Grate cooler capable of reducing loss of ceramic balls

Abstract

The utility model discloses a grate cooler capable of reducing loss of ceramic balls, which comprises a machine body, a rotary kiln fixedly mounted above one end of the machine body, a grate bed mounted inside the machine body, a packed bed arranged below the grate bed, a cobblestone bed laid on the surface of the packed bed, an upper grate plate frame mounted below the cobblestone bed, and a lower grate plate frame mounted below the upper grate plate frame. A lower grid plate frame is installed below the upper grid plate frame, through holes are formed in the surface of the lower grid plate frame and the surface of the upper grid plate frame, and ceramic balls are placed in the through holes; according to the grate cooler, the upper grate plate frame and the lower grate plate frame are arranged in the machine body, the cobblestone bed is arranged on the upper grate plate frame, the cobblestones are laid on the cobblestone bed, the ceramic balls are laid below the cobblestones, the ceramic balls are used for replacing the cobblestones, the ventilation effect of the grate cooler is improved, resistance is reduced, and the clinker temperature is lowered; clinker is laid on the cobblestones, so that the ceramic balls on the lower layer can be protected.

Description

Technical Field

[0001] The utility model relates to the technical field of grate coolers, in particular to a grate cooler capable of reducing the loss of ceramic balls. Background Art

[0002] With the technological upgrade of grate coolers, the fourth-generation grate coolers arrange and fix all the grate plates on a movable plate. When in use, a number of pebbles are placed on the inside of the grate plates. With the help of the gaps between the pebbles, air circulation is achieved. The pebbles lower the temperature of the cement and prevent damage to the grate plates. However, after cooling, the pebbles and cement in the grate plates are mixed together. After the workers shovel them out with a shovel, they have to be screened and separated, which is labor-intensive.

[0003] A grate plate of a grate cooler is disclosed in the existing publication number CN216644969U. During use of the utility model, the device is fitted and installed in the grate plate. By removing the device, the pebbles and cement are separated with the help of the screening grid plate. The separation is convenient, and workers do not need to use a shovel to shovel a grate plate multiple times, which greatly reduces the labor intensity of the work. A short rod, a first curved piece and a second curved piece are designed at the position of the fitting plate. The connection between the short rod and the first curved piece can be used to fix the shovel head of the shovel or use an insertion rod to fix the device. There is no need for manual removal. The device can be fixed, taken out and moved with the help of tools, which is very convenient.

[0004] The paving materials placed in the above-mentioned grate cooler are pebbles, which are used to increase ventilation. However, during use, the pebbles are lost a lot, the cement clinker temperature is high, the fluidity is poor, the clinker temperature drops slowly, and the resistance increases, resulting in increased energy consumption inside the grate cooler, which is not conducive to energy saving.

[0005] Therefore, those skilled in the art provide a grate cooler for reducing ceramic ball loss to solve the problems raised in the above background technology. Utility Model Content

[0006] The utility model aims to provide a grate cooler for reducing ceramic ball loss, so as to solve the problem that the manual opening and closing of the feed port of the existing PP pickling tank proposed in the above background technology is slow in efficiency and easily causes the volatilization of the solution in the tube.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A grate cooler for reducing ceramic ball consumption comprises: a machine body, a rotary kiln is fixedly installed above one end of the machine body, a return air duct is connected to one side of the rotary kiln, a grate bed is installed inside the machine body, a filler bed is arranged below the grate bed, a pebble bed is laid on the surface of the filler bed, an upper grate plate frame is installed below the pebble bed, and a lower grate plate frame is installed below the upper grate plate frame, through holes are opened on the surfaces of the lower grate plate frame and the upper grate plate frame, and ceramic balls are placed inside the through holes;

[0009] An air outlet is installed at one end of the return air duct away from the rotary kiln, a through pipe is arranged inside the return air duct, a pipe interlayer is arranged between the through pipe and the return air duct, and an alloy heating wire is installed inside the pipe interlayer.

[0010] As a preferred solution of the utility model, the front wall of the machine body is provided with a push groove, a push plate is installed inside the push groove, a wiping roller is installed on one side of the push plate, and a friction strip is provided on the surface of the wiping roller.

[0011] As a preferred solution of the utility model, a wind chamber is installed below the machine body, and a heat dissipation fan is connected to the outside of the wind chamber.

