Cooling system outside kiln

Abstract

The invention discloses a cooling system outside a kiln, which comprises a plurality of bins, the side wall of each bin is provided with two exhaust inlets, one exhaust inlet is positioned at the 30% material level of the bin, and the other exhaust inlet is positioned at the 60% material level of the bin. The air suction openings are connected with air suction pipes, the other ends of the air suction pipes are communicated with the dust remover, connecting clamping bases are arranged on the outer side of the stock bin and correspond to the air suction openings in a one-to-one mode, the air suction pipes are connected with the stock bin through connecting structures, the connecting structures are detachably connected with the connecting clamping bases, the connecting structures comprise connecting bases and clamping assemblies, and connecting holes are formed in the connecting bases. The connecting hole corresponds to the air suction opening and is connected with the air suction pipe, a clamping opening is formed in the connecting clamping base, and the clamping assembly corresponds to the clamping opening. The problem that quick lime is not cooled thoroughly in the prior art is solved.

Description

Technical Field

[0001] The present invention belongs to the field of quicklime cooling equipment, and particularly relates to an external-kiln cooling system. Background Art

[0002] In the limestone sintering process, after the limestone is calcined in the lime kiln, the limestone material generates quicklime, and the quicklime is sent into a cooler for cooling so as to reduce the temperature of the lime to an acceptable range, and then the lime is collected in a silo. However, in actual production, in order to save costs, the lime cooling time is insufficient. Especially when the lime kiln is operating at full capacity, the ash discharging speed is increased, and the cooling time is even shorter, and the temperature rise is more prominent. At the same time, after the lime enters the finished product silo, it is in a relatively enclosed space, without convective refrigeration, and the heat exchange is slow.

[0003] A cooling device for a sintering furnace with the publication number CN213273786U includes: a housing which is annularly arranged around the cooling tunnel and is hermetically connected to the sintering furnace; an opening is provided at the top of the housing; a water inlet is provided at the bottom of the housing; and a water outlet is provided on one side surface at the top of the housing. Cooling is carried out by means of water cooling. However, since the boiling point of water is 100 °C, while the sintering temperature of quicklime can reach 1000 °C, the cooling effect of using this device is limited.

[0004] A furnace-type cooling device with the publication number CN103868364A is disclosed, which includes: a feeding device, a pre-storage area, an annular flue, a cooling area, a air distribution device and a discharging device; wherein, the feeding device, the pre-storage area, the cooling area and the discharging device are arranged from top to bottom in the furnace-type cooling device; the annular flue is arranged on the periphery of the pre-storage area, and the lower end of the annular flue communicates with the cooling area; the air distribution device is arranged at the lower part of the cooling area; and the inner walls of the pre-storage area, the annular flue and the cooling area are made of refractory bricks containing silicon carbide. The position of the cooling area of this device is relatively low, so the cooling effect is not good.

[0005] Therefore, an external-kiln cooling device is needed to solve the above problems, so that the quicklime can still continue to be cooled in the silo. Summary of the Invention

[0006] The purpose of the present invention is to provide an external-kiln cooling system to solve the problem of incomplete cooling of quicklime in the prior art.

[0007] To achieve the above object, the present invention adopts the following technical solutions: An external kiln cooling system includes a plurality of bins. At least two air inlets are provided on the side walls of the bins. An air suction pipe is connected to the air inlets, and the other end of the air suction pipe is communicated with a dust collector. A connection clamp seat is arranged outside the bins, and the connection clamp seats correspond to the air inlets one by one. The air suction pipe and the bins are connected through a connection structure, and the connection structure is detachably connected to the connection clamp seat.

[0008] As a further description of the above technical solution: There are two air inlets. The position of one air inlet is at the 30% material level of the bin, and the other air inlet is at the 60% material level of the bin.

[0009] As a further description of the above technical solution: The connection structure includes a connection seat and a clamping component. A connection hole is provided on the connection seat, and the connection hole corresponds to the air inlet. The connection hole is connected to the air suction pipe. A clamping interface is provided on the connection clamp seat, and the clamping component corresponds to the clamping interface. The clamping component includes a clamping block, a spring, and a dial block. An installation hole is provided on the connection seat, and the installation hole corresponds to the clamping interface. The clamping block is slidably arranged in the installation hole. A sliding hole is also provided on the connection seat, and the sliding hole is communicated with the installation hole. The dial block is slidably arranged in the sliding hole. One end of the dial block is fixedly connected to the clamping block. The spring is arranged in the installation hole, and the spring is located between the clamping block and the bottom of the installation hole.

