Tail gas purification treatment device for mortar production

Abstract

The invention relates to the technical field of mortar production, in particular to a tail gas purification treatment device for mortar production, which comprises a discharge pipe, the top end of the discharge pipe is connected to mortar production equipment, a material collecting cover is arranged at the bottom end of the discharge pipe, the front lower direction of the discharge pipe is inclined, and the material collecting cover comprises a first unit cover connected to the bottom end of the discharge pipe; an inner cavity of the first unit cover gradually becomes larger downwards, an inner cavity of the second unit cover gradually becomes smaller downwards, a speed reduction face gradually lengthened in the front side direction is formed at the bottom of the inner cavity of the second unit cover, the bottom end of the discharging pipe corresponds to the right side of the speed reduction face, and a final discharging port is formed in the tail end of the front portion of the second unit cover. The produced peculiar smell gas is blocked to a certain degree, the speed of discharging the peculiar smell gas along with the slurry is reduced, and the suction and discharge area of the peculiar smell gas by the purification pipe is increased, so that the suction and discharge efficiency of the purification pipe is improved, and the peculiar smell concentration after the slurry is finally discharged is greatly reduced.

Description

Technical Field

[0001] The invention relates to the technical field of mortar production, and in particular to an exhaust gas purification treatment device for mortar production. Background Art

[0002] During mortar production, sand, water and various propellants are added to the equipment cabin, and the stirring components in the equipment cabin complete the mixing before discharging the material through the discharge pipe. The discharged mortar is bagged and transferred to a different location. The propellants in the mortar and the mortar itself will produce a large amount of gas, which will increase in concentration in the air as the mortar is discharged. If the high-concentration gas is not treated to reduce the concentration, it will pollute the environment like industrial waste gas after direct discharge, and will enter the respiratory tract during bagging operations, causing human infection. When equipped with purification equipment, the existing purification equipment has a separate valve, and the valve on the pulping equipment needs to be opened and closed in steps, which is inefficient. Summary of the invention

[0003] In order to solve the above problems, the present invention provides the following technical solutions:

[0004] A tail gas purification treatment device for mortar production comprises a discharge pipe, the top end of the discharge pipe is connected to the mortar production equipment, the bottom end of the discharge pipe is provided with a collecting cover, the discharge pipe is inclined in the front and lower direction, the collecting cover comprises a first unit cover connected to the bottom end of the discharge pipe, and a second unit cover connected to the bottom end of the first unit cover, the inner cavity of the first unit cover gradually increases downward, the inner cavity of the second unit cover gradually decreases downward, and the bottom of the inner cavity of the second unit cover is formed with a deceleration surface that gradually elongates toward the front side, the bottom end of the discharge pipe corresponds to the right side of the deceleration surface, and the front terminal of the second unit cover is provided with a final discharge port, and the final discharge port is a reducer that gradually increases toward the inner cavity of the second unit cover, a purification hole is opened at the connection position between the first unit cover and the second unit cover, the outer end of the purification hole is connected to the purification pipe, and the outer end of the purification pipe is connected to It is connected to the air inlet of the purification equipment, the inner end of the purification hole is located above the deceleration surface, and the inner end of the purification hole faces the deceleration surface. A backblowing surface is formed on the top of the inner cavity of the second unit cover, and the backblowing surface is located above the front side of the deceleration surface, so that the backblowing surface and the deceleration surface correspond to each other front and back. A backblowing pipe is installed on the second unit cover, one end of the backblowing pipe extends upward to the periphery of the discharge pipe and is installed with a second valve assembly, and the other end of the backblowing pipe enters the second unit cover from the backblowing surface, and a first valve assembly is installed on the discharge pipe, and the inner end of the backblowing pipe enters the final discharge port. A control assembly is provided between the first valve assembly and the second valve assembly. When the first valve assembly rotates outward and opens the discharge pipe, the control assembly triggers the second valve assembly to open the backblowing pipe at the same time, and the air inlet end of the backblowing pipe is connected to the air outlet of the purification equipment.

[0005] Further preferably, a semicircular rotating groove is opened backward from the forward inclined surface of the discharge pipe, an adapter seat is fixed on the outer wall of the discharge pipe, and a rotating shaft is installed on the adapter seat, and the first valve assembly includes a valve plate installed on the adapter seat; the valve plate rotates into the rotating groove to close the discharge pipe, and the second valve assembly includes a pressure rod slidingly fitted in the back-blowing pipe by the upper end of the back-blowing pipe, and also includes a guide sleeve fixed in the back-blowing pipe, and also includes an air inlet opened on the side of the back-blowing pipe, a guide hole is opened on the guide sleeve, and the top end of the pressure rod is provided with a large diameter portion slidingly fitted on the wall of the back-blowing pipe cavity, and the bottom end of the pressure rod is inserted in the guide sleeve through the guide hole, and a spring is provided between the top end of the guide sleeve and the bottom surface of the large diameter portion, and the spring is sleeved on the pressure rod.

