Multi-stage filtering equipment for tail gas treating fluid

Abstract

The utility model provides multi-stage filtering equipment for tail gas treating fluid, and belongs to the technical field of tail gas treating fluid. The tail gas treatment liquid multi-stage filtering equipment comprises a shell, the shell comprises a shell body, a top end opening is formed in the top of the shell body, a top cover is arranged at the top of the top end opening, a feeding port is formed in one side of the top end of the shell body, a feeding assembly is fixedly installed on one side of the feeding port, a discharging port is formed in the bottom of the shell body, and a discharging assembly is fixedly installed on one side of the discharging port. A discharging assembly is fixedly installed at the bottom of the discharging opening, a filter piece inserting groove is formed in one side of the middle of the shell, two filter piece assemblies are arranged in the filter piece inserting groove, the top cover comprises a cover body and a filter screen, the cross section of the filter screen is of a W-shaped structure, and a fixing ring is fixedly installed on the outer side of the filter screen. According to the tail gas treatment liquid filtering device, tail gas treatment liquid can be subjected to multi-stage filtering, the filtering capacity can be rapidly recovered, and the tail gas treatment liquid filtering device has high practical value.

Description

Technical Field

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

[0002] Diesel exhaust treatment fluid (commonly known in China as: automotive urea, automotive urea, automotive environmentally friendly urea) is a consumable that must be used in SCR technology. The operation process of the SCR system is: when nitrogen oxides are found in the exhaust pipe, the urea tank automatically sprays out diesel exhaust treatment fluid, and the diesel exhaust treatment fluid and nitrogen oxides undergo an oxidation-reduction reaction in the SCR catalytic reaction tank to generate pollution-free nitrogen and water vapor for discharge. The exhaust treatment fluid is usually stored in large storage tanks. Long-term storage can easily lead to internal precipitation and impurities. Failure to filter the impurities when taking it will affect its use.

[0003] Based on the above, the inventors have found the following problems: the current tail gas treatment liquid storage tank is usually only equipped with one layer of filter screen for filtering, which has limited filtering effect, and the filter screen is easily clogged, which is inconvenient to use.

[0004] Therefore, in view of this, the existing structure and deficiencies are studied and improved, and a multi-stage filtration device for exhaust gas treatment liquid is provided, in order to achieve a purpose with greater practical value. Utility Model Content

[0005] In order to solve the above technical problems, the embodiment of the utility model provides a multi-stage filtration device for tail gas treatment liquid, which is specifically implemented by the following technical solutions:

[0006] A multi-stage filtering device for tail gas treatment liquid, comprising an outer shell, the outer shell comprising a shell, a top opening is provided on the top of the shell, a top cover is provided on the top of the top opening, a feed port is provided on one side of the top of the shell, a feed assembly is fixedly installed on one side of the feed port, a discharge port is provided on the bottom of the shell, a discharge assembly is fixedly installed on the bottom of the discharge port, a filter plate slot is provided on one side of the middle of the shell, two filter plate assemblies are provided inside the filter plate slot, the top cover comprises a cover body and a filter screen, the cross-section of the filter screen is a "W"-shaped structure, a fixing ring is fixedly installed on the outside of the filter screen, a sliding ring is fixedly installed on the middle of the inner side of the filter screen, a mounting ring is fixedly installed on the top of the inner side of the shell, the fixing ring is mounted on the top of the mounting ring, a plurality of magnetic blocks are fixedly installed on the top of the mounting ring, and the fixing ring is made of stainless steel.

[0007] The beneficial effect of adopting the above further scheme is that a feed port is opened on one side of the top of the shell body, and a feed assembly is fixedly installed on one side of the feed port, which is convenient for the feed assembly to be fixedly connected to the storage tank, and convenient for the feed assembly to control the exhaust gas treatment liquid to enter the device; a discharge port is opened at the bottom of the shell body, and a discharge assembly is fixedly installed at the bottom of the discharge port, which is convenient for the discharge assembly to control the discharge of the exhaust gas treatment liquid after multi-stage filtration of the device; a filter plate slot is provided on one side of the middle of the shell body, and two filter plate assemblies are arranged inside the filter plate slot, which is convenient for the two filter plate assemblies to perform second-stage and third-stage filtration on the exhaust gas treatment liquid, and more fine impurities are filtered through multi-stage filtration. Filter out to avoid the influence of impurities inside the exhaust treatment liquid on its use. The "W"-shaped structure of the filter mesh cross section facilitates the formation of grooves on the filter mesh surface, which facilitates the filter mesh to perform primary filtration on the exhaust treatment liquid and filter out larger particles of impurities inside the exhaust treatment liquid. The larger particles of impurities filtered out by the filter mesh can be gathered inside the grooves, thereby increasing the amount of impurities that the filter mesh can accommodate and reducing the frequency of cleaning the filter mesh. Several magnetic blocks are fixedly installed on the top of the setting ring. The fixing ring is made of stainless steel, which facilitates the fixing of the filter mesh on the top of the inner side of the shell and the disassembly of the filter mesh for cleaning.

