Refractory brick firing furnace uniform in firing

Abstract

The utility model is applicable to the technical field of refractory brick firing, and provides a refractory brick firing furnace with uniform firing, which comprises a furnace body, a plurality of groups of heating wires arranged in the furnace body, a trolley arranged in the furnace body, an air draft pump and a filter shell fixedly connected to the outer surface of the furnace body, and a partition fixedly connected to the top wall of the filter shell, the two opposite sides of the partition plate are fixed to the inner wall of the filter shell, a filter screen is fixedly connected between the partition plate and the inner wall of the filter shell and arranged on the side close to the air draft pump, an arc-shaped rotating plate is hinged to the surface of the side, facing the air draft pump, of the partition plate, and the bottom of the other side of the arc-shaped rotating plate makes contact with the upper surface of the filter screen. According to the device, dust attached to the bottom of the filter screen falls off under shaking force, the problem that too much dust is attached to the bottom of the filter screen, and consequently meshes of the filter screen are blocked is avoided as much as possible, and the hot air filtering effect of the filter screen is further guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of refractory brick firing, and more specifically, to a refractory brick firing furnace capable of firing evenly. Background Art

[0002] Refractory bricks are referred to as fire bricks. They are refractory materials made by firing refractory clay or other refractory raw materials. They can be used as high-temperature building materials and structural materials for building kilns and various thermal equipment. They can withstand various physical and chemical changes and mechanical effects at high temperatures. They are mostly fired in a refractory brick firing furnace.

[0003] For example, the existing patent CN219347294U disclosed a refractory brick firing furnace. The prior art uses a first filter screen plate and a second filter screen plate to filter and intercept dust in the flue gas. The filtered flue gas can be connected to the exhaust pipe to reduce the firing temperature difference of the refractory brick blanks placed on both sides of the placement plate, thereby improving the heating uniformity of the refractory brick blanks.

[0004] However, the inventor discovered that the existing patent has the following problems when in use: although the existing patent is provided with a filter screen to filter dust in hot air, the filtered dust will adhere to the filter screen under the continuous push of the airflow. When used for a long time, more and more dust will adhere to the filter screen, causing the mesh holes on the filter screen to be blocked, affecting the air permeability of the filter screen and reducing the air volume received by the refractory bricks. In response to the above problems, the inventor has designed a refractory brick firing furnace with uniform firing. Utility Model Content

[0005] In view of the shortcomings of the prior art, the purpose of the utility model is to provide a refractory brick firing furnace that avoids as much as possible the problem of excessive dust adhering to the bottom of the filter screen, which causes the filter screen mesh holes to be blocked, and further ensures the filtering effect of the filter screen on hot air and the uniform firing of the refractory brick.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A refractory brick firing furnace with uniform firing comprises a furnace body, a plurality of groups of heating wires are arranged in the furnace body, a trolley is arranged in the furnace body, an exhaust pump and a filter housing are fixedly connected to the outer surface of the furnace body, a partition is fixedly connected to the top wall of the filter housing, opposite sides of the partition are respectively fixed to the inner wall of the filter housing, a filter screen is fixedly connected between the partition and the inner wall of the filter housing, the filter screen is arranged on the side close to the exhaust pump, an arc-shaped rotating plate is hinged on the surface of one side of the partition facing the exhaust pump, the bottom of the other side of the arc-shaped rotating plate contacts the upper surface of the filter screen, and the concave surface of the arc-shaped rotating plate is arranged downward.

[0008] The utility model is further configured as follows: the extraction pipe of the exhaust pump passes through the filter shell, the output port of the exhaust pump is fixedly connected with a delivery pipe, the other end of the delivery pipe extends to the rear surface of the furnace body and passes through the furnace body, the upper surface of the filter shell is fixedly connected with an exhaust pipe, the upper end of the exhaust pipe extends to the upper surface of the furnace body and passes through the furnace body.

[0009] The utility model is further configured as follows: a connecting pipe is fixedly connected to the rear surface of the trolley, the outer surface of the connecting pipe matches the inner wall of one end of the conveying pipe located in the furnace body, and the connecting pipe is plugged into the conveying pipe.

[0010] The utility model is further configured as follows: the plate body of the trolley is hollow, and an air outlet hole communicating with the interior of the trolley is provided on the plate body of the trolley.

[0011] The utility model is further configured as follows: two slideways are provided on the bottom wall of the furnace body, and the two slideways extend out of the outer surface of the furnace body; pulleys are provided at the four corners of the bottom of the trolley, and the pulleys slide in the slideways.