[0006] Further preferably, an injection pipe is connected to the air inlet, the other end of the injection pipe is connected to the purification device, and the end of the injection pipe connected to the air inlet enters the backflush pipe and is sealed on the bottom end of the pressure rod.

[0007] Further preferably, the control component includes a slope opened on the top surface of the large diameter portion, the control component also includes an exhaust port opened on the pressure rod and located above the inner end of the injection pipe, the slope is inclined downward and is located on the rotation path of the valve plate, and the control component also includes a chamfer arranged on the bottom edge of the valve plate.

[0008] Further preferably, a rubber block is fixed on the pressure rod, and the rubber block is located above the exhaust port. When the pressure rod is lowered, the exhaust port is overlapped with the injection pipe, so that the injection pipe injects gas into the backflush pipe.

[0009] Further preferably, there are a plurality of purification pipes, the plurality of purification pipes are connected to the first unit cover, the outer ends of the purification pipes are commonly connected to an air collecting pipe, and the air collecting pipe is connected to the purification device through a pipeline.

[0010] Further preferably, the linear direction of the final discharge port is located between the back-blowing surface and the deceleration surface.

[0011] Further preferably, a limit plate is welded on the discharge pipe, the limit plate is U-shaped, and a connecting portion connected to the rotating shaft is provided on the valve plate, the connecting portion extends into the U-shaped cavity of the limit plate, and the valve plate rotates from the rotary groove to the slope to apply pressure and force the pressure rod to descend, thereby driving the connecting portion to rotate to the limit plate at the same time.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. A discharge pipe is provided, and a forward-inclined aggregate cover is provided at the bottom thereof. When the pulping equipment discharges the slurry, the slurry falls from the discharge pipe into the aggregate cover, and then is discharged outward through the final discharge port. The deceleration surface inclined forward and upward by the aggregate cover is utilized to increase the discharge stroke and the discharge time, so that most of the gas generated when the slurry is discharged along the deceleration surface is diffused in the aggregate cover. Multiple purification pipes are provided on the aggregate, and the purification pipes are connected to an external third-party purification device. After the slurry is discharged, the speed is slowly reduced by the aggregate cover, so that the odorous gas is absorbed by the purification pipe and discharged into the purification equipment for treatment, thereby reducing pollution. A backblowing pipe is connected to the second unit cover of the aggregate cover. One end of the backblowing pipe is located on the second unit cover and blows toward the deceleration surface. The air inlet end of the backblowing pipe is connected to the purification equipment through an injection pipe. After the purification equipment absorbs and purifies the odorous gas in the aggregate cover and discharges it outward, part of the purified gas is sent to the backblowing pipe through the injection pipe, and then blown back into the second unit cover by the backblowing pipe. This part of gas helps the odorous gas to diffuse in the second unit cover. When the slurry is discharged along the deceleration surface, the produced odorous gas is blocked to a certain extent, reducing its speed of being discharged along with the slurry, increasing the suction and discharge area of ​​the odorous gas by the purification pipe, thereby improving the suction and discharge efficiency of the purification pipe, and greatly reducing the odor concentration after the slurry is finally discharged.

[0014] 2. The opening and closing state of the back-blowing pipe is controllable, that is, the first valve assembly is closed, the discharge pipe does not discharge material, the slurry will not enter the aggregate cover, and the back-blowing pipe does not need to blow air to the second unit cover at this time. When the valve plate is operated to open the first valve assembly, the large diameter part is pushed down, and the large diameter part pushes the pressure rod down until the adapter rotates to the limit plate with the valve plate, the valve plate stops rotating, the bottom surface of the valve plate is completely pressed on the large diameter part, the spring is compressed and shortened, the pressure rod is lowered to the maximum position, and the exhaust port is overlapped on the injection pipe, so that the injection pipe and the back-blowing pipe are connected. At this time, not only the first valve assembly is opened, but also the second valve assembly is quickly opened. The two valves achieve the purpose of rapid opening and are easy to operate. At this time, the purification equipment is powered on and the slurry enters the aggregate cover from the discharge pipe. At this time, the odorous gas in the aggregate cover is not only sucked and discharged by the purification pipe to the purification equipment for purification, but also part of the purified gas can enter the back-blowing pipe through the injection pipe, which is applied to the diffusion of odorous gas in the aggregate cover. The two valve components are arranged together in a linkage manner, thereby improving working efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic diagram of a tail gas purification device for mortar production provided by an embodiment of the present invention from a right front side perspective;