[0008] Furthermore, the cover body is fixedly connected to the top opening, a sliding rod is inserted into the middle of the cover body, a button is fixedly installed on the top of the sliding rod, a knocking spring is fixedly installed on the bottom of the button, the knocking spring is sleeved on the outside of the sliding rod, and the bottom of the knocking spring is fixedly connected to the cover body.

[0009] The beneficial effect of adopting the above further scheme is that the knocking spring is arranged on the outside of the sliding rod, and the bottom of the knocking spring is fixedly connected to the cover body, so that it is convenient to press the button to make the sliding rod slide downward, and when the button is released, the knocking spring can drive the sliding rod to slide upward quickly.

[0010] Furthermore, the bottom end of the sliding rod is inserted into the sliding ring, and the sliding rod is slidably connected to the sliding ring. A knock hammer is fixedly installed at the bottom of the sliding rod, and the knock hammer is arranged at the bottom of the sliding ring.

[0011] The beneficial effect of adopting the above-mentioned further scheme is that a knocking hammer is fixedly installed at the bottom of the sliding rod, and the knocking hammer is arranged at the bottom of the sliding ring, so that when the button is loosened, the upward sliding of the sliding rod drives the knocking hammer to knock on the bottom of the sliding ring, thereby driving the filter screen to vibrate, and shaking the impurities stuck on the mesh of the filter screen into the inside of the groove, thereby restoring the filtering capacity of the filter screen.

[0012] Furthermore, the filter assembly includes a mounting block, a secondary filter is fixedly mounted on one side of the mounting block, a fixing groove is provided in the middle of the inner side of the shell, the secondary filter is engaged with the fixing groove, and the mounting block is inserted into the filter slot.

[0013] The beneficial effect of adopting the above further scheme is that by engaging the secondary filter plate with the fixing groove and inserting the mounting block into the filter plate slot, the secondary filter plate can be firmly fixed inside the shell, and the two secondary filter plates can further filter the exhaust gas treatment liquid after the first level of filtration of the filter net to remove finer impurities.

[0014] Furthermore, a sealing block is provided at the connection between the installation block and the secondary filter, and a sealing interface is fixedly installed on one side inside the filter slot, and the sealing interface is fitted with the sealing block.

[0015] The beneficial effect of adopting the above further solution is that, by fitting the sealing interface with the sealing block, it is convenient to improve the sealing performance of the connection between the filter assembly and the housing, thereby avoiding leakage of the exhaust gas treatment liquid during use of the device.

[0016] Furthermore, sliding blocks are slidably connected inside the two ends of the mounting block, a clamping block is fixedly installed on one side of the sliding block, the clamping block is arranged on the outside of the mounting block, and clamping grooves are opened at both ends of the inner side of the filter slot, and the clamping block is clamped and connected with the clamping grooves.

[0017] The beneficial effect of adopting the above further solution is that the card slots are provided at both ends of the inner side of the filter slot, and the card blocks are engaged with the card slots, so that the filter assembly can be fixedly installed inside the filter slot.

[0018] Furthermore, a return spring is fixedly mounted on one side of the sliding block away from the clamping block, and a push block is fixedly mounted on one end of the sliding block, and the push block is arranged outside the mounting block.

[0019] The beneficial effect of adopting the above further scheme is that a push block is fixedly installed at one end of the sliding block, and the push block is arranged on the outside of the mounting block, which is convenient for pushing the push block to make the card block and the card slot fall off, thereby facilitating the disassembly of the filter assembly and the cleaning of the secondary filter.

[0020] Furthermore, an anti-slip groove is provided on the outer side of the push block.

[0021] The beneficial effect of adopting the above further solution is that, by providing an anti-slip groove on the outer side of the push block, the friction force of the push block is improved, and the push block can be pushed more labor-savingly.

