Automatic unblocking device for spraying water in vertical mill

Abstract

The utility model discloses an in-mill water-spraying automatic unblocking device of a vertical mill, which comprises a water-spraying pipe, a water-spraying pipe, a water-spraying pipe, a water-spraying pipe, a water-spraying pipe, a water-spraying pipe, a water-spraying pipe and a water-spraying pipe, the other end of the water spraying pipeline is connected with a water spraying pipe; wherein the water spraying pipeline comprises a water spraying pump, a flowmeter and a one-way valve, the input end of the water spraying pump is inserted into the water tank, and the output end is connected with a water inlet pipe; the flowmeter and the one-way valve are sequentially arranged on the water inlet pipe. One end of the compressed air pipeline is connected with external compressed air, and the other end is connected with the water spraying pipe; wherein the compressed air pipeline comprises an electromagnetic valve and a ball valve, and the electromagnetic valve and the ball valve are sequentially arranged on the compressed air pipeline. The wind power unblocking device is additionally arranged in the vertical mill, so that instant stop of water spraying, self-starting of wind power unblocking, prevention of blocking of a water spraying opening, no need of manual intervention, high automation degree and improvement of the running rate of the mill are realized, and the wind power unblocking device has the technical effects of simple structure, convenience in operation, stability in running and low cost.

Description

Technical Field

[0001] The utility model relates to the technical field of grinding equipment, in particular to an automatic water-spraying and clearing device for a vertical mill. Background Art

[0002] Vertical mill is a grinding equipment that integrates crushing, drying, grinding, powder selection and conveying. It is widely used in cement plants and grinding stations to grind raw materials, clinker, slag, etc. It is a highly efficient and energy-saving industrial equipment with good economic benefits and energy-saving effects. A water spray device is set in the vertical mill. Its main purpose is to limit the Brownian motion of dust materials and reduce the heat of dust materials, thereby controlling the materials to form a stable material layer, and finally allowing the materials to be quickly collected, which is convenient for grinding, and the main motor power, grinding pressure, and product quality are stabilized.

[0003] However, the above-mentioned prior art has at least the following technical problems:

[0004] In the prior art, after the vertical mill stops material and lifts the rollers and stops spraying water, dust still exists in the mill, which causes the water outlet to be easily blocked, affecting the spraying effect, and requires manual regular stopping of the mill to clean the water outlet. Summary of the invention

[0005] The embodiment of the utility model provides an automatic water spraying and clearing device in a vertical mill, which is used to solve the technical problem in the prior art that after the vertical mill stops spraying and the roller is lifted, the water outlet is easily blocked due to the presence of dust in the mill, affecting the spraying effect, and the mill needs to be stopped regularly to clean the water outlet. By adding a wind-powered clearing device in the vertical mill, the water spray stops immediately, and the wind-powered clearing starts automatically, preventing the water outlet from being blocked, without the need for human intervention, with a high degree of automation, improving the mill operation rate, and having the technical effects of simple structure, convenient operation, stable operation, and low cost.

[0006] In order to solve the above problems, the embodiment of the utility model provides an automatic water-spraying blockage-clearing device in a vertical mill, characterized in that the blockage-clearing device comprises: a water-spraying pipe, on which a plurality of water outlets are arranged; a water-spraying pipeline, one end of which is connected to a water tank, and the other end of which is connected to the water-spraying pipe; wherein the water-spraying pipeline comprises: a water-spraying pump, the input end of which is inserted into the water tank, the output end of which is fixedly connected to a water inlet pipe, and the end of which is away from the water-spraying pump is connected to the water-spraying pipe. connection; a flow meter, which is arranged on the water inlet pipe and is located between the water pump and the water spray pipe; a one-way valve, which is arranged on the water inlet pipe and is located between the flow meter and the water spray pipe; a compressed air pipeline, one end of which is connected to external compressed air, and the other end of which is connected to the water spray pipe; wherein the compressed air pipeline comprises: a solenoid valve, which is arranged on the compressed air pipeline; a ball valve, which is arranged on the compressed air pipeline and is located between the solenoid valve and the water spray pipe.

