A kiln flue gas purification treatment device and its usage method

Abstract

The present invention relates to the field of flue gas treatment. The present invention discloses a purification treatment device for kiln flue gas, including a kiln furnace body, and an exhaust pipe is installed on the kiln furnace body. The problem to be solved by the present invention is that the existing device needs to regularly disassemble and replace the filter screen. The present invention consists of a filter screen switching mechanism and a filter screen storage box. After a large amount of soot is blocked in the mesh holes of the filter screen inside the filter box of the purification treatment device for kiln flue gas and its impact by the air flow becomes larger, the filter screen moves to the right between the material discharge port and the discharge port on the inner wall of the filter box. At this time, as the lower pressing block moves down again, the vertical plate and the fourth spring telescopic rod move down simultaneously, pushing the filter screen on the right end of the fourth spring telescopic rod down, and squeezing and conveying the filter screen inside the filter box downward through the discharge port into the collection box, completing the replacement of the filter screen inside the filter box and realizing the automatic replacement of the filter screen in the filter box.

Description

Technical Field

[0001] The present invention relates to the field of flue gas treatment, and specifically to a purification treatment device and a use method for kiln flue gas. Background Art

[0002] A kiln or a furnace refers to a furnace used for firing ceramic wares and sculptures or for fusing enamel onto the surface of metal wares. Generally, it is built with bricks and stones and can be made in various sizes according to needs. It can operate using combustible gas, oil, or electricity. The waste gas emitted during the combustion process of the kiln contains a large amount of harmful gases such as SO2, HC1, HF, NO, CO, etc., as well as a large amount of dust. If it is directly discharged into the atmosphere without undergoing desulfurization, dust removal, etc., it will cause a certain degree of pollution to the local environment.

[0003] When the existing purification treatment device for kiln flue gas filters the dust in the kiln flue gas, a filter screen is generally used. However, after the filter screen filters the flue gas for a period of time, it will become blocked, which will easily affect the efficiency of the flue gas discharge in the kiln. Therefore, the filter screen needs to be replaced regularly, and thus it is necessary to disassemble the filter screen on the device, and the operation is rather troublesome. Summary of the Invention

[0004] The purpose of the present invention is to provide a purification treatment device and a use method for kiln flue gas to solve the problem that the existing device needs to regularly disassemble and replace the filter screen as proposed in the above background art. To achieve the above purpose, the present invention provides the following technical solution: A purification treatment device for kiln flue gas, including a kiln furnace body, an exhaust pipe is installed on the kiln furnace body, one end of the exhaust pipe far from the kiln furnace body is fixedly connected to a filter box, limiting baffles are fixedly connected to both the front and rear sides of the inner wall of the filter box, an L-shaped limiting plate abuts against the right side of the limiting baffle, and the L-shaped limiting plate and the limiting baffle form a U-shaped structure. A filter screen is movably inserted between the L-shaped limiting plate and the limiting baffle, and a card slot is opened on the left side of the filter screen;

[0005] The two L-shaped limiting plates are symmetrically arranged, and the two L-shaped limiting plates are respectively slidably arranged on the front and rear sides of the inner wall of the filter box. The right side of the L-shaped limiting plate is fixedly connected to a first spring telescopic rod, and one end of the first spring telescopic rod far from the L-shaped limiting plate is fixed on the inner wall of the filter box;

[0006] An air outlet pipe is fixedly inserted into the right side of the filter box. A discharge port is opened on the bottom surface of the filter box, and the discharge port is located at the lower right side of the limiting baffle. A filter screen switching mechanism is fixedly connected to the left side of the top surface of the filter box. The right side of the filter screen switching mechanism is fixedly connected to a filter screen storage box, and the filter screen storage box is fixed on the right side of the top surface of the filter box. The filter screen in the filter screen storage box is pushed into the filter box through the filter screen switching mechanism to replace the filter screen in the filter box.

