A calcination tail gas treatment device for preparing manganese pyrophosphate

Abstract

The present invention relates to the field of tail gas treatment, and in particular to a calcination tail gas treatment device for preparing manganese pyrophosphate, including a fixing frame and a shell, etc.; the fixing frame is provided with a shell. The present invention realizes the isolation of the filter cloth in the protective cavity by a baffle, avoids the contact between the acidic gas and the filter cloth in the protective cavity, avoids the long-term use of a single filter cloth causing a serious decrease in its life span, and prolongs the service life of the device. The scraper bar scrapes off the raw material dust on the lower side of the filter cloth during its rotation, and then collects it in each collection box, thereby improving the filtering effect of the device and facilitating the reuse of the raw material dust by the workers in the later stage. The electric slide plate continuously moves upward to lift the heat conduction plate upward to fit the filter cloth, and the heat absorbed by the heat conduction plate is used to dry the filter cloth to prevent moisture from affecting the screening effect of the filter cloth. The filter cloth is squeezed by the top column for multiple times to deform under the force, and the raw material dust adhering to the lower side of the filter cloth is scraped off and shaken off in cooperation with the scraper bar, thereby further improving the cleaning effect of the filter cloth by the device.

Description

Technical Field

[0001] The invention relates to the field of tail gas treatment, and in particular to a calcination tail gas treatment device for preparing manganese pyrophosphate. Background Art

[0002] The prior art prepares manganese pyrophosphate powder by mixing pyrophosphate and manganese oxide powders into granules and then calcining them at high temperature. Since the pyrophosphate and manganese oxide powders have small particle sizes, the pyrophosphate and manganese oxide powders break during the calcination process, causing the unreacted pyrophosphate and manganese oxide powders to float inside the calcination device. The prior art intercepts the dust by spraying liquid, which easily causes the pyrophosphate and manganese oxide powders to absorb excessive water and deteriorate, resulting in the unreacted pyrophosphate and manganese oxide powders being unable to be recycled, resulting in a waste of resources.

[0003] At the same time, acidic gases are also produced during the calcination process. In the process of dust interception, the long-term use of the same interception device causes itself to be corroded and damaged, and then loses the ability to intercept dust. The interception device needs to be manually removed and replaced, and the process is extremely cumbersome. Summary of the invention

[0004] In order to overcome the shortcomings of the existing device that the unreacted raw materials in the calcined manganese pyrophosphate powder easily absorb water and deteriorate and cannot be recycled, and the generation of acidic gas easily makes the dust interception device lose its effect, the present invention provides a calcination tail gas treatment device for preparing manganese pyrophosphate.

[0005] The technical implementation scheme of the present invention is: a calcination tail gas treatment device for preparing manganese pyrophosphate, comprising a fixing frame, a shell and a frame; the fixing frame is provided with a shell; an air outlet is provided on the upper side of the shell to communicate with the outside; the shell is provided with an air inlet; the air inlet is communicated with the tail gas outlet of the calcination device; a plurality of frames are installed inside the shell, and the frames are made of anti-corrosion metal material; each frame is provided with a diffuser; baffles, filter cloth, collection components and cleaning system are also included; each frame is slidably connected with a plurality of baffles; the baffles are made of anti-corrosion material, and the baffles are made of Elastic deformation material; a dust intercepting filter cloth is installed between every two adjacent baffles, and the filter cloth is made of soft breathable material; a protective cavity is opened inside each frame; the baffle and the filter cloth slide in the protective cavity; the baffle and the filter cloth are connected through an external transmission device; the baffle and the filter cloth are driven to rotate clockwise in the protective cavity through the external transmission device, and the filter cloth located on the lower side of the frame is rotated to the inside of the upper side of the frame; a number of collection components for collecting raw material dust and metal dust are arranged on the lower side of each frame; each frame is connected to a cleaning system that extends the service life of the device.