[0022] Furthermore, the feed assembly includes a first control valve, a mounting flange is fixedly mounted on one side of the first control valve, and a first control handle is provided on the top of the first control valve.

[0023] The beneficial effect of adopting the above-mentioned further scheme is that a mounting flange is fixedly installed on one side of the first control valve, and a first control handle is provided on the top of the first control valve, so that the mounting flange can be used to fix the device on the storage tank, and the first control handle can be used to control the exhaust gas treatment liquid flowing into the device through the first control valve, so that the first control valve can be closed when the filter screen and the secondary filter plate are cleaned.

[0024] Furthermore, the discharge assembly includes a second control valve, a second control handle is provided on one side of the second control valve, and a discharge pipe is provided at the bottom of the second control valve.

[0025] The beneficial effect of adopting the above further scheme is that a second control handle is provided on one side of the second control valve, and a discharge pipe is provided at the bottom of the second control valve, so that the second control handle can control the discharge of the exhaust treatment liquid after filtering by the device from the discharge pipe by the second control valve.

[0026] The beneficial effects of the utility model are as follows: the utility model obtains a tail gas treatment liquid multi-stage filtering device through the above-mentioned design, and the tail gas treatment liquid multi-stage filtering device is provided with a feed port through one side of the top of the shell body, and a feed component is fixedly installed on one side of the feed port, which is convenient for the feed component to be fixedly connected with the storage tank, and convenient for the feed component to control the tail gas treatment liquid to enter the device, and a discharge port is provided through the bottom of the shell body, and a discharge component is fixedly installed at the bottom of the discharge port, which is convenient for the discharge component to control the discharge of the tail gas treatment liquid that has passed the multi-stage filtration of the device, and a filter plate slot is provided through one side of the middle of the shell body, and two filter plate assemblies are arranged inside the filter plate slot, which is convenient for the two filter plate assemblies to perform second-stage and third-stage filtration on the tail gas treatment liquid, and multi-stage filtration to remove finer impurities. In addition, to avoid the influence of impurities inside the exhaust treatment liquid on its use, the "W"-shaped structure of the cross-section of the filter screen is convenient for forming grooves on the surface of the filter screen, which is convenient for the filter screen to perform primary filtration on the exhaust treatment liquid and filter out larger particles of impurities inside the exhaust treatment liquid. The larger particles of impurities filtered out by the filter screen can be gathered inside the groove, thereby increasing the amount of impurities that the filter screen can accommodate and reducing the frequency of cleaning the filter screen. A number of magnetic blocks are fixedly installed on the top of the setting ring, and the fixing ring is made of stainless steel, which is convenient for fixing the filter screen on the top of the inner side of the shell and for disassembling the filter screen for cleaning. The utility model can perform multi-stage filtration on the exhaust treatment liquid and can quickly restore the filtering capacity, and has high practical value. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0028] Figure 1 A three-dimensional structural schematic diagram of a multi-stage filtration device for tail gas treatment liquid provided by the utility model;

[0029] Figure 2 A cutaway view of the housing provided by the utility model;

[0030] Figure 3 A schematic diagram of the three-dimensional structure of the top cover provided by the utility model;

[0031] Figure 4 A cross-sectional view of a filter screen provided by the utility model;

[0032] Figure 5 A three-dimensional structural schematic diagram of the filter assembly provided by the utility model;

[0033] Figure 6 This is a three-dimensional structural schematic diagram of the sliding block provided by the utility model.

