adjust the container.

[0003] The Chinese patent document with the announcement number CN209163915U discloses an alarm processing device and an exhaust gas treatment device for a diesel generator, including an exhaust gas treatment chamber, a urea liquid spraying device arranged in the exhaust gas treatment chamber, and an alarm processing device for a diesel generator; used to timely handle the pressure holding phenomenon and effectively handle NO in the exhaust gas; its main purpose is to handle the pressure holding phenomenon, but it does not disclose how to further improve the exhaust gas treatment effect;

[0004] The Chinese patent document with the announcement number CN211913317U discloses an exhaust gas treatment device and an exhaust gas treatment system, in which the exhaust pipe at the tail end is connected to the air inlet of the washing tower, which improves the absorption rate of arsine, realizes the pretreatment of the exhaust gas, and reduces the pressure of subsequent exhaust gas treatment; however, it does not disclose how to disassemble and adjust the container when leakage occurs after the container is used for a long time to treat the exhaust gas;

[0005] In summary, how to design an exhaust gas treatment device to effectively treat exhaust gas and facilitate disassembly and adjustment of the container has become a problem to be solved. Utility Model Content

[0006] The purpose of the utility model is to provide a tail gas treatment device to solve the above problems.

[0007] In order to achieve the above objectives, the following technical solutions are provided:

[0008] A tail gas treatment device, used for tail gas treatment, comprises: a shell, an air intake regulating mechanism, a spray mechanism, a filter assembly and a cooling mechanism, the shell comprises a top plate, a side shell, an inner shell and a bottom plate, the bottom plate and the side shell are detachably bolted, the side shell is also fixed to the top plate to form a closed space, the inner shell is arranged in the closed space formed by the side shell and the top plate, a part of the bottom of the inner shell is radially inwardly reduced in diameter and abuts against the bottom plate, and then the inner shell is limited in the closed space, the air intake regulating mechanism, the spray mechanism, the filter assembly and the cooling mechanism are all arranged in the inner cavity of the inner shell, the shell also comprises an outlet pipe, the outlet pipe is arranged through the top plate, and is communicated with the inner cavity of the inner shell, for discharging treated tail gas.

[0009] Preferably, the inner shell is further fixedly connected with a flange member downwardly along its bottom, the inner cavity of the inner shell is connected with the outside through the flange member, and there is a certain space between the inner shell and the side shell.

[0010] Preferably, the air intake regulating mechanism includes an air intake chamber shell, a valve body, a first spring, a partition and a top seat. The valve body is arranged with a non-through groove. The first spring is arranged corresponding to the groove of the valve body, and its two ends are respectively fixed to the valve body and the top seat. The two ends of the partition are fixed on the air intake chamber shell, and one end of the top seat connected to the first spring is limited in the partition. The air intake regulating mechanism also includes two elastic pads, a second spring is connected between the two elastic pads, and the two elastic pads are respectively fixedly connected to the top seat and the air intake chamber shell.

[0011] Preferably, the air intake regulating mechanism also includes a slide groove, a connecting rod and a slider, the slide groove is fixed on the air intake chamber shell, the connecting rod passes through the top seat and is fixed to the slider, and is limitedly set in the top seat, the slider has the freedom to move along the slide groove, and a baffle and a top plug are also provided in the slide groove, and the top plug is fixed on the baffle plate and is used for buffering the slider.

[0012] Preferably, the spray mechanism includes a spray chamber shell, a liquid inlet pipe, a liquid storage tank and a spray head. The spray chamber shell is fixed on the inner shell. The liquid inlet pipe passes through the spray chamber shell and is connected to the liquid storage tank. The spray head is arranged on the liquid storage tank and is used to spray exhaust gas treatment liquid into the spray chamber shell.