[0006] In addition, it is particularly preferred that the collecting assembly includes a collecting box and a scraper bar; a plurality of collecting boxes are slidably connected to the lower side of each frame; the front side of each collecting box penetrates the shell; and a plurality of scraper bars for scraping off raw material dust and metal dust on the lower side of the filter cloth are rotatably connected to the inner side of each collecting box.

[0007] Furthermore, it is particularly preferred that each storage box is configured in the shape of an inverted triangular column.

[0008] In addition, it is particularly preferred that the cleaning system includes a drain board and an electric skateboard; a plurality of drain boards are fixedly connected to the shell body to prevent acidic solution from remaining on the surface of the filter cloth, and each drain board is connected to an external water pumping device through a pipe; each drain board is located on the upper side of an adjacent frame; a plurality of drainage grooves are provided on the inner side of each drain board; a plurality of through grooves are provided on the upper side of the frame, and each drainage groove penetrates the through groove on the adjacent frame and contacts the filter cloth; an electric skateboard is slidably connected to the inner side of each frame; and a plurality of exhaust ports are provided on each electric skateboard.

[0009] In addition, it is particularly preferred that the cleaning system also includes a heat conducting plate; a heat conducting plate is slidably connected inside each frame to prevent the filter cloth from getting wet, and the heat conducting plate is made of a metal material with high thermal conductivity and acid resistance; each heat conducting plate is located above an adjacent electric skateboard.

[0010] In addition, it is particularly preferred that it also includes a top column; a plurality of top columns are fixedly connected to the lower side of each electric slide to prevent raw material dust from absorbing water and adhering to the filter cloth; each top column is located above the debris collection box.

[0011] In addition, it is particularly preferred that it also includes a pressure plate and a collection box; a plurality of pressure plates are fixedly connected to the lower side of each drain plate to prevent residual moisture in the filter cloth; a plurality of second liquid outlets are opened on each pressure plate; a plurality of drainage outlets are opened on the rear side of the shell; a plurality of first liquid outlets are opened on the rear side of each drain plate; each first liquid outlet is connected with the adjacent drainage outlet through the rear side of the frame; a plurality of drainage grooves are opened on the rear side of each drain plate; a plurality of collection boxes are fixedly connected to the rear side of the shell, and the inner bottom of each collection box is set as an inclined surface; each collection box is connected to an external collection device through a pipeline; each collection box is connected with an adjacent drainage outlet.

[0012] Furthermore, it is particularly preferred that each pressing plate is configured in the shape of a triangular prism with a height gradually decreasing from front to back.

[0013] Furthermore, it is particularly preferred that the second liquid outlet on each pressing plate is provided with a one-way membrane, and the one-way membrane is opened toward the upper side.

[0014] Furthermore, it is particularly preferred that the lower side of each top column is configured to be spherical.

[0015] Beneficial effects: The present invention isolates the filter cloth in the protective cavity by the baffle plate, thereby preventing the acid gas from contacting the filter cloth in the protective cavity, thereby preventing the long-term use of a single filter cloth from causing a serious reduction in its life span, and extending the service life of the device;

[0016] The scraper scrapes the raw material dust on the lower side of the filter cloth during its rotation and collects it in each collecting box, which improves the filtering effect of the device and facilitates the reuse of raw material dust by workers in the later stage.

[0017] The electric slide plate is continuously moved upward to lift the heat conducting plate upward to fit the filter cloth, and the heat absorbed by the heat conducting plate is used to dry the filter cloth to prevent moisture from affecting the screening effect of the filter cloth.