[0007] Preferably, the filter screen switching mechanism includes a housing fixed to the left side of the top surface of the filter box. A motor is fixedly connected to the right side of the inner wall of the housing. One end of the rotating shaft of the motor is fixedly connected with a folding rod. One end of the folding rod away from the motor is hinged with a pressing block. A bottom surface of the pressing block is fixedly connected with an inverted U-shaped sliding shell. The front and rear ends of the inverted U-shaped sliding shell respectively abut against limiting sliding rails, and the two limiting sliding rails are respectively fixed to the front and rear sides of the inner wall of the filter box;

[0008] A brush block is slidably arranged inside the inverted U-shaped sliding shell, and the right side of the brush block abuts against the filter screen. A left side of the brush block is fixedly connected with a second spring telescopic rod, and one end of the second spring telescopic rod away from the brush block is fixed on the inverted U-shaped sliding shell. A top surface of the brush block is fixedly connected with two sliding blocks, and the two sliding blocks are respectively slidably arranged in two sliding grooves opened on the top surface of the inverted U-shaped sliding shell. A right side of the top of the sliding block is fixedly connected with a third spring telescopic rod, and the two third spring telescopic rods are respectively distributed on the front and rear sides of the pressing block.

[0009] Preferably, the filter screen switching mechanism further includes a limiting groove opened on the right side of the pressing block. A rotating rod is rotatably connected to the middle of the limiting groove. One end of the rotating rod away from the limiting groove is fixedly connected with a turntable. A deflection handle is fixedly connected to a side surface of the turntable. A reset spring telescopic rod is hinged to a side of the turntable facing away from the rotating rod, and one end of the reset spring telescopic rod away from the turntable is hinged to the pressing block;

[0010] Two hinge plates are hinged to a side of the turntable facing the rotating rod, and one end of the hinge plate away from the turntable is hinged with a sliding block. The sliding block is slidably arranged in the limiting groove, and a soft rubber block is fixedly connected to an end of the sliding block away from the hinge plate, and the soft rubber block abuts against a side surface of one end of the third spring telescopic rod.

[0011] Preferably, a blanking port is opened on the left side of the bottom surface of the filter screen storage box, and the blanking port is directly above the discharge port. Two vertical grooves are opened on the left side of the filter screen storage box. A fourth spring telescopic rod is slidably arranged in the vertical groove, and a right end of the fourth spring telescopic rod is a slope. The right end of the fourth spring telescopic rod abuts against a clamping groove of the leftmost filter screen in the filter screen storage box. The left ends of the two fourth spring telescopic rods are fixedly connected with a cross plate;

[0012] A vertical plate is fixedly connected to the left side of the cross plate. The vertical plate abuts against the right side of the top surface of the inverted U-shaped sliding shell, and the vertical plate slides in the two limiting sliding rails. Two slots are opened on the vertical plate, and the two slots are respectively located on the right sides of the two third spring telescopic rods. A groove is opened on the bottom surface of the vertical plate, and the deflection handle abuts against an inner wall of the groove.

[0013] Preferably, a push handle penetrates through the right side of the filter screen storage box. A tension spring is connected between the inner side of the push handle and the right side of the filter screen storage box. A push plate is fixedly connected to one side of the push handle located inside the filter screen storage box.

[0014] Preferably, a collection box is fixedly connected to the bottom of the filter box. A connecting frame is fixedly connected to the bottom surface of the collection box, and the connecting frame is fixed to the right side of the kiln furnace body.

[0015] Preferably, an opening backing plate is fixedly connected to the right side of the inner wall bottom of the filter box, and the opening of the opening backing plate communicates with the discharge port.

[0016] Preferably, a method for using a flue gas purification treatment device for a kiln furnace includes the following steps:

[0017] S1: After the flue gas in the kiln furnace body enters the filter box along the exhaust pipe, the filter screen inside the filter box filters the flue gas. The filtered flue gas enters the outlet pipe, achieving the purpose of filtering the flue gas;

[0018] When the filter screen inside the filter box filters the flue gas, the folding rod is rotated by the motor, pushing the pressing block and the inverted U-shaped sliding shell below it to move downward in the limit slide rail. The brush block inside the inverted U-shaped sliding shell abuts against the left side of the filter screen inside the filter box, scraping the left side of the filter screen to prevent too much soot from adhering to the surface of the filter screen and affecting the ventilation rate of the filter screen surface;

[0019] S2: When the pressing block moves downward, the turntable rotates clockwise under the restoring force of the reset spring telescopic rod, causing the hinged plate to push the sliding block and the soft rubber block to slide on the inner wall of the limit groove and abut against the side of the corresponding third spring telescopic rod, preventing the brush block from moving rightward in the limit slide rail and pushing the third spring telescopic rod rightward after the pressing block moves downward;