[0012] As a preferred solution of the utility model, an air return port is arranged at the inner top of the machine body, and a crushing roller for crushing clinker is installed at the tail of the machine body, and a conveyor is installed below the crushing roller.

[0013] As a preferred solution of the utility model, the air outlet is connected to the interior of the rotary kiln through a return air duct, and the distance between the return air duct and the pipe interlayer is CM, and the inner wall of the alloy heating wire fits the surface of the pipe interlayer.

[0014] As a preferred solution of the utility model, the return air duct is interconnected with the interior of the air outlet, and a fan is installed on the end surface of the duct interlayer close to the air outlet.

[0015] As a preferred solution of the utility model, the ceramic balls are evenly distributed along the surface of the lower grate plate frame, and the lower grate plate frame and the upper grate plate frame are parallel to each other.

[0016] As a preferred solution of the utility model, the push groove and the push plate cooperate with each other to form a sliding structure, and the wiping roller and the push plate are movably connected.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] 1. An upper grate frame and a lower grate frame are arranged inside the machine body, a pebble bed is arranged on the upper grate frame and paved with pebbles, ceramic balls are laid under the pebbles, and ceramic balls are used instead of pebbles, which is beneficial to increase the ventilation effect of the grate cooler, reduce resistance, and lower the clinker temperature. In addition, pebbles are also laid on the ceramic balls, and clinker is laid on the pebbles, which can protect the ceramic balls in the lower layer and reduce the wear on the ceramic balls.

[0019] 2. Through the setting of the return air duct, the return air duct can introduce the return air in the rotary kiln into the air outlet, and use the waste heat to heat the inside of the grate cooler. The return air duct is provided with a pipe interlayer, and the pipe interlayer is provided with an alloy heating wire. When the clinker thickness reaches a certain thickness, the alloy heating wire is used to increase the air temperature in the return air duct. When the clinker thickness does not reach a certain thickness, the air consumption of the high-temperature section grate cooler is reduced as much as possible until the clinker layer reaches a certain thickness, and the air consumption of the high-temperature section fan is gradually increased, so that the temperature is increased in stages, which is beneficial to energy saving and consumption reduction. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The schematic diagram of the structure of a grate cooler for reducing ceramic ball loss.

[0021] Figure 2 A schematic diagram of a pebble bed structure for reducing ceramic ball wear.

[0022] Figure 3 The present invention is a structural schematic diagram of an upper grate plate frame and a lower grate plate frame in a grate cooler for reducing ceramic ball loss.

[0023] Figure 4 The present invention is a schematic diagram of the split structure of the air outlet and the return air duct in a grate cooler for reducing the loss of ceramic balls.

[0024] Figure 5 The present invention is a schematic diagram of the structure of a wiping roller in a grate cooler for reducing the loss of ceramic balls.

[0025] Figure 6 The figure is a schematic diagram of the internal decomposition structure of the return air duct in a grate cooler for reducing ceramic ball loss.

[0026] In the figure: 1. machine body; 101. push trough; 102. push plate; 103. rubbing roller; 104. friction strip; 2. rotary kiln; 3. grate bed; 4. wind chamber; 5. heat dissipation fan; 6. air outlet; 7. return air duct; 701. through pipe; 702. fan; 703. pipe interlayer; 704. alloy heating wire; 8. return air outlet; 9. crushing roller; 10. conveyor; 11. packing bed; 12. pebble bed; 13. upper grate plate frame; 14. through hole; 15. lower grate plate frame; 16. ceramic ball. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] See also Figure 1 to Figure 6 The embodiment of the utility model provides a grate cooler for reducing ceramic ball loss, comprising: a machine body 1, a rotary kiln 2 is fixedly installed above one end of the machine body 1, a return air duct 7 is connected to one side of the rotary kiln 2, an air outlet 6 is installed at one end of the return air duct 7 away from the rotary kiln 2, a through pipe 701 is arranged inside the return air duct 7, and a pipe interlayer 703 is arranged between the through pipe 701 and the return air duct 7, an alloy heating wire 704 is installed inside the pipe interlayer 703, the air outlet 6 is interconnected with the interior of the rotary kiln 2 through the return air duct 7, and the distance between the return air duct 7 and the pipe interlayer 703 is 8CM, the inner wall of the alloy heating wire 704 is in contact with the surface of the pipe interlayer 703, the return air duct 7 is interconnected with the interior of the air outlet 6, and a fan 702 is installed on the end surface of the pipe interlayer 703 close to the air outlet 6;