[0018] The top column squeezes the filter cloth multiple times to cause it to deform, and the scraper bar scrapes off the raw material dust adhering to the bottom of the filter cloth, further improving the cleaning effect of the device on the filter cloth. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the first stereoscopic structure of the calcination tail gas treatment device for preparing manganese pyrophosphate of the present invention;

[0020] Figure 2 is a cross-sectional view of a housing of the present invention;

[0021] Figure 3 It is a schematic diagram of a second stereoscopic structure of a calcination tail gas treatment device for preparing manganese pyrophosphate according to the present invention;

[0022] Figure 4 It is a schematic diagram of the three-dimensional structure of the frame, baffle and filter cloth combination of the present invention;

[0023] Figure 5 is a cross-sectional view of the frame of the present invention;

[0024] Figure 6 It is a schematic diagram of the three-dimensional structure of the water pipe of the present invention;

[0025] Figure 7 It is a cross-sectional view of the frame and water pipe combination of the present invention;

[0026] Figure 8 It is a schematic diagram of the three-dimensional structure of the frame and the heat sink assembly of the present invention;

[0027] Fig. 9 It is a schematic diagram of the structure of the pressing plate body of the present invention;

[0028] Fig.10 It is a schematic diagram of the combined three-dimensional structure of the pressing plate and the collecting box of the present invention;

[0029] Fig.11 For the present invention Fig.10 A magnified image of the area in the middle.

[0030] In the figure: 1-fixed frame, 2-shell, 2001-air inlet, 2002-drainage outlet, 3-frame, 3001-protective cavity, 3002-air dispersion outlet, 4-baffle, 5-filter cloth, 101-collection box, 102-scraper, 201-drainage board, 20101-drainage trough, 20102-first liquid outlet, 202-heat conduction plate, 203-electric skateboard, 20301-exhaust port, 204-top column, 301-pressing plate, 30101-second liquid outlet, 302-collection box. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical scheme and advantages of the present invention clearer, the present invention is further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the present invention. In addition, in the following description, the description of well-known structures and technologies is omitted to avoid unnecessary confusion of the concept of the present invention. Example 1

[0032] like Figure 2-Figure 5 As shown, a calcination tail gas treatment device for preparing manganese pyrophosphate includes a fixing frame 1, a shell 2 and a frame 3; the fixing frame 1 is provided with the shell 2; an air outlet is provided on the upper side of the shell 2 to communicate with the outside; an air inlet 2001 is provided at the lower right side of the shell 2; the air inlet 2001 is communicated with the tail gas outlet of the calcination device; a plurality of frames 3 are installed inside the shell 2, and the frames 3 are made of anti-corrosion metal material; each frame 3 is provided with a diffuser 3002;

[0033] It also includes a baffle 4, a filter cloth 5, a collecting component and a cleaning system; each frame 3 is slidably connected with a plurality of baffles 4; the baffle 4 is made of an anti-corrosion material, and the baffle 4 is made of an elastic deformation material; a filter cloth 5 is installed between each two adjacent baffles 4, and the filter cloth 5 is made of a soft breathable material; a protective cavity 3001 is opened inside each frame 3; the baffle 4 and the filter cloth 5 both slide in the protective cavity 3001; the baffle 4 and the filter cloth 5 are connected through an external transmission device; the baffle 4 and the filter cloth 5 are driven by the external transmission device to rotate clockwise in the protective cavity 3001, and the filter cloth 5 located on the lower side of the frame 3 is rotated to the inside of the upper side of the frame 3; a plurality of collecting components are arranged on the lower side of each frame 3; and a cleaning system is connected to each frame 3.

[0034] The collecting assembly includes a collection box 101 and a scraper 102; a plurality of collection boxes 101 are slidably connected to the lower side of each frame 3; the front side of each collection box 101 penetrates the shell 2; and a plurality of scrapers 102 are rotatably connected to the inner side of each collection box 101.

[0035] Each impurity collecting box 101 is configured in an inverted triangular column shape, and the exhaust gas is guided to flow toward the filter cloth 5 through the impurity collecting box 101 , thereby improving the effect of the filter cloth 5 in filtering gas and impurities, and allowing the exhaust gas to enter the frame 3 more evenly.