[0016] Figure 2 A schematic diagram of a tail gas purification device for mortar production provided by an embodiment of the present invention from a left front side perspective;

[0017] Figure 3 A tail gas purification device for mortar production provided by the embodiment of the present invention comprises Figure 1 The derived top view plan diagram;

[0018] Figure 4 A schematic diagram of a cutaway tail gas purification device for mortar production provided by an embodiment of the present invention;

[0019] Figure 5 A schematic diagram of an exhaust gas purification device for mortar production provided by an embodiment of the present invention is cut away from the backflush pipe, and the diagram also shows a schematic diagram of the valve plate rotating in the slope direction of the top end of the pressure rod;

[0020] Figure 6 A tail gas purification device for mortar production provided by the embodiment of the present invention comprises Figure 5 An enlarged schematic diagram of part A is shown.

[0021] In the figure: 1. discharge pipe; 2. collection cover; 3. first unit cover; 4. second unit cover; 5. deceleration surface; 6. final discharge port; 7. purification hole; 8. purification pipe; 9. backblowing surface; 10. backblowing pipe; 11. first valve assembly; 12. second valve assembly; 13. control assembly; 14. rotary groove; 15. adapter seat; 16. rotating shaft; 17. valve plate; 18. pressure rod; 19. guide sleeve; 20. air inlet; 21. guide hole; 22. large diameter part; 23. spring; 24. injection pipe; 25. slope; 26. exhaust port; 27. chamfer; 28. rubber block; 29. ​​air collecting pipe; 30. limit plate; 31. adapter. DETAILED DESCRIPTION

[0022] The above and other embodiments and advantages of the present invention are described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments.

[0023] In one embodiment, Figure 1-Figure 6As shown: the present embodiment provides an exhaust gas purification treatment device for mortar production, comprising a discharge pipe 1, the top of which is connected to the mortar production equipment, a collecting cover 2 is provided at the bottom of the discharge pipe 1, the discharge pipe 1 is inclined in the front and lower direction, the collecting cover 2 comprises a first unit cover 3 connected to the bottom of the discharge pipe 1, and a second unit cover 4 connected to the bottom of the first unit cover 3, the inner cavity of the first unit cover 3 gradually increases downward, the inner cavity of the second unit cover 4 gradually decreases downward, and a deceleration surface 5 gradually elongated toward the front direction is formed at the bottom of the inner cavity of the second unit cover 4, the bottom end of the discharge pipe 1 corresponds to the right side of the deceleration surface 5, and a final discharge port 6 is provided at the front terminal of the second unit cover 4, and the final discharge port 6 is a reducing port that gradually increases toward the inner cavity of the second unit cover 4, a purification hole 7 is opened at the connection position between the first unit cover 3 and the second unit cover 4, the outer end of the purification hole 7 is connected to a purification pipe 8, and the outer end of the purification pipe 8 is connected to the purification On the air inlet of the equipment, the inner end of the purification hole 7 is located above the deceleration surface 5, and the inner end of the purification hole 7 faces the deceleration surface 5. A back-blowing surface 9 is formed on the top of the inner cavity of the second unit cover 4, and the back-blowing surface 9 is located above the front side of the deceleration surface 5, so that the back-blowing surface 9 and the deceleration surface 5 correspond to each other front and back. A back-blowing pipe 10 is installed on the second unit cover 4, one end of the back-blowing pipe 10 extends upward to the periphery of the discharge pipe 1 and is installed with a second valve assembly 12, and the other end of the back-blowing pipe 10 enters the second unit cover 4 from the back-blowing surface 9, and a first valve assembly 11 is installed on the discharge pipe 1, and the inner end of the back-blowing pipe 10 enters the final discharge port 6. A control assembly 13 is provided between the first valve assembly 11 and the second valve assembly 12. When the first valve assembly 11 rotates outward and opens the discharge pipe 1, the control assembly 13 triggers the second valve assembly 12 to open the back-blowing pipe 10 at the same time, and the air inlet end of the back-blowing pipe 10 is connected to the air outlet of the purification equipment.