[0020] S3: When a large amount of soot accumulates in the mesh holes of the filter screen inside the filter box, the impact force of the airflow on it becomes larger, causing the filter screen to move rightward on the inner wall of the filter box between the feeding port and the discharge port. At this time, the first spring telescopic rod is compressed by force. At this time, the brush block moves rightward under the action of the second spring telescopic rod and continues to abut against the filter screen. When the brush block moves rightward, it drives the slider to move rightward and pushes the third spring telescopic rod to compress;

[0021] When the lower pressure block moves up and resets, the deflection handle contacts with the groove, driving the turntable to deflect counterclockwise and cooperate with the hinged plate to pull the sliding block and the soft rubber block to slide into the limit groove, thereby releasing the resistance force on the third spring telescopic rod. At this time, the third spring telescopic rod resets and stretches and is inserted into the slot. At this time, as the lower pressure block moves down again, the vertical plate and the fourth spring telescopic rod move down at the same time, pushing the filter screen on the right end of the fourth spring telescopic rod to move down, and squeezing the filter screen inside the filter box downward through the discharge port and transporting it to the collection box, thereby completing the replacement of the filter screen inside the filter box.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] In the present invention, the folding rod is driven to rotate by a motor, pushing the lower pressing block and the inverted U-shaped sliding shell on the lower side thereof to move downward in the limiting sliding rail, and the brush block inside the inverted U-shaped sliding shell is pressed against the left side of the filter screen in the filter box to scrape the left side of the filter screen, thereby preventing too much smoke and dust from adhering to the surface of the filter screen and affecting the air permeability of the filter screen surface.

[0024] In the present invention, when a lot of smoke and dust are clogged in the mesh of the filter screen inside the filter box, the impact of the airflow becomes greater, causing the filter screen to move right on the inner wall of the filter box to between the feed port and the discharge port. At this time, as the lower pressure block moves downward again, the vertical plate and the fourth spring telescopic rod are driven downward at the same time, pushing the filter screen on the right end of the fourth spring telescopic rod to move downward, and the filter screen inside the filter box is squeezed downward through the discharge port and transported to the collection box, thereby completing the replacement of the filter screen inside the filter box and realizing automatic replacement of the filter screen in the filter box.

[0025] In the present invention, after the filter is replaced, the pressing block moves up and resets, and the soft rubber block is separated from the side of the right end of the third spring telescopic rod again. The third spring telescopic rod is retracted and reset, so that the third spring telescopic rod is separated from the vertical plate, and the device completes the replacement and reset of the blocked filter. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0027] Figure 2 It is a schematic diagram of a partial three-dimensional structure of the present invention;

[0028] Figure 3 It is a three-dimensional structural schematic diagram of the housing and the filter box of the present invention;

[0029] Figure 4 It is a three-dimensional structural schematic diagram of the housing, filter box and filter storage box of the present invention;

[0030] Figure 5 For the present invention Figure 4 A magnified view of the structure at center;

[0031] Figure 6 Top view of the three-dimensional structure of the filter box of the present invention;

[0032] Figure 7 Cross-sectional view of the three-dimensional structure of the housing of the present invention;

[0033] Figure 8 Schematic diagram of the three-dimensional structure of the fourth spring telescopic rod and the cross plate of the present invention;

[0034] Figure 9 Schematic diagram of the three-dimensional structure of the sliding block and the soft rubber block of the present invention;

[0035] Figure 10 Schematic diagram of the three-dimensional structure of the reset spring telescopic rod and the deflection handle of the present invention;

[0036] Figure 11 Schematic diagram of the three-dimensional structure of the slider and the third spring telescopic rod of the present invention;

[0037] Figure 12 Schematic diagram of the three-dimensional structure of the filter screen and the filter screen storage box of the present invention;

[0038] Figure 13 Schematic diagram of the three-dimensional structure of the filter screen storage box of the present invention;

[0039] Figure 14 Cross-sectional view of the three-dimensional structure of the filter screen storage box of the present invention.