[0036] Before calcining to produce manganese pyrophosphate, pyrophosphate and manganese oxide powders are added, mixed and stirred, and then granulated and placed in a calcining device for high-temperature sintering. In this process, due to the small particle size of the two powders, they are prone to cracking after granulation and calcination, causing the raw material particles to float upward to form dust. At the same time, tail gas is generated during the calcination process, including a large amount of water vapor, which causes the raw material dust to absorb water and become damp and cannot be directly recycled. In order to avoid this phenomenon, after the air inlet 2001 is connected to the tail gas outlet of the calcining device, the tail gas and dust enter the shell 2 through the air inlet 2001. When the water vapor and raw material dust float upward and contact the frame 3, as shown in FIG. Figure 5 As shown, water vapor and raw material dust are screened by the frame 3 and the filter cloth 5 at the lower side of the frame 3, so that the water vapor passes through the filter cloth 5 and enters the frame 3, while the raw material dust is blocked by the filter cloth 5 and cannot enter the frame 3, thereby separating the water vapor from the raw material dust to prevent the water vapor and the raw material dust from continuously mixing during the rising process, and the water vapor entering the frame 3 is blocked by the baffle 4 and flows to the diffuser 3002, and then returns to the shell 2 through the diffuser 3002, and then rises again in the shell 2 to pass through the next frame 3 and the filter cloth 5, and finally the water vapor is discharged through the upper side of the shell 2;

[0037] It is also considered that acidic gas is easily generated during the calcination process of preparing manganese pyrophosphate, and the filter cloth 5 is easily corroded by the acidic gas during long-term use, resulting in the deterioration of the ability of the filter cloth 5 to screen water vapor and raw material dust. After the filter cloth 5 has been used for a long time, the baffle 4 and the filter cloth 5 are driven by the external transmission device to rotate clockwise in the protective cavity 3001, based on the view from the front to the back, and the filter cloth 5 located at the lower side of the frame 3 is rotated to the upper side of the frame 3, such as Figure 5As shown, the filter cloth 5 on the lower side is stored in the protective cavity 3001, and the filter cloth 5 initially located in the protective cavity 3001 is rotated to the lower side to filter water vapor and raw material dust. The filter cloth 5 in the protective cavity 3001 is isolated by the baffle 4 to prevent acidic gas from contacting the filter cloth 5 in the protective cavity 3001, thereby preventing the long-term use of a single filter cloth 5 from causing a serious decrease in its life span, and at the same time extending the service life of the device. In this process, since the raw material dust is adhered to the lower side of the filter cloth 5, in order to prevent the raw material dust from clogging the filter cloth 5, when the filter cloth 5 is rotating, the filter cloth 5 passes through multiple collection boxes 101, and the scraper bar 102 is attached to the lower side of the filter cloth 5. During the rotation of the filter cloth 5, the raw material dust on the lower side of the filter cloth 5 is scraped off multiple times by the scraper bar 102 and then collected in each collection box 101, thereby improving the filtering effect of the device. Finally, the worker holds the front side of the collection box 101 and pulls it out, thereby facilitating the reuse of the raw material dust in the later stage. Example 2

[0038] On the basis of Example 1, Figure 1 , Figure 2 , Figure 3 and Figure 9-11 As shown, the cleaning system includes a drain plate 201 and an electric slide plate 203; a plurality of drain plates 201 are fixedly connected to the shell 2, and each drain plate 201 is connected to an external water pumping device through a pipeline; each drain plate 201 is located on the upper side of an adjacent frame 3; a plurality of drainage grooves 20101 are provided on the inner side of each drain plate 201; a plurality of through grooves are provided on the upper side of the frame 3, and each drainage groove 20101 penetrates the through groove on the adjacent frame 3 and contacts the filter cloth 5; an electric slide plate 203 is slidably connected to the inner side of each frame 3; and a plurality of exhaust ports 20301 are provided on each electric slide plate 203.