[0024] A semicircular rotary groove 14 is opened backward from the forward inclined surface of the discharge pipe 1, an adapter seat 15 is fixed on the outer wall of the discharge pipe 1, and a rotating shaft 16 is installed on the adapter seat 15. The first valve assembly 11 includes a valve plate 17 installed on the rotating shaft 16; the valve plate 17 rotates into the rotary groove 14 to close the discharge pipe 1, and the second valve assembly 12 includes a pressure rod 18 that is slidably matched in the backblowing pipe 10 by the upper end of the backblowing pipe 10, and also includes a guide sleeve 19 fixed in the backblowing pipe 10, and also includes an air inlet 20 opened on the side of the backblowing pipe 10, and a guide hole 21 is opened on the guide sleeve 19. The top end of the pressure rod 18 is provided with a large diameter portion 22 that is slidably matched on the cavity wall of the backblowing pipe 10, and the bottom end of the pressure rod 18 is inserted into the guide sleeve 19 through the guide hole 21. A spring 23 is provided between the top end of the guide sleeve 19 and the bottom surface of the large diameter portion 22, and the spring 23 is sleeved on the pressure rod 18.

[0025] An injection pipe 24 is connected to the air inlet 20 , and the other end of the injection pipe 24 is connected to the purification device. One end of the injection pipe 24 connected to the air inlet 20 enters the backflush pipe 10 and is blocked on the bottom end of the pressure rod 18 .

[0026] The control assembly 13 includes a slope 25 provided on the top surface of the large diameter portion 22, and also includes an exhaust port 26 provided on the pressure rod 18 and located above the inner end of the injection pipe 24. The slope 25 is inclined downward and located on the rotation path of the valve plate 17. The control assembly 13 also includes a chamfer 27 provided on the bottom edge of the valve plate 17. A rubber block 28 is fixed on the pressure rod 18, and the rubber block 28 is located above the exhaust port 26. When the pressure rod 18 is lowered, the exhaust port 26 is overlapped with the injection pipe 24, so that the injection pipe 24 injects gas into the blowback pipe 10. A limit plate 30 is welded on the discharge pipe 1, and the limit plate 30 is U-shaped. A connecting portion 31 connected to the rotating shaft 16 is provided on the valve plate 17, and the connecting portion 31 extends into the U-shaped cavity of the limit plate 30. When the valve plate 17 rotates from the rotary groove 14 to the slope 25 to apply pressure and force the pressure rod 18 to descend, it also drives the connecting portion 31 to rotate onto the limit plate 30.

[0027] When in use, the top end of the discharge pipe 1 is connected to the discharge port of the mortar equipment. After the discharge pipe 1 is installed, the collecting cover 2 at its bottom is tilted forward (toward the human body). After the mortar equipment is mixed, the valve plate 17 is operated to rotate the valve plate 17 outward from the rotary groove 14 to open the discharge pipe 1. The mortar first enters the collecting cover 2 through the discharge pipe 1, and then is discharged outward through the final discharge port 6. The collecting cover 2 is tilted forward and upward, so the slurry falls into the collecting cover 2, and then is discharged outward through the final discharge port 6. The collecting cover 2 is tilted forward and upward, so the slurry falls into the collecting cover 2, and then is discharged outward through the final discharge port 6. The deceleration surface 5 increases the discharging stroke and prolongs the discharging time, so that most of the gases generated when the slurry is discharged along the deceleration surface 5 are diffused in the collecting cover 2. The external third-party purification equipment is powered on and uses the purification pipe 8 to inhale air outward. There are several purification pipes 8, and several purification pipes 8 are connected to the first unit cover 3. The outer ends of the purification pipes 8 are commonly connected to the gas collecting pipe 29, and the gas collecting pipe 29 is connected to the purification equipment through a pipeline, thereby improving the emission efficiency of these odorous gases and reducing pollution when the slurry is discharged. After the odorous gas is absorbed and purified by the purification equipment, it is discharged through the exhaust pipe. A backblowing pipe 10 is connected to the second unit cover 4. One end of the backblowing pipe 10 located on the second unit cover 4 blows toward the deceleration surface 5. The air inlet end of the backblowing pipe 10 is connected to the purification equipment through an injection pipe 24 (connected to the exhaust pipe on the purification equipment). After the purification equipment absorbs and purifies the odorous gas in the aggregate cover 2 and discharges it outward, part of the purified gas is sent to the backblowing pipe 10 through the injection pipe 24, and then blown back into the second unit cover 4 by the backblowing pipe 10. This part of the gas helps the odorous gas to diffuse in the second unit cover 4. When the slurry is discharged along the deceleration surface 5, the produced odorous gas is blocked to a certain extent, reducing its speed of being discharged together with the slurry, so that the suction and discharge area of ​​the odorous gas by the purification pipe 8 is increased, thereby improving the suction and discharge efficiency of the purification pipe 8, and the odor concentration after the slurry is finally discharged is greatly reduced.