[0013] Preferably, the filter assembly includes a first desiccant net bag, a second desiccant net bag, a desulfurizer net bag, an activated carbon net bag and a filter net. The spray chamber shell is opened at the upper and lower ends. The first desiccant net bag and the second desiccant net bag are respectively arranged at the openings at the upper and lower ends of the spray chamber shell. The cross-section of the second desiccant net bag is trapezoidal. The desulfurizer net bag, activated carbon net bag and filter net are arranged in the inner cavity of the inner shell from bottom to top.

[0014] Preferably, the cooling mechanism includes a liquid nitrogen pipe and a cooling chamber shell, the two ends of the cooling chamber shell are respectively connected to the filter screen and the air outlet pipe, the liquid nitrogen pipe is arranged in the cooling chamber shell, both ends of the liquid nitrogen pipe pass through the cooling chamber shell and the side shell, and are connected to the outside.

[0015] The beneficial effects of the utility model are:

[0016] 1. The tail gas to be treated in the utility model enters the inner shell by lifting the valve body in the air intake regulating mechanism, and the tail gas treatment liquid is sprayed by the spraying mechanism. The treatment liquid contacts the tail gas and adsorbs the pollutants in the tail gas. The adsorbed liquid is absorbed by the desiccant. The treated tail gas passes through the desiccant net bag, the desulfurizer net bag, the activated carbon net bag and the filter net in turn to remove organic matter, solid particles and sulfur-containing components in the tail gas, and is discharged after being cooled by the cooling mechanism, thereby realizing efficient tail gas treatment operation;

[0017] 2. The utility model is connected to the side shell by detachable bolts through the bottom plate. When the device needs to be disassembled and adjusted, the bolts are removed to separate the bottom plate and the side shell, thereby releasing the limit of the inner shell and taking out the inner shell, which is convenient for disassembly and adjustment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 for Figure 1 A schematic diagram of the structure enlargement in the middle;

[0020] Figure 3 for Figure 1 A magnified schematic diagram of the structure at B in the middle;

[0021] Figure 4 It is a schematic diagram of the local structure of the cooling mechanism;

[0022] In the figure:

[0023] 101-top plate, 102-side shell, 103-inner shell, 104-bottom plate, 105-air outlet pipe, 106-flange;

[0024] 2-intake regulating mechanism, 201-intake chamber shell, 202-valve body, 203-first spring, 204-partition plate, 205-top seat, 206-elastic pad, 207-second spring, 208-slide groove, 209-connecting rod, 210-slider, 211-baffle plate, 212-top plug;

[0025] 3-spraying mechanism, 301-spraying chamber shell, 302-liquid inlet pipe, 303-liquid storage tank, 304-spraying head;

[0026] 401-first desiccant net bag, 402-second desiccant net bag, 403-desulfurizer net bag, 404-activated carbon net bag, 405-filter net;

[0027] 5-cooling mechanism, 501-liquid nitrogen tube, 502-cooling chamber shell. DETAILED DESCRIPTION

[0028] The following will combine the embodiments of the present invention to clearly and completely describe the technical solutions of the schematic diagrams in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] like Figure 1-4 As shown, an exhaust gas treatment device for exhaust gas treatment includes: a shell, an air intake adjustment mechanism 2, a spray mechanism 3, a filter assembly and a cooling mechanism 5. The shell includes a top plate 101, a side shell 102, an inner shell 103 and a bottom plate 104. The bottom plate 104 is detachably bolted to the side shell 102. The side shell 102 is also fixed to the top plate 101 to form a closed space. The inner shell 103 is arranged in the closed space formed by the side shell 102 and the top plate 101. A portion of the bottom of the inner shell 103 is reduced in diameter inwardly along its radial direction and abuts against the bottom plate 104, so that the inner shell 103 The air intake regulating mechanism 2, the spraying mechanism 3, the filtering assembly and the cooling mechanism 5 are all arranged in the inner cavity of the inner shell 103. The shell also includes an air outlet pipe 105, which is arranged through the top plate 101 and communicates with the inner cavity of the inner shell 103 to discharge the treated exhaust gas; the bottom plate 104 is detachably connected to the side shell 102 by bolts. When the device needs to be disassembled and adjusted, the bolts are removed to separate the bottom plate 104 and the side shell 102, thereby releasing the limit of the inner shell 103, and the inner shell 103 can be taken out, which is convenient for disassembly and adjustment operations;