[0039] The cleaning system also includes a heat conducting plate 202 ; each frame 3 is slidably connected to a heat conducting plate 202 , and the heat conducting plate 202 is made of a metal material with high thermal conductivity and acid resistance; each heat conducting plate 202 is located above the adjacent electric slide 203 .

[0040] It also includes a top column 204 ; a plurality of top columns 204 are fixedly connected to the lower side of each electric skateboard 203 ; each top column 204 is located above the sundries collection box 101 .

[0041] It also includes a pressing plate 301 and a collecting box 302; a plurality of pressing plates 301 are fixedly connected to the lower side of each drain plate 201; a plurality of second liquid outlets 30101 are provided on each pressing plate 301; a plurality of liquid discharge outlets 2002 are provided on the rear side of the shell 2; a plurality of first liquid discharge outlets 20102 are provided on the rear side of each drain plate 201; each first liquid outlet 20102 is connected with the adjacent liquid discharge outlet 2002 through the rear side of the frame 3; a plurality of drainage grooves 20101 are provided on the rear side of each drain plate 201; a plurality of collecting boxes 302 are fixedly connected to the rear side of the shell 2, and the inner bottom of each collecting box 302 is set as an inclined surface; each collecting box 302 is connected to an external collecting device through a pipeline; each collecting box 302 is connected with the adjacent liquid discharge outlet 2002.

[0042] Each pressing plate 301 is configured in a triangular prism shape with a height gradually decreasing from the front to the back.

[0043] The second liquid outlet 30101 on each pressing plate 301 is provided with a one-way membrane, and the one-way membrane is opened upward to prevent the squeezed acid solution from flowing back to the heat conducting plate 202, thereby improving the device's processing capacity for acid solutions.

[0044] The lower side of each top column 204 is set to a spherical shape to prevent the top column 204 from piercing the filter cloth 5 and causing damage to the filter cloth 5. At the same time, the spherical contact surface is used to make the filter cloth 5 more evenly stressed, so as to better control the dust on the filter cloth 5 from falling off.

[0045] In the process of filtering water vapor and raw material dust, a small amount of water vapor is easy to soak the filter cloth 5, causing the acid gas to easily absorb water and adhere to the surface of the filter cloth 5 when passing through the filter cloth 5, thereby causing a small amount of acid solution residue to appear on the surface of the filter cloth 5. The acid solution residue on the surface of the filter cloth 5 cannot be removed by rotating and replacing the filter cloth 5 for screening through an external transmission device, resulting in a greatly reduced service life of the filter cloth 5. In the process of replacing the filter cloths 5 on the upper and lower sides of the frame 3, when the filter cloths 5 on the lower side are rotated to the upper inner side of the frame 3, the electric slide plate 203 is controlled to move upward, thereby lifting the heat conducting plate 202 upward. The heat conducting plate 202 and the frame 3 cooperate to isolate the upper and lower sides of the filter cloth 5, and then pump water into the drainage plate 201 through an external water pumping device. The water is sprayed out through the drainage groove 20101 and then sprayed on the filter cloth 5 to rinse it, so that the acid solution on the surface of the filter cloth 5 is thoroughly rinsed, and the service life of the filter cloth 5 is extended. The rinsed water flows to the drain port 2002 through the first liquid outlet 20102 and the rear side of the frame 3, and finally flows to the collection box 302. The inner bottom of the collection box 302 is used to guide the rinsed water to the pipe on the collection box 302, and finally flows to the collection device through the pipe for storage and collection;