[0029] Specifically, the rotary kiln 2 is connected to the return air duct 7. The waste heat hot air in the rotary kiln 2 will pass through the return air duct 7 and enter the interior of the grate cooler from the air outlet 6. While collecting the waste heat, the hot air temperature inside the grate cooler is increased. The clinker is spread on the grate bed 3. When the clinker thickness reaches about 1 meter, the alloy heating wire 704 is used to increase the hot air temperature inside the return air duct 7, and the fan 702 is used to assist the air outlet, increase the air consumption at the air outlet 6, and increase the air consumption in stages according to the thickness of the clinker. During the startup process, the air consumption of the grate cooler in the high-temperature section is reduced as much as possible until the clinker layer reaches about 1 meter. The air consumption in the high-temperature section is gradually increased to help reduce energy consumption.

[0030] An air chamber 4 is installed below the machine body 1, a heat dissipation fan 5 is connected to the outside of the air chamber 4, a return air port 8 is provided at the inner top of the machine body 1, and a crushing roller 9 for crushing clinker is installed at the tail of the machine body 1, and a conveyor 10 is installed below the crushing roller 9;

[0031] Specifically, the air chamber 4 is connected with the interior of the machine body 1, and the air chamber 4 cooperates with the heat dissipation fan 5. The heat dissipation fan 5 blows air into the interior of the air chamber 4 to increase the ventilation effect inside the grate cooler. After the clinker enters the grate bed 3, it is crushed by the crushing roller 9 and finally transported by the conveyor 10. The return air port 8 is a secondary return air port, which is used to recover the waste heat inside the grate cooler.

[0032] A grate bed 3 is installed inside the machine body 1, a packing bed 11 is arranged below the grate bed 3, a pebble bed 12 is laid on the surface of the packing bed 11, an upper grate plate frame 13 is installed below the pebble bed 12, and a lower grate plate frame 15 is installed below the upper grate plate frame 13, through holes 14 are opened on the surfaces of the lower grate plate frame 15 and the upper grate plate frame 13, ceramic balls 16 are placed inside the through holes 14, and the ceramic balls 16 are evenly distributed along the surface of the lower grate plate frame 15, and the lower grate plate frame 15 and the upper grate plate frame 13 are parallel to each other;

[0033] Specifically, from top to bottom, clinker is laid first, pebbles are laid under the clinker, and ceramic balls 16 are laid under the pebbles. Ceramic balls 16 replace pebbles, increase the ventilation effect of the grate cooler, reduce resistance, and lower the clinker temperature. At the same time, pebbles are laid above the ceramic balls 16 and clinker is added to reduce the loss of ceramic balls 16, thereby ensuring efficiency improvement. In addition, the ceramic balls 16 have regular shapes and are not easily stuck in the grate seams.

[0034] A push groove 101 is provided on the front wall of the machine body 1, a push plate 102 is installed inside the push groove 101, a wiping roller 103 is installed on one side of the push plate 102, a friction strip 104 is provided on the surface of the wiping roller 103, the push groove 101 and the push plate 102 cooperate with each other to form a sliding structure, and the wiping roller 103 and the push plate 102 are movably connected.

[0035] Specifically, by setting the push groove 101 and utilizing the movement of the push plate 102 inside the push groove 101, the movably connected wiping roller 103 on the push plate 102 will utilize the friction between itself and the ceramic ball 16 above to further adjust the ceramic ball 16 on the reverse side, thereby preventing the ceramic ball 16 from always remaining in the same position, which may easily cause loss. The wiping roller 103 is located below the lower grate frame 15, and the friction strips 104 on the surface of the wiping roller 103 will generate friction with the surface of the ceramic ball 16, thereby rubbing the ceramic ball 16, so that the ceramic ball 16 with a regular shape can roll and adjust the spherical surface, which is beneficial to turning over the ceramic ball 16 plugged inside.

