Low-resistance cement kiln air supply machine

Abstract

The utility model discloses a low-resistance cement kiln air supply fan, which is applied to the technical field of cement kiln air supply, and is characterized in that external air is sucked by the fan and conveyed to a main pipeline to enter a cooling bin by starting the fan, and at the moment, a centrifugal pump is started to pump out cooling water in a water storage tank through a water pumping pipe; cooling water is conveyed into the flow dividing pipe through the water conveying pipe and is finally sprayed to the main pipeline through the spray head, so that heat dissipation is conducted on air in the main pipeline, and the cooling water in the cooling bin flows back into the water storage tank through the through holes and then is pumped out through the centrifugal pump to achieve the purpose of circulating spraying; and the cooled air enters the connecting disc and is uniformly blown out through the air blowing nozzle, so that the air entering the cement kiln can be uniformly distributed, and the cooling efficiency of the cement kiln is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of air supply for cement kilns, and particularly relates to a low-resistance air supply fan for cement kilns. Background Art

[0002] Cement kilns belong to building materials equipment. According to different processed materials, they can be divided into cement rotary kilns, metallurgical and chemical rotary kilns, and lime rotary kilns. The cement rotary kiln is the main equipment for the dry and wet production lines of cement clinker. In the cement production process, the air supply system is a key link to ensure the smooth progress of combustion and material transmission in the kiln.

[0003] Currently, the Chinese utility model with the publication number of CN211823783U discloses a cement kiln, which relates to the technical field of cement kilns. Its beneficial effects are as follows: The air source generated by the fan enters the cooling main pipe. The air source in the cooling main pipe blows towards the cement kiln body through the open ends of the cooling shunt pipes. The open ends of multiple cooling shunt pipes face different positions of the cement kiln body, achieving the purpose of cooling the entire cement kiln body. In the above process, a single fan is used to replace the original nine fans. On the one hand, the cooling cost is reduced. On the other hand, the purpose of noise reduction is achieved, and the failure rate of cooling is also reduced. The failure rate of the nine fans is relatively high.

[0004] However, the above technology adopts a fixed pipeline design, which is not convenient for adjusting the wind speed and flow rate in the pipeline, resulting in uneven gas distribution in the cement kiln, affecting cooling and increasing the energy consumption of the cement kiln. At the same time, air is sent into the furnace through the fan, but it is not convenient to cool the air to a certain extent, and it is difficult to achieve the purpose of cooling the cement kiln. Content of the Utility Model

[0005] The purpose of the utility model is to provide a low-resistance air supply fan for a cement kiln, and its advantage is that it can blow out gas evenly and is convenient for cooling the gas.

[0006] The above technical purpose of the utility model is achieved through the following technical solutions: A low-resistance air supply fan for a cement kiln includes a cement kiln body. A fan is arranged at the top of the cement kiln body. A temperature sensor is arranged at the top of the inner cavity of the cement kiln body. A frequency conversion controller is arranged on one side of the fan. A main pipeline is arranged at the air outlet of the fan. A dust-proof net is arranged at the air inlet of the fan. A connecting component is arranged on one side of the dust-proof net. A cooling box is arranged on the outer side of the main pipeline. A spraying component is arranged on one side of the cooling box.

[0007] Adopt the above technical solution: When the fan is started, the air outside the fan is sucked in by the fan and conveyed to the main pipeline and enters the cooling bin. At this time, the centrifugal pump is started to pump out the cooling water in the water storage tank through the water suction pipe, and the cooling water is conveyed to the shunt pipe through the water delivery pipe, and finally sprayed on the main pipeline from the nozzle, so as to dissipate the heat of the air inside it. The cooling water in the cooling bin flows back to the water storage tank through the through hole, and then is pumped out by the centrifugal pump again to achieve the purpose of circulating spraying. The cooled air enters the connecting disc and is evenly blown out through the air blowing nozzles, so that the gas entering the cement kiln can be evenly distributed, and the efficiency of cooling the cement kiln is improved.