[0034] In the figure: 101, shell; 10101, shell; 10102, top opening; 10103, feed port; 10104, discharge port; 10105, filter slot; 10106, sealing interface; 10107, card slot; 10108, fixing slot; 10109, erection ring; 10110, magnetic block; 102, top cover; 10201, cover body; 10202, filter screen; 10203, sliding ring; 10204, fixing ring; 10205, sliding rod; 10206, button; 10207, card slot; 10108, fixing slot; 10109, erection ring; 10110, magnetic block; 10208, top cover; 10209, cover body; 10201, cover body; 10202, filter screen; 10203, sliding ring; 10204, fixing ring; 10205, sliding rod; 10206, button; 10207, card slot; 10108, fixing slot; 10109, mounting ring; 10110, magnetic block; 10208, card slot; 10209, fixing ring; 10209, mounting ring; 10201, cover body; 10202, filter screen; 10203, sliding ring; 10204, fixing ring; 10205, sliding rod; 10206, button; 10207, card slot; 10108, fixing slot; 10109, mounting ring; 10110, magnetic block; 10208, card slot; 10109, card slot; 10110, magnetic block; 10209, card slot; 101 207, knock spring; 103, feed assembly; 10301, first control valve; 10302, mounting flange; 10303, first control handle; 104, discharge assembly; 10401, second control valve; 10402, discharge pipe; 10403, second control handle; 105, filter assembly; 10501, mounting block; 10502, secondary filter; 10503, sealing block; 10504, push block; 10505, clamping block; 10506, sliding block; 10507, reset spring. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solution and advantages of the implementation of the utility model clearer, the technical solution in the implementation of the utility model will be clearly and completely described below in conjunction with the drawings in the implementation of the utility model. Obviously, the described implementation is a part of the implementation of the utility model, not all of the implementations. Based on the implementation of the utility model, all other implementations obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0036] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present invention.

[0037] Embodiment 1 of the utility model of a multi-stage filtering device for tail gas treatment liquid

[0038] The utility model provides the following technical solutions: Figure 1-Figure 4As shown, a multi-stage filtering device for tail gas treatment liquid includes a shell 101, and the shell 101 includes a shell 10101, a top opening 10102 is opened on the top of the shell 10101, and a top cover 102 is arranged on the top of the top opening 10102, a feed port 10103 is opened on one side of the top of the shell 10101, and a feed component 103 is fixedly installed on one side of the feed port 10103, through the feed port 10103 is opened on one side of the top of the shell 10101, and the feed component 103 is fixedly installed on one side of the feed port 10103, so that the feed component 103 is conveniently connected to the storage tank, and the feed component 103 is convenient to control the tail gas treatment liquid to enter the device, and a discharge port 10104 is opened at the bottom of the shell 10101, and the bottom of the discharge port 10104 is fixed A material discharge assembly 104 is fixedly installed, a material discharge port 10104 is opened at the bottom of the shell 10101, and a material discharge assembly 104 is fixedly installed at the bottom of the material discharge port 10104, so that the material discharge assembly 104 can control the discharge of the exhaust gas treatment liquid after multi-stage filtration of the device. A filter sheet slot 10105 is provided on one side of the middle of the shell 10101, and two filter sheet assemblies 105 are arranged inside the filter sheet slot 10105. A filter sheet slot 10105 is provided on one side of the middle of the shell 10101, and two filter sheet assemblies 105 are arranged inside the filter sheet slot 10105, so that the two filter sheet assemblies 105 can perform second-stage and third-stage filtration on the exhaust gas treatment liquid, and multi-stage filtration and removal of finer impurities can be performed to avoid the impurities inside the exhaust gas treatment liquid from affecting the use The top cover 102 includes a cover body 10201 and a filter 10202. The cross section of the filter 10202 is in a "W"-shaped structure. The cross section of the filter 10202 is in a "W"-shaped structure, so that a groove is formed on the surface of the filter 10202, so that the filter 10202 can filter the exhaust gas treatment liquid at the first level and filter the larger particles of impurities in the exhaust gas treatment liquid. The larger particles of impurities filtered by the filter 10202 can be gathered inside the groove, thereby increasing the amount of impurities that the filter 10202 can accommodate, and can reduce the frequency of cleaning the filter 10202. A fixing ring 10204 is fixedly installed on the outside of the filter 10202, and a sliding ring 10203 is fixedly installed on the middle part of the inner side of the filter 10202. The housing 10 A mounting ring 10109 is fixedly installed on the top of the inner side of 101, a fixing ring 10204 is mounted on the top of the mounting ring 10109, a plurality of magnetic blocks 10110 are fixedly installed on the top of the mounting ring 10109, and the fixing ring 10204 is made of stainless steel. A plurality of magnetic blocks 10110 are fixedly installed on the top of the mounting ring 10109, and the fixing ring 10204 is made of stainless steel, which is convenient for fixing the filter 10202 on the top of the inner side of the shell 10101, and convenient for disassembling the filter 10202 for cleaning. The cover body 10201 is fixedly connected to the top opening 10102, a sliding rod 10205 is inserted in the middle of the cover body 10201, and a button 10206 is fixedly installed on the top of the sliding rod 10205.A knock spring 10207 is fixedly installed at the bottom of the button 10206, and the knock spring 10207 is sleeved on the outside of the sliding rod 10205, and the bottom of the knock spring 10207 is fixedly connected to the cover body 10201. By sleeved on the outside of the sliding rod 10205 by the knock spring 10207, and the bottom of the knock spring 10207 is fixedly connected to the cover body 10201, it is convenient to press the button 10206 to make the sliding rod 10205 slide downward. When the button 10206 is released, the knock spring 10207 can drive the sliding rod 10205 to slide upward quickly. The bottom end of the sliding rod 10205 is inserted and arranged on the sliding ring 102 03, and the sliding rod 10205 is slidably connected with the sliding ring 10203, and a knocking hammer is fixedly installed at the bottom of the sliding rod 10205, and the knocking hammer is set at the bottom of the sliding ring 10203, so that when the button 10206 is loosened, the sliding rod 10205 slides upward to drive the knocking hammer to knock the bottom of the sliding ring 10203, thereby driving the filter 10202 to vibrate, and the impurities stuck on the mesh of the filter 10202 are shaken off to the inside of the groove, thereby restoring the filtering capacity of the filter 10202.