[0028] The opening and closing state of the backflush pipe 10 in the present invention is controllable, that is, the first valve assembly 11 is closed, the discharge pipe 1 does not discharge material, the slurry does not enter the collection cover 2, and the backflush pipe 10 does not need to blow air to the second unit cover 4 at this time. Figure 5As shown in the figure, the valve plate 17 is rotated in the direction of the slope 25, and the chamfer 27 on the bottom edge of the valve plate 17 pushes the slope 25, so that the slope 25 pushes the large diameter part 22 down, and the large diameter part 22 pushes the pressure rod 18 down, until the adapter 31 rotates with the valve plate 17 to the limit plate 30, the valve plate 17 stops rotating, the bottom surface of the valve plate 17 is completely pressed on the large diameter part 22, the spring 23 is compressed and shortened, the pressure rod 18 is lowered to the maximum position, and the exhaust port 26 is overlapped with the injection pipe 24, so that the injection pipe 24 is connected to the backflush pipe 10. At this time, not only the first valve assembly 11 is opened, but also the second valve assembly 12 is quickly opened. The two valves achieve the purpose of quick opening and are easy to operate. At this time, the purification equipment is powered on and the slurry enters the collection cover 2 from the discharge pipe 1. At this time, the odorous gas in the collection cover 2 is not only sucked and discharged by the purification pipe 8 to the purification equipment for purification, but also part of the purified gas can also enter the backflush pipe 10 through the injection pipe 24, and is applied to the diffusion of the odorous gas in the collection cover 2. The two valve assemblies are arranged together in a linkage manner to improve work efficiency. On the contrary, when the valve plate 17 is rotated back to the rotary groove 14 and the discharge pipe 1 is closed, the pulping equipment no longer discharges material, and at the same time the valve plate 17 leaves the slope 25, the pressure on the large diameter part 22 disappears, the spring 23 rebounds upward, and the large diameter part 22 drives the pressure rod 18 to rise, so that the exhaust port 26 at the bottom end of the pressure rod 18 rises and separates from the injection pipe 24, and the bottom section of the pressure rod 18 is blocked on the injection pipe 24 again, the injection pipe 24 no longer injects air into the backblowing pipe 10, and the second valve assembly 12 and the first valve assembly 11 are closed at the same time.

[0029] The cross section of the pressure rod 18 is polygonal, for example, when the cross section is square, the corresponding guide hole 21 is also square, thereby ensuring that the pressure rod 18 will not rotate during the lifting action, thereby ensuring that the exhaust port 26 can overlap with the injection pipe 24 after descending.

[0030] The above orientation designations do not represent the specific orientations of the components in this implementation scheme. This implementation scheme is only for the convenience of describing the scheme, and the orientations are described relatively with reference to the figures. In essence, the specific orientations of the components are described according to their actual installation and actual use as well as the customary orientations of those skilled in the art. This is hereby explained.