[0008] The present utility model is further arranged as: One end of the main pipeline penetrates through the top of the cement kiln body and is communicated with a connecting disc, and air blowing nozzles are arranged at the bottom of the connecting disc.

[0009] Adopt the above technical solution: It is convenient to blow out the gas evenly.

[0010] The present utility model is further arranged as, the number of the air blowing nozzles is several, and several of the air blowing nozzles are arranged at equal intervals.

[0011] Adopt the above technical solution: It can avoid the damage of a single air blowing nozzle, resulting in the inability to blow out the gas.

[0012] The present utility model is further arranged as, the connecting component includes a mounting block fixed on one side of the dust-proof net, a positioning hole is opened on one side of the mounting block, a mounting groove is opened on the inner wall of the air suction port of the fan, a positioning rod is slidably connected to the inner wall of the mounting groove, the number of the positioning rods is four, and two are in a group.

[0013] Adopt the above technical solution: It is convenient to install the dust-proof net.

[0014] The present utility model is further arranged as, the connecting component further includes a connecting block fixed at one end of the positioning rod, a spring is fixedly connected to one side of the connecting block, and a slider is fixedly connected to one side of the connecting block.

[0015] Adopt the above technical solution: It is convenient for the connecting block to automatically reset.

[0016] The present utility model is further arranged as, a chute for cooperating with the slider is opened on the inner wall of the fan.

[0017] Adopt the above technical solution: It can make the connecting block move stably.

[0018] The present utility model is further arranged as, the cooling box includes a cooling bin arranged outside the main pipeline, a water storage tank is fixedly connected to the bottom of the cooling bin, a through hole is opened at the bottom of the inner cavity of the cooling bin, and a liquid injection pipe is communicated with one side of the water storage tank.

[0019] Adopting the above technical solution: it is convenient to store the cooling water.

[0020] The utility model is further configured such that the spraying assembly includes a centrifugal pump disposed on one side of the cooling bin. A water suction pipe is provided at the water suction end of the centrifugal pump. One end of the water suction pipe is communicated with one side of the water storage tank. A water delivery pipe is provided at the water discharge end of the centrifugal pump. One end of the water delivery pipe penetrates through the top of the cooling bin and is communicated with a shunt pipe. Nozzles are provided on the outer side of the shunt pipe.

[0021] Adopting the above technical solution: it is convenient to cool the air in the main pipeline.

[0022] In summary, the utility model has the following beneficial effects:

[0023] 1: When the fan is started, the outside air is sucked in by the fan and conveyed to the main pipeline, and then sent into the connection plate and evenly blown out through the air blowing nozzles, so that the gas entering the cement kiln can be evenly distributed. The dust-proof net can prevent dust from entering the fan.

[0024] 2: After the air enters the main pipeline and then enters the cooling bin, at this time, the centrifugal pump is started to pump out the cooling water in the water storage tank through the water suction pipe, and the cooling water is conveyed to the shunt pipe through the water delivery pipe, and finally sprayed on the main pipeline from the nozzles, so as to dissipate the heat of the air inside it. The cooling water in the cooling bin flows back to the water storage tank through the through holes, and then is pumped out by the centrifugal pump again to achieve the purpose of circulating spraying. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is the overall structural schematic diagram of the utility model;

[0026] Figure 2 is the structural schematic diagram of the main pipeline and the connection plate of the utility model;

[0027] Figure 3 is the structural schematic diagram of the spraying assembly of the utility model;

[0028] Figure 4 is the structural schematic diagram of the dust-proof net of the utility model;

[0029] Figure 5 is the utility model Figure 4 The enlarged schematic diagram of the structure at A in.

[0030] Reference numerals: 1, cement kiln body; 2, fan; 3, temperature sensor; 4, frequency conversion controller; 5, main pipeline; 51, connecting plate; 6, dust-proof net; 7, cooling box; 71, cooling bin; 72, water storage tank; 8, mounting block; 9, positioning hole; 10, mounting groove; 11, positioning rod; 12, connecting block; 13, spring; 14, slider; 15, centrifugal pump; 16, water suction pipe; 17, water delivery pipe; 18, shunt pipe; 19, nozzle. Detailed implementation mode

[0031] The present utility model will be further described in detail below with reference to the accompanying drawings.