[0040] In the figure: 1. Kiln furnace body; 2. Exhaust pipe; 3. Filter box; 4. Limit baffle; 5. L-shaped limit plate; 6. First spring telescopic rod; 7. Air outlet pipe; 8. Filter screen switching mechanism; 81. Housing; 82. Motor; 83. Folding rod; 84. Pressing block; 85. Inverted U-shaped sliding shell; 86. Limit sliding rail; 87. Brush block; 88. Second spring telescopic rod; 89. Slider; 810. Chute; 811. Third spring telescopic rod; 812. Limit groove; 813. Rotating rod; 814. Turntable; 815. Hinge plate; 816. Sliding block; 817. Soft rubber block; 818. Reset spring telescopic rod; 819. Deflection handle; 9. Filter screen; 10. Discharge port; 11. Filter screen storage box; 111. Feeding port; 112. Vertical groove; 113. Fourth spring telescopic rod; 114. Cross plate; 115. Vertical plate; 116. Slot; 117. Groove; 118. Push handle; 119. Pull spring; 1110. Pushing plate; 12. Collection box; 13. Connecting frame; 14. Opening backing plate. Detailed implementation manners

[0041] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0042] Please refer to Figures 1 to 14 , the present invention provides a technical solution: a kiln flue gas purification treatment device, including a kiln furnace body 1, an exhaust pipe 2 is installed on the kiln furnace body 1, an exhaust fan is installed in the exhaust pipe 2 to ensure the fluid velocity of the gas in the exhaust pipe 2. One end of the exhaust pipe 2 far from the kiln furnace body 1 is fixedly connected to a filter box 3. On both the front and rear sides of the inner wall of the filter box 3, there are fixedly connected limit baffles 4. The right side of the limit baffle 4 abuts against an L-shaped limit plate 5, and the L-shaped limit plate 5 and the limit baffle 4 form a U-shaped structure. A filter net 9 is movably inserted between the L-shaped limit plate 5 and the limit baffle 4, and a card slot is opened on the left side of the filter net 9; a longitudinal slot is opened on the inner side of the L-shaped limit plate 5 to ensure that the filter net 9 slides up and down stably in the L-shaped limit plate 5.

[0043] The two L-shaped limit plates 5 are symmetrically arranged, and the two L-shaped limit plates 5 are respectively slidably arranged on the front and rear sides of the inner wall of the filter box 3. The right side of the L-shaped limit plate 5 is fixedly connected to a first spring telescopic rod 6, and one end of the first spring telescopic rod 6 far from the L-shaped limit plate 5 is fixed on the inner wall of the filter box 3;

[0044] An air outlet pipe 7 is fixedly inserted on the right side of the filter box 3. A discharge port 10 is opened on the bottom surface of the filter box 3, and the discharge port 10 is located at the lower right side of the limit baffle 4. A filter net switching mechanism 8 is fixedly connected to the left side of the top surface of the filter box 3. The right side of the filter net switching mechanism 8 is fixedly connected to a filter net storage box 11. A plurality of filter nets 9 are stored inside the filter net storage box 11, and the filter net storage box 11 is fixed on the right side of the top surface of the filter box 3. The filter net 9 in the filter net storage box 11 is pushed into the filter box 3 through the filter net switching mechanism 8 to replace the filter net 9 in the filter box 3.

[0045] In this embodiment, as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 , Figure 10 , Figure 11 , Figure 12As shown, the filter screen switching mechanism 8 includes a housing 81 fixed to the left side of the top surface of the filter box 3. On the right side of the inner wall of the housing 81, a motor 82 is fixedly connected. One end of the rotating shaft of the motor 82 is fixedly connected with a folding rod 83. One end of the folding rod 83 away from the motor 82 is hinged with a pressing block 84. On the bottom surface of the pressing block 84, an inverted U-shaped sliding housing 85 is fixedly connected. The front and rear ends of the inverted U-shaped sliding housing 85 respectively abut against limiting sliding rails 86, and the two limiting sliding rails 86 are respectively fixed on the front and rear sides of the inner wall of the filter box 3;

[0046] A brush block 87 is slidably arranged inside the inverted U-shaped sliding housing 85, and the right side of the brush block 87 abuts against the filter screen 9. The thickness of the brush block 87 is 1.2 times the height of the card slot on the filter screen 9, so as to prevent the brush block 87 from entering the left card slot of the filter screen 9 when brushing the surface of the filter screen 9. A second spring telescopic rod 88 is fixedly connected to the left side of the brush block 87, and one end of the second spring telescopic rod 88 away from the brush block 87 is fixed on the inverted U-shaped sliding housing 85. Two sliding blocks 89 are fixedly connected to the top surface of the brush block 87, and the two sliding blocks 89 are respectively slidably arranged in two sliding grooves 810 opened on the top surface of the inverted U-shaped sliding housing 85. A third spring telescopic rod 811 is fixedly connected to the right side of the top of the sliding block 89, and the two third spring telescopic rods 811 are respectively distributed on the front and rear sides of the pressing block 84.