[0031] The specific implementation methods described above further describe the invention purpose, technical solutions, and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific implementation method of the present invention and is not intended to limit the protection scope of the present invention. It is particularly pointed out that for those skilled in the art, any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A tail gas purification device for mortar production, characterized in that: The invention comprises a discharge pipe (1), the top end of which is connected to a mortar production device, the bottom end of which is provided with a material collecting cover (2), the discharge pipe (1) being inclined in a front-down direction, the material collecting cover (2) comprising a first unit cover (3) connected to the bottom end of the discharge pipe (1), and a second unit cover (4) connected to the bottom end of the first unit cover (3), the inner cavity of the first unit cover (3) gradually increases downward, the inner cavity of the second unit cover (4) gradually decreases downward, and the bottom of the inner cavity of the second unit cover (4) is formed with a reducing member which gradually elongates toward the front side. The first unit cover (3) and the second unit cover (4) are connected to each other by a purifying hole (7). The outer end of the purifying hole (7) is connected to a purifying pipe (8). The outer end of the purifying pipe (8) is connected to the air inlet of the purifying device. The inner end of the purifying hole (7) is located at the deceleration surface (5). 5), and the inner end of the purification hole (7) faces the deceleration surface (5); a back-blowing surface (9) is formed on the top of the inner cavity of the second unit cover (4); the back-blowing surface (9) is located above the front side of the deceleration surface (5), so that the back-blowing surface (9) and the deceleration surface (5) correspond to each other front and back; a back-blowing pipe (10) is installed on the second unit cover (4); one end of the back-blowing pipe (10) extends upward to the vicinity of the periphery of the discharge pipe (1) and is installed with a second valve assembly (12); the other end of the back-blowing pipe (10) enters the discharge pipe (1) through the back-blowing surface (9). In the second unit cover (4), a first valve assembly (11) is installed on the discharge pipe (1), and the inner end of the back-blowing pipe (10) enters the final discharge port (6). A control assembly (13) is provided between the first valve assembly (11) and the second valve assembly (12). When the first valve assembly (11) rotates outward and opens the discharge pipe (1), the control assembly (13) triggers the second valve assembly (12) to open the back-blowing pipe (10), and the air inlet end of the back-blowing pipe (10) is connected to the air outlet of the purification equipment.

2. The tail gas purification device for mortar production according to claim 1, characterized in that: A semicircular revolving groove (14) is formed backward from the forward inclined surface of the discharge pipe (1); a transfer seat (15) is fixed on the outer wall of the discharge pipe (1); a rotating shaft (16) is installed on the transfer seat (15); the first valve assembly (11) includes a valve plate (17) installed on the rotating shaft (16); the valve plate (17) rotates into the revolving groove (14) to close the discharge pipe (1); the second valve assembly (12) includes a pressure rod (18) which is slidably matched with the upper end of the back-blowing pipe (10) in the back-blowing pipe (10); and further includes The guide sleeve (19) fixed in the back-blowing tube (10) also includes an air inlet (20) opened on the side of the back-blowing tube (10), a guide hole (21) is opened on the guide sleeve (19), the top end of the pressure rod (18) is provided with a large diameter portion (22) slidingly matched on the cavity wall of the back-blowing tube (10), the bottom end of the pressure rod (18) is inserted into the guide sleeve (19) through the guide hole (21), a spring (23) is provided between the top end of the guide sleeve (19) and the bottom surface of the large diameter portion (22), and the spring (23) is sleeved on the pressure rod (18).

3. The tail gas purification device for mortar production according to claim 2 is characterized in that: The air inlet (20) is connected to an injection pipe (24), the other end of which is connected to the purification device. The end of the injection pipe (24) connected to the air inlet (20) enters the backflush pipe (10) and is sealed on the bottom end of the pressure rod (18).

4. The tail gas purification device for mortar production according to claim 3 is characterized in that: The control assembly (13) includes a slope (25) provided on the top surface of the large diameter portion (22), the control assembly (13) also includes an exhaust port (26) provided on the pressure rod (18) and located above the inner end of the injection pipe (24), the slope (25) is inclined downward and located on the rotation path of the valve plate (17), and the control assembly (13) also includes a chamfer (27) provided on the bottom edge of the valve plate (17).

5. The tail gas purification device for mortar production according to claim 4, characterized in that: A rubber block (28) is fixed on the pressure rod (18), and the rubber block (28) is located above the exhaust port (26). When the pressure rod (18) descends, the exhaust port (26) overlaps with the injection pipe (24), so that the injection pipe (24) injects gas into the backflush pipe (10).

6. The tail gas purification device for mortar production according to claim 5, characterized in that: There are a plurality of purification pipes (8), and the plurality of purification pipes (8) are connected to the first unit cover (3). The outer ends of the purification pipes (8) are commonly connected to a gas collecting pipe (29), and the gas collecting pipe (29) is connected to the purification equipment through a pipeline.

7. The tail gas purification device for mortar production according to claim 6, characterized in that: The linear direction of the final discharge port (6) is located between the back-blowing surface (9) and the deceleration surface (5).

8. The tail gas purification device for mortar production according to claim 7, characterized in that: A limit plate (30) is welded on the discharge pipe (1), and the limit plate (30) is U-shaped. The valve plate (17) is provided with a transition portion (31) that is connected to the rotating shaft (16), and the transition portion (31) extends into the U-shaped cavity of the limit plate (30). When the valve plate (17) rotates from the rotary groove (14) to the slope (25) to apply pressure and force the pressure rod (18) to descend, it drives the transition portion (31) to rotate to the limit plate (30) at the same time.

Images