[0039] Embodiment 2 of the utility model of a multi-stage filtering device for tail gas treatment liquid

[0040] Reference Figure 1-Figure 6As shown, the filter assembly 105 includes a mounting block 10501, a secondary filter 10502 is fixedly mounted on one side of the mounting block 10501, a fixing groove 10108 is provided in the middle of the inner side of the housing 10101, the secondary filter 10502 is engaged with the fixing groove 10108, and the mounting block 10501 is inserted into the filter slot 10105. By engaging the secondary filter 10502 with the fixing groove 10108, the mounting block 10501 is inserted into the filter slot 10105, so that the secondary filter 10502 can be firmly fixedly mounted in the housing 10101, and the two secondary filters 10502 can be conveniently aligned with each other after passing through. The exhaust gas treatment liquid after the first-stage filtration of the filter 10202 is further filtered to filter out finer impurities. A sealing block 10503 is provided at the connection between the mounting block 10501 and the secondary filter 10502. A sealing interface 10106 is fixedly installed on one side of the filter slot 10105. The sealing interface 10106 fits with the sealing block 10503. The sealing interface 10106 fits with the sealing block 10503 to improve the sealing performance of the connection between the filter assembly 105 and the housing 101, thereby preventing the exhaust gas treatment liquid from leaking during the use of the device. The sliding blocks 105 are slidably connected to the two ends of the mounting block 10501. 06, a block 10505 is fixedly installed on one side of the sliding block 10506, and the block 10505 is arranged on the outside of the mounting block 10501. Slots 10107 are provided at both ends of the inner side of the filter slot 10105, and the block 10505 is engaged with the slot 10107. The slots 10107 are provided at both ends of the inner side of the filter slot 10105, and the block 10505 is engaged with the slot 10107, so that the filter assembly 105 is fixedly installed inside the filter slot 10105. A reset spring 10507 is fixedly installed on the side of the sliding block 10506 away from the block 10505, and one end of the sliding block 10506 is fixed A push block 10504 is installed, and the push block 10504 is arranged on the outside of the mounting block 10501. The push block 10504 is fixedly installed at one end of the sliding block 10506. The push block 10504 is arranged on the outside of the mounting block 10501, which is convenient for pushing the push block 10504 to make the card block 10505 and the card slot 10107 fall off, thereby facilitating the disassembly of the filter assembly 105 and the cleaning of the secondary filter 10502. An anti-slip groove is provided on the outside of the push block 10504. By providing the anti-slip groove on the outside of the push block 10504, the friction of the push block 10504 can be improved, and the push block 10504 can be pushed more labor-savingly.

[0041] Embodiment 3 of a multi-stage filtration device for tail gas treatment liquid of the utility model

[0042] Reference Figure 1As shown, the feed assembly 103 includes a first control valve 10301, a mounting flange 10302 is fixedly installed on one side of the first control valve 10301, and a first control handle 10303 is provided on the top of the first control valve 10301. The mounting flange 10302 is fixedly installed on one side of the first control valve 10301, and the first control handle 10303 is provided on the top of the first control valve 10301, so that the mounting flange 10302 can be used to fix the device on the storage tank, and the first control handle 10303 can make the first control valve 10301 control the exhaust gas treatment liquid flowing into the device, so that the filter 102 can be adjusted. 02 and the secondary filter plate 10502 are cleaned, the first control valve 10301 is closed, and the discharge assembly 104 includes a second control valve 10401, a second control handle 10403 is provided on one side of the second control valve 10401, and a discharge pipe 10402 is provided at the bottom of the second control valve 10401. The second control handle 10403 is provided on one side of the second control valve 10401, and the discharge pipe 10402 is provided at the bottom of the second control valve 10401, so that the second control handle 10403 enables the second control valve 10401 to control the discharge of the exhaust treatment liquid after filtration by the device from the discharge pipe 10402.