[0030] In some embodiments, the inner shell 103 is further fixedly connected with a flange 106 along its bottom downward, and the inner cavity of the inner shell 103 is connected to the outside through the flange 106, and there is a certain space between the inner shell 103 and the side shell 102;

[0031] In some embodiments, the air intake regulating mechanism 2 includes an air intake chamber shell 201, a valve body 202, a first spring 203, a partition 204 and a top seat 205. The valve body 202 is provided with a non-through groove, the first spring 203 is provided correspondingly at the groove of the valve body 202, and its two ends are respectively fixed to the valve body 202 and the top seat 205, the two ends of the partition 204 are fixed to the air intake chamber shell 201, and one end of the top seat 205 connected to the first spring 203 is limited in the partition 204, and the air intake regulating mechanism 2 also includes two elastic pads 206, a second spring 207 is connected between the two elastic pads 206, and the two elastic pads 206 are respectively fixedly connected to the top seat 205 and the air intake chamber shell 201;

[0032] In some embodiments, the air intake adjustment mechanism 2 further includes a slide groove 208, a connecting rod 209 and a slider 210. The slide groove 208 is fixed on the air intake chamber shell 201. The connecting rod 209 passes through the top seat 205 and is fixed to the slider 210, and is limitedly arranged in the top seat 205. The slider 210 has the freedom to move along the slide groove 208. A baffle 211 and a top plug 212 are also arranged in the slide groove 208. The top plug 212 is fixed on the baffle 211 and is used for buffering the slider 210.

[0033] In some embodiments, the spray mechanism 3 includes a spray chamber shell 301, a liquid inlet pipe 302, a liquid storage tank 303 and a spray head 304. The spray chamber shell 301 is fixed to the inner shell 103. The liquid inlet pipe 302 passes through the spray chamber shell 301 and is connected to the liquid storage tank 303. The spray head 304 is arranged on the liquid storage tank 303 and is used to spray the exhaust gas treatment liquid into the spray chamber shell 301.

[0034] In some embodiments, the filter assembly includes a first desiccant mesh bag 401, a second desiccant mesh bag 402, a desulfurizer mesh bag 403, an activated carbon mesh bag 404, and a filter mesh 405. The spray chamber shell 301 is provided with openings at both ends. The first desiccant mesh bag 401 and the second desiccant mesh bag 402 are respectively provided at the openings at both ends of the spray chamber shell 301. The cross section of the second desiccant mesh bag 402 is provided in a trapezoidal shape. The desulfurizer mesh bag 403, the activated carbon mesh bag 404, and the filter mesh 405 are sequentially arranged in the inner cavity of the inner shell 103 from bottom to top.

[0035] In some embodiments, the cooling mechanism 5 includes a liquid nitrogen pipe 501 and a cooling chamber shell 502, and the two ends of the cooling chamber shell 502 are respectively connected to the filter screen 405 and the exhaust pipe 105. The liquid nitrogen pipe 501 is arranged in the cooling chamber shell 502, and its two ends pass through the cooling chamber shell 502 and the side shell 102, and are connected to the outside world; the exhaust gas to be treated enters the inner shell 103 by lifting the valve body 202 in the air intake regulating mechanism 2, and the exhaust gas treatment liquid is sprayed through the spraying mechanism 3. The treatment liquid contacts the exhaust gas and adsorbs pollutants in the exhaust gas. The adsorbed liquid is absorbed by the desiccant. The treated exhaust gas passes through the desiccant mesh bag, the desulfurizer mesh bag 403, the activated carbon mesh bag 404 and the filter screen 405 in turn to remove organic matter, solid particles and sulfur-containing components in the exhaust gas, and is discharged after being cooled by the cooling mechanism 5, thereby realizing efficient exhaust gas treatment operation.