[0047] In this embodiment, as Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 、 Figure 8 、 Figure 9 、 Figure 10 、 Figure 11 、 Figure 12 shown, the filter screen switching mechanism 8 further includes a limiting groove 812 opened on the right side of the pressing block 84. A rotating rod 813 is rotatably connected to the middle of the limiting groove 812. One end of the rotating rod 813 away from the limiting groove 812 is fixedly connected with a turntable 814. A deflecting handle 819 is fixedly connected to the side surface of the turntable 814. A reset spring telescopic rod 818 is hinged to the side of the turntable 814 facing away from the rotating rod 813, and one end of the reset spring telescopic rod 818 away from the turntable 814 is hinged to the pressing block 84;

[0048] Two hinge plates 815 are hinged to the side of the turntable 814 facing the rotating rod 813. One end of the hinge plate 815 away from the turntable 814 is hinged with a sliding block 816. The sliding block 816 is slidably arranged in the limiting groove 812. A soft rubber block 817 is fixedly connected to the end of the sliding block 816 away from the hinge plate 815, and the soft rubber block 817 abuts against the side surface of the right end of the third spring telescopic rod 811.

[0049] In this embodiment, as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 12 , Figure 13 , Figure 14 shown, a blanking port 111 is provided on the left side of the bottom surface of the filter screen storage box 11, and the blanking port 111 is directly above the discharge port 10. Two vertical grooves 112 are provided on the left side of the filter screen storage box 11. A fourth spring telescopic rod 113 is slidably arranged in the vertical groove 112, and the right end of the fourth spring telescopic rod 113 is a slope. The right end of the fourth spring telescopic rod 113 abuts against the card slot of the leftmost filter screen 9 in the filter screen storage box 11. The left ends of the two fourth spring telescopic rods 113 are fixedly connected to a cross plate 114. By the downward movement of the right end of the fourth spring telescopic rod 113 in cooperation with the card slot on the left side of the filter screen, the leftmost filter screen 9 in the filter screen storage box 11 can be driven to move downward to replace the filter screen 9 in the filter box 3. Then, when the fourth spring telescopic rod 113 moves upward, the fourth spring telescopic rod 113 is squeezed and contracted through the slope at its end to complete the separation of the fourth spring telescopic rod 113 from the filter screen 9 in the filter box 3 and reset to the card slot of the leftmost filter screen 9 in the filter screen storage box 11.

[0050] A vertical plate 115 is fixedly connected to the left side of the cross plate 114. The vertical plate 115 abuts against the right side of the top surface of the inverted U-shaped sliding shell 85, and the vertical plate 115 slides in the two limit sliding rails 86. Two insertion slots 116 are provided on the vertical plate 115, and the two insertion slots 116 are respectively located on the right side of the two third spring telescopic rods 811. A groove 117 is provided on the bottom surface of the vertical plate 115, and the deflection handle 819 abuts against the inner wall of the groove 117.

[0051] In this embodiment, as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 11 , Figure 12 , Figure 13 , Figure 14 shown, a push handle 118 penetrates through the right side of the filter screen storage box 11. A tension spring 119 is connected between the inner side of the push handle 118 and the right side of the filter screen storage box 11. A push plate 1110 is fixedly connected to the side of the push handle 118 located inside the filter screen storage box 11. By the cooperation of the tension spring 119 and the push handle 118, the push plate 1110 is driven to move the filter screen 9 in the filter screen storage box 11 to the left to ensure the continuous supply of the filter screen 9.

[0052] In this embodiment, as Figure 1 , Figure 2As shown in the figure, a collection box 12 is fixedly connected to the bottom of the filtration box 3. A connecting frame 13 is fixedly connected to the bottom surface of the collection box 12, and the connecting frame 13 is fixed to the right side of the kiln furnace body 1 to ensure the stability of the collection box 12.

[0053] In this embodiment, as Figure 7 , Figure 12 shown, an opening backing plate 14 is fixedly connected to the right side of the inner wall bottom of the filtration box 3, and the opening of the opening backing plate 14 communicates with the discharge port 10, facilitating the collection of the dust scraped off the left side of the filter net 9 in the filtration box 3 on the left side of the inner wall of the filtration box 3.