[0043] Specifically, the working principle of the exhaust gas treatment liquid multi-stage filtering device is as follows: when in use, a mounting flange 10302 is fixedly installed on one side of the first control valve 10301, and a first control handle 10303 is provided on the top of the first control valve 10301, so that the mounting flange 10302 can be used to fix the device on the storage tank, so that the first control handle 10303 can make the first control valve 10301 control the exhaust gas treatment liquid flowing into the device, and the first control valve 10301 can be closed when the filter screen 10202 and the secondary filter sheet 10502 are cleaned, and the "W"-shaped cross-section of the filter screen 10202 can form a groove on the surface of the filter screen 10202, so that the filter screen 10202 can clean the exhaust gas treatment liquid. The first-level filtration filters out larger particles of impurities in the exhaust treatment liquid. The larger particles of impurities filtered out by the filter 10202 can be gathered inside the groove, which increases the amount of impurities that the filter 10202 can accommodate, and can reduce the frequency of cleaning the filter 10202. A plurality of magnetic blocks 10110 are fixedly installed on the top of the mounting ring 10109. The fixing ring 10204 is made of stainless steel, which is convenient for fixing the filter 10202 on the top of the inner side of the shell 10101, and for disassembling the filter 10202 for cleaning. The knocking spring 10207 is sleeved on the outside of the sliding rod 10205, and the bottom of the knocking spring 10207 is fixedly connected to the cover body 10201, which is convenient for pressing the button 10206 to slide The movable rod 10205 slides downward, and when the button 10206 is released, the knocking spring 10207 can drive the sliding rod 10205 to slide upward quickly. A knocking hammer is fixedly installed at the bottom of the sliding rod 10205, and the knocking hammer is arranged at the bottom of the sliding ring 10203, so that when the button 10206 is loosened, the sliding upward of the sliding rod 10205 drives the knocking hammer to knock on the bottom of the sliding ring 10203, thereby driving the filter screen 10202 to vibrate, and the impurities stuck on the mesh of the filter screen 10202 are shaken off into the groove, thereby restoring the filtering capacity of the filter screen 10202, and the card slots 10107 are opened at both ends of the inner side of the filter plate slot 10105, and the card block 10505 is engaged with the card slot 10107, which is convenient for the filter plate assembly 10 5 is fixedly installed inside the filter sheet slot 10105, and is fitted with the sealing block 10503 through the sealing interface 10106, so as to improve the sealing performance of the connection between the filter sheet assembly 105 and the housing 101, and avoid leakage of the exhaust gas treatment liquid during the use of the device. The secondary filter sheet 10502 is engaged with the fixing groove 10108, and the mounting block 10501 is inserted into the filter sheet slot 10105, so as to facilitate the secondary filter sheet 10502 to be firmly fixedly installed inside the housing 10101, so as to facilitate the two secondary filter sheets 10502 to further filter the exhaust gas treatment liquid after the primary filtration of the filter net 10202, and filter out finer impurities. A push block 10504 is fixedly installed at one end of the sliding block 10506.The push block 10504 is arranged outside the mounting block 10501, so that the push block 10504 can be pushed to make the clamping block 10505 fall off from the clamping slot 10107, so as to facilitate the disassembly of the filter assembly 105 and the cleaning of the secondary filter 10502. A second control handle 10403 is arranged on one side of the second control valve 10401, and a discharge pipe 10402 is arranged at the bottom of the second control valve 10401, so that the second control handle 10403 can control the discharge of the exhaust treatment liquid filtered by the device from the discharge pipe 10402 by the second control valve 10401.