[0007] Preferably, the blockage clearing device has a first state and a second state: when the blockage clearing device is in the first state, the water spray pump is started, the flow meter and the one-way valve are opened, and the water spray pipeline is opened; when the blockage clearing device is in the second state, the solenoid valve is started, the ball valve is opened, and the compressed air pipeline is opened.

[0008] Preferably, the solenoid valve and the water spray pump are in reverse working linkage.

[0009] Preferably, the number of the water spray pipes is 2.

[0010] Preferably, the water spray pipe has a diameter of 50 mm and a length of 800 mm.

[0011] Preferably, two rows of water outlets are evenly arranged on the water spray pipe, with 10 outlets in each row.

[0012] Preferably, the diameter of the water outlet is not greater than 5 mm.

[0013] The above one or more technical solutions in the embodiments of the present utility model have at least one or more of the following technical effects:

[0014] The utility model provides an automatic water-spraying blockage-clearing device in a vertical mill, the blockage-clearing device comprising: a water-spraying pipe, a plurality of water outlets being arranged on the water-spraying pipe; a water-spraying pipeline, one end of the water-spraying pipeline being connected to a water tank, the other end of the water-spraying pipeline being connected to the water-spraying pipe; wherein the water-spraying pipeline comprises: a water-spraying pump, the input end of the water-spraying pump being inserted into the water tank, the output end of the water-spraying pump being fixedly connected to a water inlet pipe, the end of the water inlet pipe being away from the water-spraying pump being connected to the water-spraying pipe; a flow meter, the The flow meter is arranged on the water inlet pipe and is located between the water pump and the water spray pipe; the one-way valve is arranged on the water inlet pipe and is located between the flow meter and the water spray pipe; the compressed air pipeline, one end of which is connected to the external compressed air, and the other end of which is connected to the water spray pipe; wherein the compressed air pipeline includes: a solenoid valve, which is arranged on the compressed air pipeline; a ball valve, which is arranged on the compressed air pipeline and is located between the solenoid valve and the water spray pipe. It is used to solve the technical problem that after the vertical mill in the prior art stops the material and lifts the roller and stops spraying water, the water outlet is easily blocked due to the existence of dust in the mill, which affects the spraying effect and requires manual regular stopping of the mill to clean the water spray outlet. By adding a wind-powered clearing device in the vertical mill, the water spray stops immediately and the wind-powered clearing starts automatically, which prevents the water spray outlet from being blocked. No human intervention is required, the degree of automation is high, the operation rate of the mill is improved, and the technical effects of simple structure, convenient operation, stable operation and low cost are achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 The present invention is a schematic structural diagram of a device for automatically clearing blockages by spraying water inside a vertical mill provided in an embodiment of the present invention.

[0017] Figure numerals: water spray pipe 1, water outlet 2, water inlet pipe 3, one-way valve 4, flow meter 5, water spray pump 6, water tank 7, solenoid valve 8, ball valve 9. DETAILED DESCRIPTION

[0018] The embodiment of the utility model provides an automatic water spraying and clearing device for a vertical mill, which solves the technical problem in the prior art that after the vertical mill stops material and lifts the rollers and stops spraying water, the water outlet is easily blocked due to the presence of dust in the mill, affecting the spraying effect, and requiring manual regular stopping of the mill to clean the water outlet.