[0036] The working principle of the utility model is:

[0037] When the utility model is used, clinker is added to the inside of the grate cooler through the rotary kiln 2, and the clinker will be spread on the grate bed 3. The grate bed 3 adopts an inclined structure design, and the clinker will flow on the grate bed 3 to increase the fluidity of the clinker. The heat dissipation fan 5 will blow air into the wind chamber 4, and the wind will flow upward from the wind chamber 4. The wind will pass through the ceramic balls 16 spread on the lower grate plate frame 15. Ceramic balls 16 with a diameter of 20mm-30mm are used instead of pebbles. After spreading, 20 cm thick pebbles are spread on the ceramic balls 16, and then 30 cm thick clinker is spread on top. When the thickness of the clinker inside the grate cooler does not reach one meter, the remaining clinker in the rotary kiln 2 Heat will pass through the return air duct 7 and enter the interior of the machine body 1 from the air outlet 6. When the clinker thickness reaches about one meter, the alloy heating wire 704 has the characteristic of heating by electricity. After the alloy heating wire 704 is energized and heated, it will increase the temperature of the pipe interlayer 703 and the inside of the return air duct 7, increase the hot air temperature inside the return air duct 7, start the fan 702, and the fan 702 will increase the air consumption at the air outlet 6. Then, when the machine is turned on, before the clinker thickness reaches one meter, the air consumption is reduced to reduce energy consumption. After reaching the thickness of one meter, the air consumption is increased to reduce energy consumption. Finally, the clinker will be crushed by the crushing roller 9 and then output by the conveyor 10.

[0038] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A grate cooler for reducing ceramic ball loss, characterized in that: include: A machine body (1), a rotary kiln (2) is fixedly mounted above one end of the machine body (1), a return air duct (7) is connected to one side of the rotary kiln (2), a grate bed (3) is mounted inside the machine body (1), a packing bed (11) is arranged below the grate bed (3), a pebble bed (12) is laid on the surface of the packing bed (11), an upper grate plate frame (13) is mounted below the pebble bed (12), a lower grate plate frame (15) is mounted below the upper grate plate frame (13), through holes (14) are opened on the surfaces of the lower grate plate frame (15) and the upper grate plate frame (13), and ceramic balls (16) are placed inside the through holes (14); An air outlet (6) is installed at one end of the return air duct (7) away from the rotary kiln (2), a through pipe (701) is arranged inside the return air duct (7), a pipe interlayer (703) is arranged between the through pipe (701) and the return air duct (7), and an alloy heating wire (704) is installed inside the pipe interlayer (703).

2. A grate cooler for reducing ceramic ball loss according to claim 1, characterized in that: The front wall of the machine body (1) is provided with a push groove (101), a push plate (102) is installed inside the push groove (101), a wiping roller (103) is installed on one side of the push plate (102), and a friction strip (104) is provided on the surface of the wiping roller (103).

3. A grate cooler for reducing ceramic ball loss according to claim 1, characterized in that: A wind chamber (4) is installed below the machine body (1), and a heat dissipation fan (5) is connected to the outside of the wind chamber (4).

4. A grate cooler for reducing ceramic ball loss according to claim 1, characterized in that: The inner top of the machine body (1) is provided with an air return port (8), and a crushing roller (9) for crushing clinker is installed at the tail of the machine body (1), and a conveyor (10) is installed below the crushing roller (9).

5. The grate cooler for reducing ceramic ball loss according to claim 1, characterized in that: The air outlet (6) is connected to the interior of the rotary kiln (2) through the return air duct (7), and the distance between the return air duct (7) and the pipeline interlayer (703) is 8CM. The inner wall of the alloy heating wire (704) and the surface of the pipeline interlayer (703) are in contact with each other.

6. A grate cooler for reducing ceramic ball loss according to claim 1, characterized in that: The return air duct (7) is interconnected with the interior of the air outlet (6), and a fan (702) is installed on the end surface of the duct interlayer (703) close to the air outlet (6).

7. A grate cooler for reducing ceramic ball loss according to claim 1, characterized in that: The ceramic balls (16) are evenly distributed along the surface of the lower grate plate frame (15), and the lower grate plate frame (15) and the upper grate plate frame (13) are parallel to each other.

8. A grate cooler for reducing ceramic ball loss according to claim 2, characterized in that: The push groove (101) and the push plate (102) cooperate with each other to form a sliding structure, and the wiping roller (103) and the push plate (102) are movably connected.

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