[0012] The utility model is further configured as follows: a limiting ring is fixedly connected to the surface of the side of the partition facing the exhaust pump, the arc-shaped rotating plate is slidably sleeved on the outer surface of the limiting ring, a tension spring is fixedly connected between the lower surface of the arc-shaped rotating plate and the partition, and the tension spring is movably sleeved on the outer surface of the limiting ring.

[0013] The utility model is further configured as follows: the bottom of the filter housing is funnel-shaped, a drawer is provided on the outer surface of the filter housing, one side of the drawer slides through the filter housing and is slidably connected to the bottom wall of the filter housing.

[0014] The utility model is further configured as follows: a rotating shaft is rotatably connected between the inner walls on both sides opposite to each other at the bottom of the filter housing, a baffle is fixedly sleeved on the rotating shaft, the baffle can seal the bottom of the filter housing, a pulling wire is fixedly connected to the lower surface of the arc-shaped rotating plate, the lower end of the pulling wire passes through the mesh of the filter screen and is fixed to the upper surface of the baffle.

[0015] The advantage of the utility model is that when the exhaust pump stops running, the airflow no longer pushes the arc-shaped rotating plate, so the arc-shaped rotating plate rotates counterclockwise under the action of inertia and the pulling of the tension spring, so that the arc-shaped rotating plate can hit the top of the filter screen, thereby causing the filter screen to shake, so that the dust attached to the bottom of the filter screen falls off under the shaking force, and the problem of excessive dust adhering to the bottom of the filter screen, which causes the filter screen mesh to be blocked, is avoided as much as possible, and the filtering effect of the filter screen on hot air is further guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of a refractory brick firing furnace capable of firing evenly according to the utility model;

[0017] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0018] Figure 3 This is a schematic diagram of the trolley structure of the utility model;

[0019] Figure 4 It is a side plan view of the filter housing of the utility model.

[0020] In the figure: 1. furnace body; 2. trolley; 3. exhaust pump; 4. filter housing; 5. exhaust pipe; 6. delivery pipe; 7. connecting pipe; 8. air outlet; 9. slideway; 10. pulley; 11. partition; 12. filter screen; 13. arc-shaped rotating plate; 14. limiting ring; 15. tension spring; 16. rotating shaft; 17. baffle; 18. pull line; 19. drawer. DETAILED DESCRIPTION

[0021] See also Figure 1-4 , the utility model provides the following technical solutions:

[0022] Specifically, it refers to a refractory brick firing furnace with uniform firing, including a furnace body 1, a plurality of groups of heating wires are arranged in the furnace body 1, a trolley 2 is arranged in the furnace body 1, an exhaust pump 3 and a filter housing 4 are fixedly connected to the outer surface of the furnace body 1, an extraction pipe of the exhaust pump 3 penetrates into the filter housing 4, an output port of the exhaust pump 3 is fixedly connected to a delivery pipe 6, the other end of the delivery pipe 6 extends to the rear surface of the furnace body 1 and penetrates into the furnace body 1, an exhaust pipe 5 is fixedly connected to the upper surface of the filter housing 4, the upper end of the exhaust pipe 5 extends to the upper surface of the furnace body 1 and penetrates into the furnace body 1, a connecting pipe 7 is fixedly connected to the rear surface of the trolley 2, the outer surface of the connecting pipe 7 is consistent with the inner wall of one end of the delivery pipe 6 located in the furnace body 1, so when the trolley 2 is transported into the furnace body 1, the connecting pipe 7 is inserted into the delivery pipe 6, the plate body of the trolley 2 is hollow, and an air outlet 8 connected to the interior thereof is opened on the plate body of the trolley 2;

[0023] When in use, the refractory bricks are placed on the plate of the trolley 2 in sequence, and the refractory bricks need to be placed at a certain distance. The furnace door on the furnace body 1 is closed, and multiple groups of heating wires are running to dissipate heat, so that the refractory bricks on the trolley 2 can be fired. At the same time, the exhaust pump 3 is running, and the exhaust pump 3 extracts the heat in the furnace body 1 through the exhaust pipe 5. The hot air is filtered by the filter housing 4 and then transported to the trolley 2 by the delivery pipe 6. At the same time, the hot air is finally blown to the refractory bricks through the air outlet 8. The above method allows the heat to be evenly wrapped around the refractory bricks on the trolley 2, which is beneficial to improving the overall firing quality of the refractory bricks.