[0032] Embodiment 1:

[0033] Refer to Figure 1 , Figure 2 , Figure 4 and Figure 5 , a low-resistance air supply fan for a cement kiln, comprising a cement kiln body 1, a fan 2 is arranged at the top of the cement kiln body 1, a temperature sensor 3 is arranged at the top of the inner cavity of the cement kiln body 1, a frequency conversion controller 4 is arranged on one side of the fan 2, a main pipeline 5 is arranged at the air outlet of the fan 2, a dust-proof net 6 is arranged at the air suction port of the fan 2, and a connecting component is arranged on one side of the dust-proof net 6.

[0034] Among them: the frequency conversion controller 4 is arranged on the motor of the fan 2, the temperature sensor 3 is electrically connected to the frequency conversion controller 4 through a cable, the temperature inside the cement kiln is detected by the temperature sensor 3, and the signal is transmitted to the frequency conversion controller 4, and the frequency conversion controller 4 controls the operation of the fan 2.

[0035] Refer to Figure 2 , one end of the main pipeline 5 penetrates through the top of the cement kiln body 1 and is communicated with a connecting plate 51, and a blowing nozzle is arranged at the bottom of the connecting plate 51.

[0036] The number of the blowing nozzles is several, and several blowing nozzles are arranged at equal intervals.

[0037] Refer to Figure 4 and Figure 5 , the connecting component includes a mounting block 8 fixed on one side of the dust-proof net 6, a positioning hole 9 is arranged on one side of the mounting block 8, a mounting groove 10 is arranged on the inner wall of the air suction port of the fan 2, a positioning rod 11 is slidably connected to the inner wall of the mounting groove 10, the number of the positioning rods 11 is four, and two are in a group.

[0038] The connecting component further includes a connecting block 12 fixed at one end of the positioning rod 11, a spring 13 is fixedly connected to one side of the connecting block 12, and a slider 14 is fixedly connected to one side of the connecting block 12.

[0039] The inner wall of the fan 2 is provided with a slide groove for use with the slider 14. The slider 14 and the slide groove cooperate with each other to enable the connecting block 12 to move stably.

[0040] Brief description of the use process: Start the fan 2, the outside air is sucked in by the fan 2 and transported to the main pipeline 5, and then sent to the connection plate 51 and blown out evenly through the blowing nozzle, so that the internal gas entering the cement kiln can be evenly distributed. The dust-proof net 6 can prevent dust from entering the fan 2. When the dust-proof net 6 needs to be cleaned, move the connecting block 12 to separate the positioning rod 11 from the positioning hole 9. At this time, the spring 13 is in a compressed state, and then move the dust-proof net 6 to separate the mounting block 8 from the mounting groove 10.

[0041] Embodiment 2:

[0042] refer to Figure 1 , Figure 2 and Figure 3 A low-resistance cement kiln air supply fan comprises a cement kiln body 1, a fan 2 is arranged on the top of the cement kiln body 1, a main pipeline 5 is arranged at the air outlet of the fan 2, a cooling box 7 is arranged on the outside of the main pipeline 5, and a spray assembly is arranged on one side of the cooling box 7.

[0043] refer to Figure 1 , Figure 2 and Figure 3 The cooling box 7 includes a cooling bin 71 arranged outside the main pipeline 5, a water storage tank 72 is fixedly connected to the bottom of the cooling bin 71, a through hole is opened at the bottom of the inner cavity of the cooling bin 71, a liquid injection pipe is connected to one side of the water storage tank 72, and a filter screen is clamped on the inner wall of the liquid injection pipe.

