Coal crusher with dust suppression mechanism

Abstract

The utility model relates to the field of thermal power generation, and in particular to a coal crusher with a dust suppression mechanism, comprising a shell, a feed port is arranged at the upper end of the shell, a roller crushing mechanism is arranged in the shell below the feed port, a material guide cover is arranged below the roller crushing mechanism, a plurality of atomizing nozzles are arranged on the side wall of the material guide cover, a discharge pipe is arranged at the lower end of the shell, a water supply mechanism is arranged outside the shell, and the water supply mechanism is provided with a water supply network connected to each atomizing nozzle. The utility model wets the crushed coal blocks and coal powder by spraying the atomizing nozzle, reduces the dispersion of coal dust, keeps the environment in the workshop clean and tidy, and solves safety hazards.

Description

Technical Field

[0001] The utility model relates to the field of thermal power generation, in particular to a coal crusher with a dust suppression mechanism. Background Art

[0002] A coal crusher is a machine used to crush coal blocks. It is often used to process coal blocks before entering the boiler. It breaks larger coal blocks into small ones, which helps to quickly burn them in the boiler. Coal-fired boilers are also widely used in many fields. In the field of thermal power generation, coal-fired boilers are also needed to generate high-temperature and high-pressure steam to drive the gas turbine to rotate, and then drive the generator to rotate to generate electricity. When using a coal crusher for crushing, coal dust is easily generated, causing environmental pollution in the workshop. Coal dust is relatively flammable and can easily cause safety accidents when it is scattered in the workshop. Therefore, it is particularly necessary to develop a coal crusher with a dust suppression mechanism to keep the environment in the workshop clean and tidy and solve safety hazards. Summary of the invention

[0003] The utility model aims to provide a coal crusher with a dust suppression mechanism, which can keep the environment in the workshop clean and tidy and solve potential safety hazards.

[0004] The technical solutions adopted are as follows:

[0005] A coal crusher with a dust suppression mechanism comprises an outer shell, a feed port is arranged at the upper end of the outer shell, a double-roll crushing mechanism is arranged in the outer shell below the feed port, a material guide hood is arranged below the double-roll crushing mechanism, a plurality of atomizing nozzles are arranged on the side wall of the material guide hood, a discharge pipe is arranged at the lower end of the outer shell, a water supply mechanism is arranged outside the outer shell, and the water supply mechanism is provided with a water supply network connected to each atomizing nozzle.

[0006] Preferably, a dust suppression feed pipe is vertically installed at the upper end of the feed port, an upper gate valve and a lower gate valve are installed on the dust suppression feed pipe from top to bottom, and a feed funnel is arranged at the upper end of the dust suppression feed pipe.

[0007] Preferably, the dust suppression feed pipe comprises a lower section and an upper section, the upper section is slidably inserted in the lower section, the upper plug valve and the lower plug valve are respectively arranged on the upper section and the lower section, a compression spring is fixedly arranged on the lower section, and the upper section is connected to the compression spring.

[0008] Preferably, the water supply network comprises a water supply ring sleeved on the outside of the outer shell, the water supply ring is provided with a water supply pipe connected to the water supply mechanism, the water supply ring is connected to a plurality of branch pipes, and the branch pipes are connected to the atomizing nozzles one by one.

[0009] Preferably, a conical material guiding block is arranged inside the material guiding cover, and the conical material guiding block is arranged above the atomizing nozzle.

[0010] Compared with the prior art, the beneficial effects are:

[0011] 1. The utility model utilizes a water supply mechanism and a water supply network to transport water to each atomizing nozzle, and utilizes the spray of the atomizing nozzle to wet the crushed coal blocks and coal powder, thereby reducing the dispersion of coal dust, thereby keeping the environment in the workshop clean and tidy, and solving safety hazards.

[0012] 2. In the utility model, the upper plug valve and the lower plug valve are opened alternately to avoid direct contact between the interior of the housing and the top of the dust suppression feed pipe, and to avoid smoke and dust generated during the crushing process from drifting to the outside of the housing through the dust suppression feed pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the structure of a coal crusher with a dust suppression mechanism in the utility model.

[0014] Figure 2 yes Figure 1 The structural diagram at A in the middle,

[0015] In the figure: 1. outer shell, 2. dust suppression feed pipe, 201. lower section, 202. upper section, 3. upper plug valve, 4. lower plug valve, 5. feed funnel, 6. compression spring, 7. roller crushing mechanism, 8. material guide cover, 9. atomizing nozzle, 10. discharge pipe, 11. water supply mechanism, 12. water supply ring, 13. water supply pipe, 14. branch pipe, 15. conical guide block. DETAILED DESCRIPTION

[0016] The present invention will be further described below in conjunction with specific embodiments. Figure 1 to Figure 2 As shown:

[0017] Embodiment 1: A coal crusher with a dust suppression mechanism comprises a housing 1, a feed port is arranged at the upper end of the housing 1, a roller crushing mechanism 7 is arranged in the housing 1 below the feed port, the roller crushing mechanism 7 is a prior art and will not be described again; a driving assembly connected to the roller crushing mechanism 7 is arranged outside the housing 1, a material guide cover 8 is arranged below the roller crushing mechanism 7, and the crushed small coal blocks pass through the inside of the material guide cover 8, and the inside of the material guide cover 8 is in a truncated cone shape with a small diameter at the upper end and a large diameter at the lower end.