[0024] In this embodiment, a sealing rubber ring is provided on the outer surface of the connecting pipe 7, which increases the sealing between the connecting pipe 7 and the conveying pipe 6, avoids leakage during hot air delivery as much as possible, and further ensures the stability of hot air output from the air outlet 8 on the trolley 2;

[0025] In this embodiment, the outer surfaces of the delivery pipe 6, the filter housing 4 and the exhaust pipe 5 are all wrapped with heat insulating materials, which reduces the problem of excessive heat loss in the process of hot air being delivered to the trolley 2, and ensures the firing effect of the refractory bricks;

[0026] Specifically, two slideways 9 are provided on the bottom wall of the furnace body 1, and the two slideways 9 extend out of the outer surface of the furnace body 1. Pulleys 10 are provided at the four corners of the bottom of the trolley 2. The pulleys 10 slide in the slideways 9. At the same time, the pulleys 10 have a locking structure. The pulleys 10 with the locking structure are the existing known models: 2-5T01SB4-401D medium-sized 5-inch polyurethane universal wheels with brakes. Therefore, the trolley 2 slides into the slideways 9 through the pulleys 10, so that the trolley 2 is transported into the furnace body 1.

[0027] Specifically, a partition 11 is fixedly connected to the top wall of the filter housing 4, and opposite sides of the partition 11 are respectively fixed to the inner wall of the filter housing 4, and a filter screen 12 is fixedly connected between the partition 11 and the inner wall of the filter housing 4. At the same time, the filter screen 12 is arranged on a side close to the exhaust pump 3. Therefore, when the exhaust pipe 5 transports and extracts hot air, the filter screen 12 can filter dust in the hot air, and try to avoid the hot air containing impurities from being transported into the trolley 2, which causes the problem of clogging the air outlet 8;

[0028] In this embodiment, the filter screen 12 is made of stainless steel wire, which can avoid the problem of damage to the filter screen 12 caused by being in a high temperature environment for a long time.

[0029] Specifically, a curved rotating plate 13 is hingedly connected to the surface of one side of the partition 11 facing the exhaust pump 3, the bottom of the other side of the curved rotating plate 13 contacts the upper surface of the filter screen 12, the concave surface of the curved rotating plate 13 is arranged downward, a limiting ring 14 is fixedly connected to the surface of the side of the partition 11 facing the exhaust pump 3, the curved rotating plate 13 is slidably sleeved on the outer surface of the limiting ring 14, a tension spring 15 is fixedly connected between the lower surface of the curved rotating plate 13 and the partition 11, and the tension spring 15 is movably sleeved on the outer surface of the limiting ring 14;

[0030] Therefore, when the airflow flows in the filter housing 4, the airflow will form a thrust on the concave surface of the arc-shaped rotating plate 13, so that the arc-shaped rotating plate 13 rotates clockwise, and the tension spring 15 is stretched at the same time. When the exhaust pump 3 stops running, the airflow no longer pushes the arc-shaped rotating plate 13, so the arc-shaped rotating plate 13 rotates counterclockwise under the inertia and the pulling action of the tension spring 15, so that the arc-shaped rotating plate 13 can hit the top of the filter screen 12, so that the filter screen 12 is shaken, so that the dust attached to the bottom of the filter screen 12 falls off under the shaking force, and the problem of excessive dust attached to the bottom of the filter screen 12 causing the mesh of the filter screen 12 to be blocked is avoided as much as possible, and the filtering effect of the filter screen 12 on the hot air is further guaranteed;

[0031] Specifically, the bottom of the filter housing 4 is funnel-shaped, and a drawer 19 is provided on the outer surface of the filter housing 4. One side of the drawer 19 slides through the filter housing 4 and is slidably connected to the bottom wall of the filter housing 4. A rotating shaft 16 is rotatably connected between the inner walls on both sides of the bottom of the filter housing 4. A baffle 17 is fixedly sleeved on the rotating shaft 16. The baffle 17 can seal the bottom of the filter housing 4. A pulling wire 18 is fixedly connected to the lower surface of the arc-shaped rotating plate 13. The lower end of the pulling wire 18 passes through the mesh of the filter screen 12 and is fixed to the upper surface of the baffle 17.

[0032] When the arc-shaped rotating plate 13 rotates clockwise, the pulling line 18 will pull the baffle 17, so that the baffle 17 blocks the bottom of the filter housing 4. This method can avoid the airflow blowing the dust in the drawer 19 when the hot air is transported in the filter housing 4, further ensuring the dust collection effect. At the same time, the dust in the drawer 19 can be cleaned when the exhaust pump 3 is running.