[0044] Reference 1. Figure 2 and Figure 3 The spray assembly includes a centrifugal pump 15 arranged on one side of the cooling bin 71, a water pumping pipe 16 is arranged at the water pumping end of the centrifugal pump 15, one end of the water pumping pipe 16 is connected to one side of the water storage tank 72, a water delivery pipe 17 is arranged at the drainage end of the centrifugal pump 15, one end of the water delivery pipe 17 passes through the top of the cooling bin 71 and is connected to a diversion pipe 18, and a nozzle 19 is arranged on the outside of the diversion pipe 18.

[0045] Brief description of the use process: After the air enters the main pipeline 5, it enters the cooling chamber 71. At this time, the centrifugal pump 15 is started to pump out the cooling water in the water storage tank 72 through the pumping pipe 16, and the cooling water is transported to the diversion pipe 18 through the water delivery pipe 17. Finally, it is sprayed on the main pipeline 5 from the nozzle 19, so as to dissipate the heat of the air inside it. The cooling water in the cooling chamber 71 flows back to the water storage tank 72 through the through hole, and then is pumped out by the centrifugal pump 15 to achieve the purpose of circulating spraying.

[0046] This specific embodiment is only an interpretation of the present utility model, and it is not a limitation to the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment that do not contribute creatively as needed, but as long as it is within the scope of the claims of the present utility model, it is protected by the patent law.

Claims

1. A low-resistance cement kiln blower, comprising a cement kiln body (1), characterized in that: A blower (2) is provided at the top of the cement kiln body (1). A temperature sensor (3) is provided at the top of the inner cavity of the cement kiln body (1). A frequency conversion controller (4) is provided on one side of the blower (2). A main pipe (5) is provided at the air outlet of the blower (2). A dust-proof net (6) is provided at the air suction port of the blower (2). A connecting component is provided on one side of the dust-proof net (6). A cooling box (7) is provided on the outer side of the main pipe (5). A spraying component is provided on one side of the cooling box (7).

2. The low-resistance cement kiln air blower according to claim 1, wherein: One end of the main pipe (5) penetrates through the top of the cement kiln body (1) and is communicated with a connecting plate (51). A blowing nozzle is provided at the bottom of the connecting plate (51).

3. The low-resistance cement kiln air supply fan according to claim 2, wherein: The number of the blowing nozzles is several, and the several blowing nozzles are arranged at equal intervals.

4. A low-resistance cement kiln blower according to claim 1, characterized in that: The connecting component includes a mounting block (8) fixed on one side of the dust-proof net (6). A positioning hole (9) is opened on one side of the mounting block (8). An installation groove (10) is opened on the inner wall of the air suction port of the blower (2). A positioning rod (11) is slidably connected to the inner wall of the installation groove (10). The number of the positioning rods (11) is four, and two of them are in a group.

5. The low-resistance cement kiln air supply fan according to claim 4, characterized in that: The connecting component further includes a connecting block (12) fixed at one end of the positioning rod (11). A spring (13) is fixedly connected to one side of the connecting block (12). A slider (14) is fixedly connected to one side of the connecting block (12).

6. The low-resistance cement kiln blower according to claim 5, wherein: A sliding groove for cooperating with the slider (14) is opened on the inner wall of the blower (2).

7. The low-resistance cement kiln blower according to claim 1, characterized in that: The cooling box (7) includes a cooling bin (71) arranged on the outer side of the main pipe (5). A water storage tank (72) is fixedly connected to the bottom of the cooling bin (71). A through hole is opened at the bottom of the inner cavity of the cooling bin (71). A liquid injection pipe is communicated with one side of the water storage tank (72).

8. A low-resistance cement kiln blower according to claim 7, characterized in that: The spraying component includes a centrifugal pump (15) arranged on one side of the cooling bin (71). A water suction pipe (16) is provided at the water pumping end of the centrifugal pump (15). One end of the water suction pipe (16) is communicated with one side of the water storage tank (72). A water delivery pipe (17) is provided at the water drainage end of the centrifugal pump (15). One end of the water delivery pipe (17) penetrates through the top of the cooling bin (71) and is communicated with a shunt pipe (18). Nozzles (19) are provided on the outer side of the shunt pipe (18).

Images