[0054] The usage method and advantages of the present invention: The usage method of this kind of kiln furnace flue gas purification treatment device is as follows: The working process is as follows:

[0055] As Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 , Figure 10 , Figure 11 , Figure 12 , Figure 13 , Figure 14 shown:

[0056] S1: After the flue gas in the kiln furnace body 1 enters the filtration box 3 along the exhaust pipe 2, the filter net 9 inside the filtration box 3 filters the filter net 9. The filtered flue gas enters the air outlet pipe 7, achieving the purpose of filtering the flue gas;

[0057] When the filter net 9 inside the filtration box 3 filters the flue gas, the folding rod 83 is driven by the motor 82 to rotate, pushing the pressing block 84 and the inverted U-shaped sliding shell 85 below it to move downward in the limit sliding rail 86. The brush block 87 inside the inverted U-shaped sliding shell 85 abuts against the left side of the filter net 9 in the filtration box 3 to scrape the left side of the filter net 9, preventing excessive soot adhesion on the surface of the filter net 9 from affecting the air permeability of the filter net 9 surface;

[0058] S2: When the pressing block 84 moves downward, the turntable 814 rotates clockwise under the reset force of the reset spring telescopic rod 818, causing the hinged plate 815 to push the sliding block 816 and the soft rubber block 817 to slide on the inner wall of the limit groove 812 and abut against the side of the corresponding third spring telescopic rod 811, preventing the brush block 87 from moving rightward in the limit sliding rail 86 to push the third spring telescopic rod 811 rightward after the pressing block 84 moves downward;

[0059] S3: When a lot of smoke and dust is clogged in the mesh of the filter screen 9 inside the filter box 3, the impact of the airflow becomes greater, so that the filter screen 9 moves rightward on the inner wall of the filter box 3 to between the feed port 111 and the discharge port 10. At this time, the first spring telescopic rod 6 is compressed, and the brush block 87 moves rightward under the action of the second spring telescopic rod 88 and continues to contact the filter screen 9. When the brush block 87 moves rightward, it drives the slider 89 to move rightward and pushes the third spring telescopic rod 811 to compress.

[0060] When the lower pressing block 84 moves upward to reset, the deflection handle 819 contacts the groove 117, driving the turntable 814 to deflect counterclockwise and cooperate with the hinge plate 815 to pull the sliding block 816 and the soft rubber block 817 to slide into the limiting groove 812, thereby releasing the resistance to the third spring telescopic rod 811. At this time, the third spring telescopic rod 811 resets and stretches and is inserted into the slot 116. At this time, as the lower pressing block 84 moves downward again, the vertical plate 115 and the fourth spring telescopic rod 113 move downward at the same time, pushing the filter screen 9 on the right end of the fourth spring telescopic rod 113 to move downward, and the filter screen 9 inside the filter box 3 is squeezed downward and transported to the collection box 12 through the discharge port 10, completing the replacement of the filter screen 9 inside the filter box 3;

[0061] S4: After the filter screen 9 is replaced, the filter screen 9 is subjected to a smaller gas impact force, so that the first spring telescopic rod 6 is reset to drive the L-shaped limit plate 5 to move leftward in the filter box 3 and reset and fit with the limit baffle 4 again. At this time, the filter screen 9 in the filter box 3 is located at the lower left side of the discharge port 111 on the bottom surface of the filter storage box 11;

[0062] When the filter screen 9 moves to the left, the brush block 87 is pushed to move to the left in the limit slide rail 86 to reset, and the third spring telescopic rod 811 is pulled to extend by the slider 89. When the lower pressing block 84 moves upward, the vertical plate 115 is driven to slide upward in the limit slide rail 86 to reset. When the filter screen 9 in the filter box 3 is pressed against the bottom surface of the filter screen storage box 11, the fourth spring telescopic rod 113 moves upward and disengages from the slot on the left side of the filter screen storage box 11 through the inclined surface at its end.

[0063] When the lower pressure block 84 has completed its upward movement, the soft rubber block 817 is separated from the side of the right end of the third spring telescopic rod 811 again. The third spring telescopic rod 811 is retracted and reset, so that the third spring telescopic rod 811 is separated from the vertical plate 115, and the device completes the replacement and reset of the blocked filter.

[0064] The foregoing has shown and described the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments, and the above embodiments and the descriptions in the specification are only preferred examples of the present invention, and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements fall within the scope of the present invention claimed. The scope of the present invention claimed is defined by the appended claims and their equivalents.