[0046] It is also considered that after the filter cloth 5 is flushed, the surface of the filter cloth 5 is wet, and in the process of filtering the exhaust gas, since water vapor and acidic gas flow upward through the exhaust port 20301, they continue to contact the lower side of the heat conducting plate 202, thereby causing the heat conducting plate 202 to absorb heat. Figure 7 As shown, the heat conducting plate 202 is pressed against the lower side of the filter cloth 5, and the filter cloth 5 is dried by utilizing the heat absorbed by the heat conducting plate 202, thereby preventing the filter cloth 5 from being relatively wet after being washed. When the filter cloth 5 is rotated and switched to the upper side again, the moisture is prevented from affecting the screening effect of the filter cloth 5, and the water vapor and acid gas accumulated between the heat conducting plate 202 and the electric slide plate 203 are discharged back into the housing 2 through the air diffusion port 3002, and the water vapor and acid gas are discharged through the upper side of the housing 2;

[0047] It is also considered that, in the process of drying the filter cloth 5, it takes a long time to dry the filter cloth 5 through the heat conducting plate 202. At this time, when the heat conducting plate 202 gradually approaches the filter cloth 5, the heat conducting plate 202 pushes the filter cloth 5 to deform upward, and then the filter cloth 5 is attached to the pressing plate 301, and the filter cloth 5 is squeezed by the heat conducting plate 202 and the pressing plate 301, so that the water in the filter cloth 5 is squeezed out, and the squeezed water emerges from the second liquid outlet 30101 and flows to the left and right sides of the pressing plate 301. At the same time, the pressing plate 301 is used to guide the water flow backward and flow to the first liquid outlet 20102, and then flow to the drain port 2002 through the rear side of the frame 3, and finally the cleaned water is discharged to the collection box 302 through the drain port 2002. Avoid moisture from remaining on the pressing plate 301 and improve the self-cleaning ability of the device. It is also taken into consideration that, during the process of screening water vapor and raw material dust, a small amount of water vapor is easily adsorbed by the filter cloth 5. At this time, the raw material dust adhering to the lower side of the filter cloth 5 is easy to stick together. Therefore, after the filter cloth 5 is dried, the electric slide 203 is controlled to move downward and separate from the heat conduction plate 202. Then the electric slide 203 drives the top column 204 to move back and forth up and down and squeeze the filter cloth 5. The electric slide 203 drives the top column 204 to reciprocate and squeeze the filter cloth 5, so that the filter cloth 5 is deformed by force for many times, and the scraper bar 102 is used to scrape off the raw material dust adhering to the lower side of the filter cloth 5, thereby further improving the cleaning effect of the device on the filter cloth 5.

[0048] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit the scope of protection of the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the present invention.

Claims

1. A calcination tail gas treatment device for preparing manganese pyrophosphate, comprising a fixing frame (1), a shell (2) and a frame (3); the fixing frame (1) is provided with the shell (2); an air outlet is provided on the upper side of the shell (2) for communication with the outside; the shell (2) is provided with an air inlet (2001); the air inlet (2001) is communicated with the tail gas outlet of the calcination device; a plurality of frames (3) are installed inside the shell (2), and the frames (3) are made of corrosion-resistant metal material; each frame (3) is provided with an air diffusion port (3002); the characteristics are: The invention also comprises a baffle (4), a filter cloth (5), a collection component and a cleaning system; each frame (3) is slidably connected to a plurality of baffles (4); the baffles (4) are made of an anti-corrosion material and an elastic deformation material; a filter cloth (5) for intercepting dust is installed between each two adjacent baffles (4), and the filter cloth (5) is made of a soft breathable material; a protective cavity (3001) is provided inside each frame (3); the baffles (4) and the filter cloth (5) are both in the protective cavity The baffle plate (4) and the filter cloth (5) are connected via an external transmission device; the baffle plate (4) and the filter cloth (5) are driven by the external transmission device to rotate clockwise in the protective cavity (3001), and the filter cloth (5) located at the lower side of the frame (3) is rotated to the inside of the upper side of the frame (3); a plurality of collection components for collecting raw material dust and metal dust are arranged on the lower side of each frame (3); and a cleaning system for extending the service life of the device is connected to each frame (3).