[0019] The technical solution in the embodiment of the utility model has the following overall structure: a water spray pipe, on which a plurality of water outlets are arranged; a water spray pipeline, one end of which is connected to a water tank, and the other end of which is connected to the water spray pipe; wherein the water spray pipeline comprises: a water spray pump, the input end of which is inserted into the water tank, the output end of which is fixedly connected to a water inlet pipe, and the end of which is away from the water pump is connected to the water spray pipe; a flow meter, which is provided On the water inlet pipe, and located between the water pump and the water spray pipe; a one-way valve, the one-way valve is arranged on the water inlet pipe, and located between the flow meter and the water spray pipe; a compressed air pipeline, one end of the compressed air pipeline is connected to the external compressed air, and the other end of the compressed air pipeline is connected to the water spray pipe; wherein the compressed air pipeline includes: a solenoid valve, the solenoid valve is arranged on the compressed air pipeline; a ball valve, the ball valve is arranged on the compressed air pipeline, and located between the solenoid valve and the water spray pipe. By adding a wind-powered clearing device in the vertical mill, the water spray stops immediately, and the wind-powered clearing starts automatically, which prevents the water spray port from being blocked, and no human intervention is required. The degree of automation is high, the operation rate of the mill is improved, and the technical effects of simple structure, convenient operation, stable operation and low cost are achieved.

[0020] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of 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.

[0021] Embodiment 1

[0022] The utility model provides a vertical mill internal water spray automatic blockage clearing device, please refer to Figure 1 , the blockage clearing device comprises:

[0023] A water spray pipe 1, wherein the water spray pipe 1 is provided with a plurality of water outlets 2;

[0024] A water spray pipeline, one end of which is connected to a water tank 7, and the other end of which is connected to the water spray pipe 1;

[0025] Wherein, the water spray pipeline comprises:

[0026] A water spray pump 6, wherein the input end of the water spray pump 6 is inserted into the water tank 7, and the output end of the water spray pump 6 is fixedly connected to a water inlet pipe 3, and one end of the water inlet pipe 3 away from the water spray pump 6 is connected to the water spray pipe 1;

[0027] A flow meter 5, wherein the flow meter 5 is arranged on the water inlet pipe 3 and is located between the water spray pump 6 and the water spray pipe 1;

[0028] A one-way valve 4, wherein the one-way valve 4 is arranged on the water inlet pipe 3 and is located between the flow meter 5 and the water spray pipe 1;

[0029] Furthermore, the number of the water spray pipes 1 is 2.

[0030] Furthermore, the water spray pipe 1 has a diameter of 50 mm and a length of 800 mm.

[0031] Furthermore, the water outlets 2 are evenly arranged on the water spray pipe 1, with 10 outlets in each row.

[0032] Furthermore, the diameter of the water outlet 2 is not greater than 5 mm.

[0033] Specifically, the embodiment of the present application is provided with two pipelines, one is a water spray pipeline, and the other is a compressed air pipeline, wherein the water spray pipeline is used to spray water in the mill, and the compressed air pipeline is used to clean dirt to prevent the water outlet 2 from being blocked. Specifically, two water spray pipes 1 with a diameter of 50 mm and a length of 800 mm are generally symmetrically provided in the vertical mill body, and two rows of water outlets 2 with a diameter not greater than 5 mm are respectively provided on each of the water spray pipes 1, and each row is provided with 10 water outlets 2, a total of 20. One end of the water spray pipeline is connected to a water tank 7, and the other end of the water spray pipeline is connected to the water spray pipe 1, wherein the water spray pipeline includes a water spray pump 6, a water inlet pipe 3, a flow meter 5, and a one-way valve 4, the input end of the water spray pump 6 is inserted in the water tank 7, and the output end of the water spray pump 6 is fixedly connected to the water inlet pipe 3, and the flow meter 5 and the one-way valve 4 are sequentially installed on the water inlet pipe 3, and finally the water inlet pipe 3 is fixedly connected to the water spray pipe 1. The flow meter 5 is used to measure the water spraying amount, and the one-way valve 4 is mainly provided to prevent the compressed air from reversely entering the flow meter 5 and the water spraying pump 6 .