[0044] The above description is only the preferred implementation of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. 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 multi-stage filtration device for tail gas treatment liquid, characterized in that: The invention comprises an outer shell (101), wherein the outer shell (101) comprises a shell (10101), wherein a top opening (10102) is provided at the top of the shell (10101), wherein a top cover (102) is provided at the top of the top opening (10102), wherein a feed port (10103) is provided at one side of the top of the shell (10101), wherein a feed assembly (103) is fixedly installed at one side of the feed port (10103), wherein a discharge port (10104) is provided at the bottom of the shell (10101), wherein a discharge assembly (104) is fixedly installed at the bottom of the discharge port (10104), wherein a filter plate slot (10105) is provided at one side of the middle part of the shell (10101), wherein the filter plate slot (10105) has a filter element inside. Two filter plate assemblies (105) are provided, the top cover (102) comprises a cover body (10201) and a filter screen (10202), the cross section of the filter screen (10202) is in a "W"-shaped structure, a fixing ring (10204) is fixedly installed on the outside of the filter screen (10202), a sliding ring (10203) is fixedly installed on the middle part of the inside of the filter screen (10202), a mounting ring (10109) is fixedly installed on the top of the inner side of the shell (10101), the fixing ring (10204) is mounted on the top of the mounting ring (10109), a plurality of magnetic blocks (10110) are fixedly installed on the top of the mounting ring (10109), and the fixing ring (10204) is made of stainless steel.

2. The tail gas treatment liquid multi-stage filtering equipment according to claim 1, characterized in that: The cover body (10201) is fixedly connected to the top opening (10102), a sliding rod (10205) is inserted into the middle of the cover body (10201), a button (10206) is fixedly installed on the top of the sliding rod (10205), and a knock spring (10207) is fixedly installed on the bottom of the button (10206), the knock spring (10207) is sleeved on the outside of the sliding rod (10205), and the bottom of the knock spring (10207) is fixedly connected to the cover body (10201).

3. The tail gas treatment liquid multi-stage filtering equipment according to claim 2, characterized in that: The bottom end of the sliding rod (10205) is inserted into the sliding ring (10203), and the sliding rod (10205) is slidably connected to the sliding ring (10203). A knocking hammer is fixedly installed at the bottom of the sliding rod (10205), and the knocking hammer is arranged at the bottom of the sliding ring (10203).

4. The tail gas treatment liquid multi-stage filtering equipment according to claim 1, characterized in that: The filter assembly (105) comprises a mounting block (10501), a secondary filter (10502) being fixedly mounted on one side of the mounting block (10501), a fixing groove (10108) being provided in the middle of the inner side of the shell (10101), the secondary filter (10502) being engaged with the fixing groove (10108), and the mounting block (10501) being inserted into the filter slot (10105).

5. The tail gas treatment liquid multi-stage filtering equipment according to claim 4, characterized in that: A sealing block (10503) is provided at the connection between the mounting block (10501) and the secondary filter (10502), and a sealing interface (10106) is fixedly installed on one side of the inside of the filter slot (10105), and the sealing interface (10106) is fitted with the sealing block (10503).

6. The tail gas treatment liquid multi-stage filtering equipment according to claim 5, characterized in that: Sliding blocks (10506) are slidably connected internally at both ends of the mounting block (10501), a clamping block (10505) is fixedly installed on one side of the sliding block (10506), the clamping block (10505) is arranged on the outside of the mounting block (10501), and clamping grooves (10107) are provided at both ends of the inner side of the filter plate slot (10105), and the clamping block (10505) is clamped and connected with the clamping groove (10107).

7. The tail gas treatment liquid multi-stage filtering equipment according to claim 6, characterized in that: A return spring (10507) is fixedly installed on the side of the sliding block (10506) away from the clamping block (10505), and a push block (10504) is fixedly installed on one end of the sliding block (10506), and the push block (10504) is arranged on the outside of the mounting block (10501).

8. The tail gas treatment liquid multi-stage filtering equipment according to claim 7, characterized in that: The outer side of the push block (10504) is provided with an anti-slip groove.

9. The tail gas treatment liquid multi-stage filtering equipment according to claim 1, characterized in that: The feed assembly (103) comprises a first control valve (10301), a mounting flange (10302) is fixedly mounted on one side of the first control valve (10301), and a first control handle (10303) is disposed on the top of the first control valve (10301).

10. The tail gas treatment liquid multi-stage filtering equipment according to claim 1, characterized in that: The material discharge assembly (104) comprises a second control valve (10401), a second control handle (10403) is provided on one side of the second control valve (10401), and a material discharge pipe (10402) is provided at the bottom of the second control valve (10401).

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