Claims

1. A tail gas treatment device for tail gas treatment, characterized in that: include: A shell, an air intake regulating mechanism, a spray mechanism, a filter assembly and a cooling mechanism, the shell comprising a top plate, a side shell, an inner shell and a bottom plate, the bottom plate and the side shell are detachably bolted, the side shell is also fixed to the top plate to form a closed space, the inner shell is arranged in the closed space formed by the side shell and the top plate, a part of the bottom of the inner shell is radially inwardly reduced in diameter and abuts against the bottom plate, so that the inner shell is limited in the closed space, the air intake regulating mechanism, the spray mechanism, the filter assembly and the cooling mechanism are all arranged in the inner cavity of the inner shell, the shell also includes an exhaust pipe, the exhaust pipe is arranged through the top plate, and is communicated with the inner cavity of the inner shell for discharging treated exhaust gas.

2. The exhaust gas treatment device according to claim 1, characterized in that: The inner shell is also fixedly connected with a flange member downward along the bottom thereof, the inner cavity of the inner shell is connected with the outside through the flange member, and a certain space is provided between the inner shell and the side shell.

3. The exhaust gas treatment device according to claim 2, characterized in that: The air intake regulating mechanism includes an air intake chamber shell, a valve body, a first spring, a partition and a top seat. The valve body is arranged with a non-through groove. The first spring is arranged corresponding to the groove of the valve body, and its two ends are respectively fixed to the valve body and the top seat. The two ends of the partition are fixed on the air intake chamber shell, and one end of the top seat connected to the first spring is limited in the partition. The air intake regulating mechanism also includes two elastic pads, a second spring is connected between the two elastic pads, and the two elastic pads are respectively fixedly connected to the top seat and the air intake chamber shell.

4. The exhaust gas treatment device according to claim 3, characterized in that: The air intake regulating mechanism also includes a slide groove, a connecting rod and a slider. The slide groove is fixed on the air intake chamber shell. The connecting rod passes through the top seat and is fixed to the slider and is limitedly set in the top seat. The slider has the freedom to move along the slide groove. A baffle and a top plug are also provided in the slide groove. The top plug is fixed on the baffle and is used for buffering the slider.

5. The exhaust gas treatment device according to claim 4, characterized in that: The spray mechanism includes a spray chamber shell, a liquid inlet pipe, a liquid storage tank and a spray head. The spray chamber shell is fixed on the inner shell. The liquid inlet pipe passes through the spray chamber shell and is connected to the liquid storage tank. The spray head is arranged on the liquid storage tank and is used to spray exhaust gas treatment liquid into the spray chamber shell.

6. The exhaust gas treatment device according to claim 5, characterized in that: The filter assembly includes a first desiccant net bag, a second desiccant net bag, a desulfurizer net bag, an activated carbon net bag and a filter net. The spray chamber shell is opened at the upper and lower ends. The first desiccant net bag and the second desiccant net bag are respectively arranged at the openings at the upper and lower ends of the spray chamber shell. The cross-section of the second desiccant net bag is trapezoidal. The desulfurizer net bag, the activated carbon net bag and the filter net are arranged in the inner cavity of the inner shell from bottom to top.

7. The exhaust gas treatment device according to claim 6, characterized in that: The cooling mechanism includes a liquid nitrogen pipe and a cooling cavity shell. The two ends of the cooling cavity shell are respectively connected to the filter screen and the air outlet pipe. The liquid nitrogen pipe is arranged in the cooling cavity shell. Both ends of the liquid nitrogen pipe pass through the cooling cavity shell and the side shell and are connected to the outside.

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