[0034] The water spray pump 6 draws water from the water tank 7 and pressurizes it, and the water enters the water spray pipe 1 through the flow meter 5, the one-way valve 4, and the water inlet pipe 3, and is sprayed out through the water outlet 2, thereby spraying water inside the mill and achieving the technical effect of lowering the temperature and stabilizing the material layer.

[0035] A compressed air pipeline, one end of which is connected to external compressed air, and the other end of which is connected to the water spray pipe 1;

[0036] Wherein, the compressed air pipeline comprises:

[0037] A solenoid valve 8, wherein the solenoid valve 8 is arranged on the compressed air pipeline;

[0038] The ball valve 9 is arranged on the compressed air pipeline and is located between the solenoid valve 8 and the water spray pipe 1 .

[0039] Furthermore, the blockage clearing device has a first state and a second state:

[0040] When the blockage clearing device is in the first state, the water spray pump 6 is started, the flow meter 5 and the one-way valve 4 are opened, and the water spray pipe 1 is opened;

[0041] When the blockage clearing device is in the second state, the solenoid valve 8 is started, the ball valve 9 is opened, and the compressed air pipeline is opened.

[0042] Furthermore, the electromagnetic valve 8 and the water spray pump 6 are in reverse linkage working state.

[0043] Specifically, the embodiment of the present application adds a compressed air duct outside the water spray pipe 1. When the water spraying stops, the solenoid valve 8 opens to let in compressed air, and the water outlet 2 of the water spray pipe 1 can be blown and cleaned through the ball valve 9 to prevent dirt from clogging the water outlet 2.

[0044] The water spray pump 6 and the electromagnetic valve 8 are in a reverse linkage state. The electromagnetic valve 8 is closed when the water spray pump 6 is started, and the electromagnetic valve 8 is opened when the water spray pump 6 is stopped. When the water spray device is inspected or manually cleaned, the ball valve 9 can be manually closed to cut off the compressed air. That is, the ball valve 9 is in an open state during the normal operation of the mill, and this valve is only manually closed during inspection.

[0045] When the clearing device is in the first state, that is, when the mill is operating normally, the water pump 6 starts and runs normally, the electromagnetic valve 8 works in reverse linkage and is in a closed state, the compressed air is cut off, and no clearing action is performed. The user sets a suitable water spray flow rate according to the mill condition, and the central control room adjusts the frequency converter to control the speed of the water pump 6 according to the feedback of the flow meter 5, so as to achieve the purpose of stable water spraying in the mill; due to the existence of the one-way valve 4, the compressed air will not enter the flow meter 5 and the water pump 6, and will not affect the normal water spraying; during maintenance or when the water spray device needs to be manually cleaned, the ball valve 9 can be manually closed to cut off the compressed air for normal operation.

[0046] When the clearing device is in the second state, that is, when the material is stopped or the roller is lifted or the machine is shut down for some reason, the water pump 6 stops, and the solenoid valve 8 automatically opens in reverse linkage. Compressed air enters the water pipe 1 through the solenoid valve 8 and the ball valve 9, and is sprayed out through the water outlet 2. The water outlet 2 is cleaned by high-pressure wind to prevent the water outlet 2 from being blocked, thereby achieving the technical effect of automatic clearing of blockage by spraying water inside the vertical mill.

[0047] In short, by adding a wind-powered clearing device in the vertical mill, and the water spray pump 6 and the solenoid valve 8 are reversely interlocked and controlled, the water spraying stops immediately, and the wind-powered clearing starts automatically to prevent the water spray outlet from being blocked. No human intervention is required, the degree of automation is high, the operation rate of the mill is improved, and it has the technical effects of simple structure, easy operation, stable operation and low cost.