Claims

1. A kiln fume purification device, comprising a kiln body (1), characterized in that: An exhaust pipe (2) is installed on the kiln furnace body (1), and a filter box (3) is fixedly connected to one end of the exhaust pipe (2) away from the kiln furnace body (1). Limit baffles (4) are fixedly connected to both sides of the inner wall of the filter box (3) at the front and rear ends. The right side of the limit baffle (4) abuts against an L-shaped limit plate (5), and the L-shaped limit plate (5) and the limit baffle (4) form a U-shaped structure. A filter screen (9) is movably inserted between the L-shaped limit plate (5) and the limit baffle (4), and a slot is provided on the left side of the filter screen (9); The two L-shaped limit plates (5) are symmetrically arranged, and the two L-shaped limit plates (5) are respectively slidably arranged on both sides of the front and rear inner wall of the filter box (3); the right side of the L-shaped limit plate (5) is fixedly connected with a first spring telescopic rod (6); and one end of the first spring telescopic rod (6) away from the L-shaped limit plate (5) is fixed on the inner wall of the filter box (3); An air outlet pipe (7) is fixedly connected to the right side of the filter box (3); a discharge port (10) is provided on the bottom surface of the filter box (3), and the discharge port (10) is located on the lower right side of the limit baffle (4); a filter screen switching mechanism (8) is fixedly connected to the left side of the top surface of the filter box (3); a filter screen storage box (11) is fixedly connected to the right side of the filter screen switching mechanism (8), and the filter screen storage box (11) is fixed on the right side of the top surface of the filter box (3); the filter screen (9) in the filter screen storage box (11) is pushed into the filter box (3) by the filter screen switching mechanism (8), so that the filter screen (9) in the filter box (3) is replaced; The filter screen switching mechanism (8) comprises a shell (81) fixed on the left side of the top surface of the filter box (3); a motor (82) is fixedly connected to the right side of the inner wall of the shell (81); a folding rod (83) is fixedly connected to one end of the rotating shaft of the motor (82); a lower pressing block (84) is hingedly connected to the end of the folding rod (83) away from the motor (82); an inverted U-shaped sliding shell (85) is fixedly connected to the bottom surface of the lower pressing block (84); the front and rear ends of the inverted U-shaped sliding shell (85) respectively abut against limiting slide rails (86), and the two limiting slide rails (86) are respectively fixed on the front and rear sides of the inner wall of the filter box (3); A brush block (87) is slidably arranged inside the inverted U-shaped sliding shell (85), and the right side of the brush block (87) contacts the filter screen (9). A second spring telescopic rod (88) is fixedly connected to the left side of the brush block (87), and one end of the second spring telescopic rod (88) away from the brush block (87) is fixed to the inverted U-shaped sliding shell (85). Two sliders (89) are fixedly connected to the top surface of the brush block (87), and the two sliders (89) are respectively slidably arranged in two slide grooves (810) opened on the top surface of the inverted U-shaped sliding shell (85). A third spring telescopic rod (811) is fixedly connected to the right side of the top of the slider (89), and the two third spring telescopic rods (811) are respectively distributed on both sides of the front and rear of the lower pressing block (84); The filter screen switching mechanism (8) also includes a limiting groove (812) provided on the right side of the lower pressing block (84); a rotating rod (813) is rotatably connected to the middle of the limiting groove (812); an end of the rotating rod (813) away from the limiting groove (812) is fixedly connected to a rotating disk (814); a deflection handle (819) is fixedly connected to the side of the rotating disk (814); a return spring telescopic rod (818) is hingedly connected to the side of the rotating disk (814) facing away from the rotating rod (813); and an end of the return spring telescopic rod (818) away from the rotating disk (814) is hingedly connected to the lower pressing block (84); Two hinged plates (815) are hingedly connected on one side of the rotating disk (814) facing the rotating rod (813), and a sliding block (816) is hingedly connected to one end of the hinged plate (815) away from the rotating disk (814), and the sliding block (816) is slidably arranged in the limiting groove (812), and a soft rubber block (817) is fixedly connected to one end of the sliding block (816) away from the hinged plate (815), and the soft rubber block (817) contacts the side surface of one end of the third spring telescopic rod (811).