[0010] As a further description of the above technical solution: A wedge surface from top to bottom is provided at one end of the installation hole corresponding to the clamping interface. During installation, just press down directly, which is convenient for installation.

[0011] As a further description of the above technical solution: A mesh sheet is arranged between the connection hole and the air inlet. To prevent the materials in the bin from being sucked into the air pipe

[0012] As a further description of the above technical solution: A sealing gasket is arranged between the connection seat and the bin. To prevent the ineffective air outside the bin from being sucked into the pipeline, resulting in reduced effect and waste of energy.

[0013] As a further description of the above technical solution: A wind explosion port communicated with the connection hole is also provided on the connection seat. The wind explosion port is inclined and forms an angle with the air inlet. A connection pipe is provided on the wind explosion port, and an air cannon is arranged at one end of the connection pipe.

[0014] In summary, due to the adoption of the above technical solutions, the beneficial effects of the present invention are:

[0015] (1) The quicklime in the silo can be further cooled by coordinating multiple pipelines. The cooling air flow rate of the main pipe is about 10,000 m3 / h. It can cool a silo independently or multiple silos in a linked manner.

[0016] (2) Two air inlets are set at 30% and 60% material levels to ensure that there is material for cooling and avoid short-circuiting by empty bins, which would cause wild wind to be sucked in. The grid sheet can avoid blockage and reverse cleaning can be performed through the use of air cannons.

[0017] (3) The setting of the air cannon and the air blasting vent can clear the blockage at the air inlet by itself, and the sealing gasket can ensure the sealing of the air inlet and enhance the function of the air cannon. The connection structure is convenient and fast to operate, the connection is tight and can prevent falling off. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0019] Figure 2 is a side view of the present invention;

[0020] Figure 3 It is a cross-sectional view of the air outlet of the present invention;

[0021] Figure 4 It is a cross-sectional view of the air suction pipe joint of the present invention.

[0022] Legend: 1. Silo; 2. Air suction port; 3. Air suction pipe; 4. Dust collector; 5. Connecting socket; 6. Connecting structure; 7. Connecting socket; 8. Card assembly; 9. Connecting hole; 10. Card interface; 11. Card block; 12. Spring; 13. Shift block; 14. Mounting hole; 15. Sliding hole; 16. Grid sheet; 17. Sealing gasket; 18. Air blasting port; 19. Connecting pipe; 20. Air cannon. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] Example 1: Please refer to Figures 1-4 , the present invention provides a technical solution of a kiln external cooling system:

[0025] An external-kiln cooling system includes a plurality of bins 1. At least two air inlets 2 are formed in the side wall of the bin 1. An air suction pipe 3 is connected to the air inlet 2, and the other end of the air suction pipe 3 communicates with a dust collector 4. A connection socket 5 is arranged outside the bin 1, and the connection socket 5 corresponds to the air inlet 2 one by one. The air suction pipe 3 and the bin 1 are connected through a connection structure 6, and the connection structure 6 is detachably connected to the connection socket 5. In this embodiment, two air inlets 2 are provided. The position of one air inlet 2 is at the 30% material level of the bin 1, and the other air inlet 2 is at the 60% material level of the bin 1. This ensures that there is material for cooling and at the same time avoids being short-circuited by an empty bin 1, resulting in sucking wild air;

[0026] The connection structure 6 includes a connection seat 7 and a clamping component 8. A sealing gasket 17 is arranged between the connection seat 7 and the bin 1. A connection hole 9 is formed in the connection seat 7, and the connection hole 9 corresponds to the air inlet 2. The connection hole 9 is connected to the air suction pipe 3. A clamping interface 10 is formed in the connection socket 5, and the clamping component 8 corresponds to the clamping interface 10. The clamping component 8 includes a clamping block 11, a spring 12, and a dial block 13. An installation hole 14 is formed in the connection seat 7, and the installation hole 14 corresponds to the clamping interface 10. A wedge surface from top to bottom is formed at one end of the installation hole 14 corresponding to the clamping interface 10. The clamping block 11 is slidably arranged in the installation hole 14. A sliding hole 15 is also formed in the connection seat 7, and the sliding hole 15 communicates with the installation hole 14. The dial block 13 is slidably arranged in the sliding hole 15. One end of the dial block 13 is fixedly connected to the clamping block 11. The spring 12 is arranged in the installation hole 14, and the spring 12 is located between the clamping block 11 and the bottom of the installation hole 14.