[0018] A plurality of atomizing nozzles 9 are arranged on the side wall of the guide cover 8, a discharge pipe 10 is arranged at the lower end of the shell 1, a water supply mechanism 11 is arranged outside the shell 1, and the water supply mechanism 11 is provided with a water supply network connected to each atomizing nozzle 9. The water supply mechanism 11 and the water supply network transport water to each atomizing nozzle 9, and use the spray of the atomizing nozzle 9 to wet the crushed coal blocks and coal powder, thereby reducing the dispersion of coal dust;

[0019] Embodiment 2: A coal crusher with a dust suppression mechanism comprises a shell 1, a feed port is arranged at the upper end of the shell 1, a dust suppression feed pipe 2 is vertically installed at the upper end of the feed port, an upper gate valve 3 and a lower gate valve 4 are installed from top to bottom on the dust suppression feed pipe 2, a feed hopper 5 is arranged at the upper end of the dust suppression feed pipe 2, and the upper gate valve 3 and the lower gate valve 4 are opened alternately to avoid direct contact between the interior of the shell 1 and the upper part of the dust suppression feed pipe 2, and to avoid smoke generated during the crushing process from drifting from the dust suppression feed pipe 2 to the outside of the shell 1,

[0020] The dust suppression feeding pipe 2 includes a lower section 201 and an upper section 202. The upper section 202 is slidably inserted in the lower section 201. The upper section 202 and the lower section 201 are slidably sealed and connected. The upper plug valve 3 and the lower plug valve 4 are respectively arranged on the upper section 202 and the lower section 201. A compression spring 6 is fixedly arranged on the lower section 201. The upper section 202 is connected to the compression spring 6. The compression spring 6 plays a role of buffering coal blocks to prevent the coal blocks from hitting the upper plug valve 3 and causing damage to the upper plug valve 3.

[0021] A roller crushing mechanism 7 is arranged in the housing 1 below the feed port. The roller crushing mechanism 7 is a prior art and will not be described again. A driving assembly connected to the roller crushing mechanism 7 is arranged outside the housing 1. A material guide cover 8 is arranged below the roller crushing mechanism 7. The crushed small coal blocks pass through the inside of the material guide cover 8. The inside of the material guide cover 8 is in a truncated cone shape with a small diameter at the upper end and a diameter of 100 mm at the lower end.

[0022] A plurality of atomizing nozzles 9 are arranged on the side wall of the material guide hood 8, a discharge pipe 10 is arranged at the lower end of the shell 1, a water supply mechanism 11 is arranged outside the shell 1, the water supply mechanism 11 is provided with a water supply network connected to each atomizing nozzle 9, the water supply network includes a water supply ring 12 sleeved on the outside of the shell 1, the water supply ring 12 is provided with a water supply pipe 13 connected to the water supply mechanism 11, the water supply ring 12 is connected to a plurality of branch pipes 14, the branch pipes 14 are connected to the atomizing nozzles 9 one by one, a conical material guide block 15 is arranged inside the material guide hood 8, the conical material guide block 15 is arranged above the atomizing nozzle 9, the conical material guide block 15 disperses the crushed coal blocks, making it easier for them to contact with the water mist sprayed by the atomizing nozzle 9.

[0023] The specific working process is as follows: before crushing, start the water supply mechanism 11, the water supply mechanism 11 and the water supply network transport water to each atomizing nozzle 9, the atomizing nozzle 9 sprays water mist, and starts the driving mechanism to drive the roller crushing mechanism 7 to operate, and put the coal block into the upper section 202, and then open the upper gate valve 3, the coal block falls onto the lower gate valve 4, after closing the upper gate valve 3, open the lower gate valve 4, and feed through the above steps to avoid direct contact between the interior of the shell 1 and the top of the dust suppression feed pipe 2, and to avoid the smoke generated during the crushing process from the dust suppression feed pipe 2 to the outside of the shell 1. After the coal block is crushed by the roller crushing mechanism 7, the crushed coal block and coal powder are wetted by the spray of the atomizing nozzle 9 to reduce the dispersion of coal dust.

[0024] The above-mentioned implementation modes are only preferred implementation modes of the present invention, and cannot be used to limit the protection scope of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A coal crusher with a dust suppression mechanism, characterized in that: It includes an outer shell, a feed port is arranged at the upper end of the outer shell, a double-roll crushing mechanism is arranged in the outer shell below the feed port, a material guide cover is arranged below the double-roll crushing mechanism, a plurality of atomizing nozzles are arranged on the side wall of the material guide cover, a discharge pipe is arranged at the lower end of the outer shell, a water supply mechanism is arranged outside the outer shell, and the water supply mechanism is provided with a water supply network connected to each atomizing nozzle.

2. A coal crusher with a dust suppression mechanism as claimed in claim 1, characterized in that: A dust suppression feed pipe is vertically installed at the upper end of the feed port, an upper plug valve and a lower plug valve are installed on the dust suppression feed pipe from top to bottom, and a feed funnel is arranged at the upper end of the dust suppression feed pipe.

3. A coal crusher with a dust suppression mechanism as claimed in claim 2, characterized in that: The dust suppression feeding pipe comprises a lower section and an upper section, the upper section is slidably inserted in the lower section, the upper plug valve and the lower plug valve are respectively arranged on the upper section and the lower section, a compression spring is fixedly arranged on the lower section, and the upper section is connected to the compression spring.

4. A coal crusher with a dust suppression mechanism as claimed in claim 1, characterized in that: The water supply network comprises a water supply ring sleeved on the outside of the shell, the water supply ring is provided with a water supply pipe connected to the water supply mechanism, the water supply ring is connected to a plurality of branch pipes, and the branch pipes are connected to the atomizing nozzles one by one.

5. A coal crusher with a dust suppression mechanism as claimed in claim 1, characterized in that: A conical material guiding block is arranged inside the material guiding cover, and the conical material guiding block is arranged above the atomizing nozzle.

Images