[0033] The working principle of the refractory brick firing furnace with uniform firing provided by the utility model is as follows: when the air flow flows in the filter housing 4, the air flow will form a thrust on the concave surface of the arc-shaped rotating plate 13, so that the arc-shaped rotating plate 13 rotates clockwise, and at the same time the tension spring 15 is stretched, and at the same time the pulling line 18 will pull the baffle 17, so that the baffle 17 blocks the bottom of the filter housing 4. When the exhaust pump 3 stops running, the air flow no longer pushes the arc-shaped rotating plate 13. Therefore, the arc-shaped rotating plate 13 rotates counterclockwise under the action of inertia and the pulling of the tension spring 15, so that the arc-shaped rotating plate 13 can hit the top of the filter screen 12, so that the filter screen 12 is shaken, so that the dust attached to the bottom of the filter screen 12 falls off under the shaking force.

Claims

1. A refractory brick firing furnace for uniform firing, comprising a furnace body (1), wherein a plurality of groups of heating wires are arranged in the furnace body (1), characterized in that: A trolley (2) is provided in the furnace body (1); an exhaust pump (3) and a filter housing (4) are fixedly connected to the outer surface of the furnace body (1); a partition (11) is fixedly connected to the top wall of the filter housing (4); opposite sides of the partition (11) are respectively fixed to the inner wall of the filter housing (4); a filter screen (12) is fixedly connected between the partition (11) and the inner wall of the filter housing (4); the filter screen (12) is arranged on a side close to the exhaust pump (3); an arc-shaped rotating plate (13) is hingedly connected to the surface of one side of the partition (11) facing the exhaust pump (3); the bottom of the other side of the arc-shaped rotating plate (13) contacts the upper surface of the filter screen (12); and the concave surface of the arc-shaped rotating plate (13) is arranged downward.

2. A refractory brick firing furnace with uniform firing according to claim 1, characterized in that: The extraction pipe of the exhaust pump (3) penetrates into the filter housing (4); the output port of the exhaust pump (3) is fixedly connected to a delivery pipe (6); the other end of the delivery pipe (6) extends to the rear surface of the furnace body (1) and penetrates into the furnace body (1); the upper surface of the filter housing (4) is fixedly connected to an exhaust pipe (5); the upper end of the exhaust pipe (5) extends to the upper surface of the furnace body (1) and penetrates into the furnace body (1).

3. A refractory brick firing furnace with uniform firing according to claim 2, characterized in that: A connecting pipe (7) is fixedly connected to the rear surface of the trolley (2); the outer surface of the connecting pipe (7) matches the inner wall of one end of the conveying pipe (6) located in the furnace body (1); and the connecting pipe (7) is plugged into the conveying pipe (6).

4. A refractory brick firing furnace with uniform firing according to claim 3, characterized in that: The plate body of the trolley (2) is hollow inside, and an air outlet hole (8) communicating with the interior of the trolley (2) is provided on the plate body of the trolley (2).

5. A refractory brick firing furnace with uniform firing according to claim 4, characterized in that: The bottom wall of the furnace body (1) is provided with two slideways (9), and the two slideways (9) extend out of the outer surface of the furnace body (1). Pulleys (10) are provided at the four corners of the bottom of the trolley (2), and the pulleys (10) slide in the slideways (9).

6. A refractory brick firing furnace with uniform firing according to claim 5, characterized in that: A limiting ring (14) is fixedly connected to a surface of one side of the partition (11) facing the exhaust pump (3); the arc-shaped rotating plate (13) is slidably sleeved on the outer surface of the limiting ring (14); a tension spring (15) is fixedly connected between the lower surface of the arc-shaped rotating plate (13) and the partition (11); the tension spring (15) is movably sleeved on the outer surface of the limiting ring (14).

7. A refractory brick firing furnace with uniform firing according to claim 6, characterized in that: The bottom of the filter housing (4) is funnel-shaped, and a drawer (19) is provided on the outer surface of the filter housing (4). One side of the drawer (19) slides through the filter housing (4) and is slidably connected to the bottom wall of the filter housing (4).

8. The refractory brick firing furnace with uniform firing according to claim 7, characterized in that: A rotating shaft (16) is rotatably connected between two inner walls on opposite sides of the bottom of the filter housing (4); a baffle (17) is fixedly sleeved on the rotating shaft (16); the baffle (17) can seal the bottom of the filter housing (4); a pulling wire (18) is fixedly connected to the lower surface of the arc-shaped rotating plate (13); the lower end of the pulling wire (18) passes through the mesh of the filter screen (12) and is fixed to the upper surface of the baffle (17).

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