2. A calcination tail gas treatment device for preparing manganese pyrophosphate according to claim 1, characterized in that: The collecting assembly comprises a collecting box (101) and scraping strips (102); a plurality of collecting boxes (101) are slidably connected to the lower side of each frame (3); the front side of each collecting box (101) penetrates the shell (2); and a plurality of scraping strips (102) for scraping off raw material dust and metal dust on the lower side of the filter cloth (5) are rotatably connected to the inner side of each collecting box (101).

3. A calcination tail gas treatment device for preparing manganese pyrophosphate according to claim 2, characterized in that: Each of the miscellaneous collection boxes (101) is configured in the shape of an inverted triangular column.

4. A calcination tail gas treatment device for preparing manganese pyrophosphate according to claim 2, characterized in that: The cleaning system comprises a drainage plate (201) and an electric slide plate (203); a plurality of drainage plates (201) are fixedly connected to the housing (2) for preventing acid solution from remaining on the surface of the filter cloth (5), and each drainage plate (201) is connected to an external water pump device via a pipeline; each drainage plate (201) is located on the upper side of an adjacent frame (3); a plurality of drainage grooves (20101) are provided on the inner side of each drainage plate (201); a plurality of through grooves are provided on the upper side of the frame (3), and each drainage groove (20101) penetrates through the through groove on the adjacent frame (3) and contacts the filter cloth (5); an electric slide plate (203) is slidably connected to the inner side of each frame (3); and a plurality of exhaust ports (20301) are provided on each electric slide plate (203).

5. A calcination tail gas treatment device for preparing manganese pyrophosphate according to claim 4, characterized in that: The cleaning system further comprises a heat conducting plate (202); each frame (3) is slidably connected to a heat conducting plate (202) for preventing the filter cloth (5) from getting wet, and the heat conducting plate (202) is made of a metal material with high thermal conductivity and acid resistance; each heat conducting plate (202) is located above an adjacent electric slide plate (203).

6. A calcination tail gas treatment device for preparing manganese pyrophosphate according to claim 5, characterized in that: It also includes a top column (204); a plurality of top columns (204) are fixedly connected to the lower side of each electric slide plate (203) to prevent raw material dust from absorbing water and adhering to the filter cloth (5); each top column (204) is located above the debris collection box (101).

7. A calcination tail gas treatment device for preparing manganese pyrophosphate according to claim 5, characterized in that: The invention also comprises a pressing plate (301) and a collecting box (302); a plurality of pressing plates (301) are fixedly connected to the lower side of each drainage plate (201) to prevent residual moisture in the filter cloth (5); a plurality of second liquid outlets (30101) are provided on each pressing plate (301); a plurality of liquid discharge outlets (2002) are provided on the rear side of the housing (2); a plurality of first liquid outlets (20102) are provided on the rear side of each drainage plate (201); each first liquid outlet (201 02) are connected to the adjacent drainage port (2002) through the rear side of the frame (3); a plurality of drainage grooves (20101) are provided on the rear side of each drainage board (201); a plurality of collection boxes (302) are fixedly connected to the rear side of the shell (2), and the inner bottom of each collection box (302) is arranged as an inclined surface; each collection box (302) is connected to an external collection device through a pipeline; and each collection box (302) is connected to the adjacent drainage port (2002).

8. A calcination tail gas treatment device for preparing manganese pyrophosphate according to claim 7, characterized in that: Each pressing plate (301) is configured in a triangular prism shape with a height gradually decreasing from the front to the back.

9. A calcination tail gas treatment device for preparing manganese pyrophosphate according to claim 8, characterized in that: The second liquid outlet (30101) on each pressing plate (301) is provided with a one-way membrane, and the one-way membrane is open toward the upper side.

10. A calcination tail gas treatment device for preparing manganese pyrophosphate according to claim 6, characterized in that: The lower side of each top column (204) is configured to be spherical.

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