2. The kiln fume purification device according to claim 1, characterized in that: A discharge port (111) is provided on the left side of the bottom surface of the filter storage box (11), and the discharge port (111) is located directly above the discharge port (10). Two vertical slots (112) are provided on the left side of the filter storage box (11), and a fourth spring telescopic rod (113) is slidably arranged in the vertical slot (112), and the right end of the fourth spring telescopic rod (113) is an inclined surface, and the right end of the fourth spring telescopic rod (113) is in contact with the card slot of the leftmost filter screen (9) in the filter storage box (11), and the left ends of the two fourth spring telescopic rods (113) are fixedly connected with a horizontal plate (114); The left side of the horizontal plate (114) is fixedly connected with a vertical plate (115), the vertical plate (115) abuts against the right side of the top surface of the inverted U-shaped sliding shell (85), and the vertical plate (115) slides in two limiting slide rails (86), the vertical plate (115) is provided with two slots (116), and the two slots (116) are respectively located on the right side of the two third spring telescopic rods (811), the bottom surface of the vertical plate (115) is provided with a groove (117), and the deflection handle (819) abuts against the inner wall of the groove (117).

3. The kiln fume purification device according to claim 1, characterized in that: A push handle (118) passes through the right side of the filter storage box (11), a tension spring (119) is connected between the inner side of the push handle (118) and the right side of the filter storage box (11), and a push plate (1110) is fixedly connected to one side of the push handle (118) located inside the filter storage box (11).

4. The kiln fume purification device according to claim 1, characterized in that: The bottom of the filter box (3) is fixedly connected to a collecting box (12), the bottom surface of the collecting box (12) is fixedly connected to a connecting frame (13), and the connecting frame (13) is fixed on the right side of the kiln furnace body (1).

5. The kiln fume purification device according to claim 1, characterized in that: An opening pad (14) is fixedly connected to the right side of the bottom of the inner wall of the filter box (3), and the opening of the opening pad (14) is in communication with the discharge port (10).

6. The method for using the kiln fume purification device according to claim 2 is characterized in that: The steps include: S1: After the smoke in the furnace body (1) enters the filter box (3) along the exhaust pipe (2), the smoke is filtered by the filter net (9) inside the filter box (3), and the filtered smoke enters the exhaust pipe (7), thereby achieving the purpose of filtering the smoke; When the filter screen (9) inside the filter box (3) filters the smoke, the motor (82) drives the folding rod (83) to rotate, pushing the lower pressing block (84) and the inverted U-shaped sliding shell (85) below it to move downward in the limiting slide rail (86), and the brush block (87) inside the inverted U-shaped sliding shell (85) contacts the left side of the filter screen (9) inside the filter box (3) to scrape the left side of the filter screen (9), thereby preventing too much smoke and dust from adhering to the surface of the filter screen (9) and affecting the ventilation rate of the surface of the filter screen (9); S2: When the lower pressing block (84) moves downward, the rotating disk (814) rotates clockwise under the action of the reset force of the reset spring telescopic rod (818), so that the hinge plate (815) pushes the sliding block (816) and the soft rubber block (817) to slide on the inner wall of the limiting groove (812) and abut against the side surface of the corresponding third spring telescopic rod (811), so as to prevent the brush block (87) from moving rightward in the limiting slide rail (86) and pushing the third spring telescopic rod (811) to move rightward after the lower pressing block (84) moves downward; S3: When a large amount of smoke and dust is clogged in the mesh of the filter screen (9) inside the filter box (3), the impact of the airflow becomes greater, causing the filter screen (9) to move rightward on the inner wall of the filter box (3) to between the feed opening (111) and the discharge opening (10). At this time, the first spring telescopic rod (6) is compressed, and the brush block (87) moves rightward under the action of the second spring telescopic rod (88) and continues to contact the filter screen (9). When the brush block (87) moves rightward, it drives the slider (89) to move rightward and pushes the third spring telescopic rod (811) to compress. When the lower pressing block (84) moves upward to reset, the deflection handle (819) contacts the groove (117), driving the rotating disk (814) to deflect counterclockwise to cooperate with the hinge plate (815) to pull the sliding block (816) and the soft rubber block (817) to slide into the limiting groove (812), thereby releasing the resistance force on the third spring telescopic rod (811). At this time, the third spring telescopic rod (811) resets and stretches and is inserted into the slot (116). At this time, as the lower pressing block (84) moves downward again, the vertical plate (115) and the fourth spring telescopic rod (113) move downward at the same time, pushing the filter screen (9) on the right end of the fourth spring telescopic rod (113) to move downward, and the filter screen (9) inside the filter box (3) is squeezed downward and transported to the collection box (12) through the discharge port (10), thereby completing the replacement of the filter screen (9) inside the filter box (3).

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