[0048] The technical solution provided in the embodiment of the utility model has at least the following technical effects or advantages:

[0049] The utility model provides an automatic water-spraying blockage-clearing device in a vertical mill, the blockage-clearing device comprising: a water-spraying pipe, a plurality of water outlets being arranged on the water-spraying pipe; a water-spraying pipeline, one end of the water-spraying pipeline being connected to a water tank, the other end of the water-spraying pipeline being connected to the water-spraying pipe; wherein the water-spraying pipeline comprises: a water-spraying pump, the input end of the water-spraying pump being inserted into the water tank, the output end of the water-spraying pump being fixedly connected to a water inlet pipe, the end of the water inlet pipe being away from the water-spraying pump being connected to the water-spraying pipe; a flow meter, the The flow meter is arranged on the water inlet pipe and is located between the water pump and the water spray pipe; the one-way valve is arranged on the water inlet pipe and is located between the flow meter and the water spray pipe; the compressed air pipeline, one end of which is connected to the external compressed air, and the other end of which is connected to the water spray pipe; wherein the compressed air pipeline includes: a solenoid valve, which is arranged on the compressed air pipeline; a ball valve, which is arranged on the compressed air pipeline and is located between the solenoid valve and the water spray pipe. It is used to solve the technical problem that after the vertical mill in the prior art stops the material and lifts the roller and stops spraying water, the water outlet is easily blocked due to the existence of dust in the mill, which affects the spraying effect and requires manual regular stopping of the mill to clean the water spray outlet. By adding a wind-powered clearing device in the vertical mill, the water spray stops immediately and the wind-powered clearing starts automatically, which prevents the water spray outlet from being blocked. No human intervention is required, the degree of automation is high, the operation rate of the mill is improved, and the technical effects of simple structure, convenient operation, stable operation and low cost are achieved.

[0050] Although the preferred embodiments of the present invention have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the present invention.

[0051] Obviously, those skilled in the art can make various changes and modifications to the embodiments of the present invention without departing from the spirit and scope of the embodiments of the present invention. Thus, if these modifications and variations of the embodiments of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A vertical mill internal water spraying automatic blockage clearing device, characterized in that: The blockage clearing device comprises: A water spray pipe, wherein a plurality of water outlets are arranged on the water spray pipe; A water spray pipeline, one end of which is connected to a water tank, and the other end of which is connected to the water spray pipe; Wherein, the water spray pipeline comprises: A water spray pump, wherein the input end of the water spray pump is inserted into the water tank, the output end of the water spray pump is fixedly connected to a water inlet pipe, and one end of the water inlet pipe away from the water spray pump is connected to the water spray pipe; A flow meter, the flow meter is arranged on the water inlet pipe and located between the water spray pump and the water spray pipe; A one-way valve, the one-way valve is arranged on the water inlet pipe and is located between the flow meter and the water spray pipe; A compressed air pipeline, one end of which is connected to external compressed air, and the other end of which is connected to the water spray pipe; Wherein, the compressed air pipeline comprises: A solenoid valve, the solenoid valve being arranged on the compressed air pipeline; A ball valve is arranged on the compressed air pipeline and is located between the solenoid valve and the water spray pipe.

2. The blockage clearing device according to claim 1, characterized in that: The blockage clearing device has a first state and a second state: When the blockage clearing device is in the first state, the water spray pump is started, the flow meter and the one-way valve are opened, and the water spray pipeline is opened; When the blockage clearing device is in the second state, the solenoid valve is started, the ball valve is opened, and the compressed air pipeline is unblocked.

3. The blockage clearing device according to claim 2, characterized in that: The electromagnetic valve and the water spray pump are in reverse working state.

4. The blockage clearing device according to claim 1, characterized in that: The number of the water spray pipes is 2.

5. The blockage clearing device according to claim 4, characterized in that: The water spray pipe has a diameter of 50 mm and a length of 800 mm.

6. The blockage clearing device according to claim 5, characterized in that: The water spray pipe is evenly provided with two rows of water outlets, with 10 outlets in each row.

7. The blockage clearing device according to claim 6, characterized in that: The diameter of the water outlet is no greater than 5 mm.

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