[0027] An air explosion port 18 communicating with the connection hole 9 is also formed in the connection seat 7. The air explosion port 18 is inclined and forms an angle with the air inlet 2. A connecting pipe 19 is arranged on the air explosion port 18, and an air cannon 20 is arranged at one end of the connecting pipe 19.

[0028] A thermocouple or an infrared thermometer is arranged at the 50% material level of the bin 1 to facilitate tracking and feedback of the cooling effect. In this embodiment, three bins 1 are provided, and two air inlets 2 are arranged on each bin 1. The air suction pipes 3 converge to a main pipe and communicate with the dust collector 4. Valves are arranged on all the branch air suction pipes 3. The opening and closing actions of the valves can be associated with the temperature. When the temperature is higher than 100 °C, the valves open for cooling. When the temperature is lower than 100 °C, the valves close and there is no cooling.

[0029] Working principle: When quicklime enters the silo 1 and is detected by the infrared thermometer, when the temperature is higher than 100 °C, the valve opens for cooling. When the temperature is lower than 100 °C, the valve closes and stops cooling. And the air cannon 20 starts to blow air reversely at the grid piece 16 and the air suction port 2 to clean them. After completing the work of one stage, it can be quickly disassembled through the connecting structure 6, which is convenient for maintaining the connecting seat 7 and the clamping component 8.

[0030] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Those skilled in the art in the technical field of the present invention should cover within the protection scope of the present invention any equivalent replacement or change made according to the technical solution and inventive concept of the present invention within the disclosed technical scope of the present invention.

Claims

1. An external-kiln cooling system, characterized in that , the cooling system includes a plurality of bins (1), at least two air inlets (2) are provided on the side wall of the bin (1), an air suction pipe (3) is connected to the air inlet (2), the other end of the air suction pipe (3) communicates with a dust collector (4), a connection socket (5) is arranged outside the bin (1), the connection socket (5) corresponds to the air inlet (2) one by one, wherein the air suction pipe (3) is connected to the bin (1) through a connection structure (6), and the connection structure (6) is detachably connected to the connection socket (5).

2. The external-kiln cooling system according to claim 1, characterized in that: There are two air inlets (2), the position of one air inlet (2) is at the 30% material level of the bin (1), and the other air inlet (2) is at the 60% material level of the bin (1).

3. The external-kiln cooling system according to claim 2, characterized in that: The connection structure (6) includes a connection seat (7) and a clamping component (8), a connection hole (9) is provided on the connection seat (7), the connection hole (9) corresponds to the air inlet (2), the connection hole (9) is connected to the air suction pipe (3), wherein a clamping interface (10) is provided on the connection socket (5), the clamping component (8) corresponds to the clamping interface (10), the clamping component (8) includes a clamping block (11), a spring (12) and a dial block (13), an installation hole (14) is provided on the connection seat (7), the installation hole (14) corresponds to the clamping interface (10), the clamping block (11) is slidably arranged in the installation hole (14), a sliding hole (15) is also provided on the connection seat (7), the sliding hole (15) communicates with the installation hole (14), the dial block (13) is slidably arranged in the sliding hole (15), one end of the dial block (13) is fixedly connected to the clamping block (11), and the spring (12) is arranged in the installation hole (14), and the spring (12) is located between the clamping block (11) and the bottom of the installation hole (14).

4. The external-kiln cooling system according to claim 3, characterized in that: A wedge surface from top to bottom is provided at one end of the installation hole (14) corresponding to the clamping interface (10).

5. The external-kiln cooling system according to claim 3, characterized in that: A mesh sheet (16) is arranged between the connection hole (9) and the air inlet (2).

6. The external-kiln cooling system according to claim 3, characterized in that: A sealing gasket (17) is arranged between the connection seat (7) and the bin (1).

7. The external-kiln cooling system according to claim 3, characterized in that: An air explosion port (18) communicating with the connection hole (9) is also provided on the connection seat (7), the air explosion port (18) is inclined and forms an included angle with the air inlet (2), a connection pipe (19) is arranged on the air explosion port (18), and an air cannon (20) is arranged at one end of the connection pipe (19).

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