阅读说明：本技术 一种用于振动筛机的筛网在线自动清洁装置 (Online automatic cleaning device for screen of vibrating screen machine ) 是由 洪镇波 易红春 梅求文 胡水洋 熊剑 雷刚 程慧敏 于 2019-11-29 设计创作，主要内容包括：本发明涉及湿法选矿筛机技术领域,具体是一种用于振动筛机的筛网在线自动清洁装置,其特征是：包括安装于振动筛机的固定机架上且位于筛网下方的接料盘,接料盘顶部周边装有与筛网框架连接的软连接,接料盘上设有物料出口,接料盘内两侧设有两根导轨,两根导轨上装有沿导轨平移的喷管支架,喷管支架上装有喷淋装置,所述接料盘一侧设有进水口A,所述喷淋装置设有进水口B,进水口A与进水口B之间通过软管连接,接料盘一端装有推力缸,推力缸的输出端与喷管支架连接；本发明提高了筛机的工作效率,延长了筛机的使用寿命。(The invention relates to the technical field of wet-process mineral separation screening machines, in particular to an online automatic cleaning device for a screen of a vibrating screening machine, which is characterized in that: the device comprises a receiving disc which is arranged on a fixed rack of a vibrating screen machine and is positioned below a screen, wherein the periphery of the top of the receiving disc is provided with a flexible connection connected with a screen frame, the receiving disc is provided with a material outlet, two guide rails are arranged on two sides in the receiving disc, a spray pipe support which translates along the guide rails is arranged on the two guide rails, a spraying device is arranged on the spray pipe support, a water inlet A is arranged on one side of the receiving disc, the spraying device is provided with a water inlet B, the water inlet A is connected with the water inlet B through a hose, one end of the receiving disc is provided with a thrust cylinder; the invention improves the working efficiency of the screening machine and prolongs the service life of the screening machine.)

1. The utility model provides an online self-cleaning device of screen cloth for shale shaker, characterized by: including take-up (stock) pan, take-up (stock) pan is installed in the fixed frame of shale shaker and is located the screen cloth below, and the peripheral flexonics of being connected with screen cloth frame that is equipped with of take-up (stock) pan top is equipped with the material export, and both sides are equipped with two guide rails in the take-up (stock) pan, are equipped with the spray tube support along the guide rail translation on two guide rails, are equipped with spray set on the spray tube support, take-up (stock) pan one side is equipped with water inlet A, spray set is equipped with water inlet B, through the hose connection between water inlet A and the water inlet B, and thrust cylinder is equipped.

2. The on-line automatic cleaning device for the screen of the vibrating screen machine as claimed in claim 1, which is characterized in that: the spraying device comprises a main pipe and a plurality of branch pipes perpendicular to the guide rails, the main pipe is communicated with all the branch pipes, the water inlet B is arranged on the main pipe, a plurality of water outlet holes are formed in each branch pipe along the whole length, and a nozzle is arranged at each water outlet hole.

3. The on-line automatic cleaning device for the screen of the vibrating screen machine as claimed in claim 2, which is characterized in that: the spray pipe support is provided with two layers, the two layers have height difference, and each layer is provided with a plurality of branch pipes.

4. The on-line automatic cleaning device for the screen of the vibrating screen machine as claimed in claim 1, which is characterized in that: the nozzle of the spraying device is 180 mm away from the screen and is opposite to the screen surface.

5. The on-line automatic cleaning device for the screen of the vibrating screen machine as claimed in claim 1, which is characterized in that: the thrust cylinder is a cylinder.

6. The on-line automatic cleaning device for the screen of the vibrating screen machine as claimed in claim 1, which is characterized in that: the thrust cylinder is an oil cylinder.

7. The on-line automatic cleaning device for the screen of the vibrating screen machine as claimed in claim 1, which is characterized in that: the take-up pan is equipped with the guide inclined plane, the material export is located the take-up pan minimum.

8. The utility model provides a screen cloth on-line cleaning system for range upon range of sieve machine, includes a plurality of layers of screen cloth, characterized by: the on-line automatic cleaning device for the screen meshes of any one of claims 1 to 7 is arranged below each layer of screen meshes, and further comprises a liquid medicine tank and a PLC (programmable logic controller), wherein the liquid medicine tank is provided with a water pipe connected to each water inlet A, each water pipe is provided with an electromagnetic valve, the PLC is connected with all thrust cylinders and the electromagnetic valves, and the PLC controls the action of each thrust cylinder and the electromagnetic valve to realize the sequential cleaning of each layer of screen meshes.

Technical Field

The invention relates to the technical field of wet-process mineral separation screening machines, in particular to an online automatic cleaning device for a screen of a vibrating screening machine.

Background

Due to the traditional high-frequency vibration screening machine, in the long-time working process of the screen, tiny particles of screened materials and calcified crystals accumulate day by day, screen holes in the screen are easily blocked or clamped to cause the phenomena of screen pasting and the like, and the screen cannot exert normal screening capacity.

If the above problem occurs, the use unit method generally has the following steps:

1. the screen was cleaned periodically. The method comprises the following steps: one screen cleaning must be performed for three or two days. The material is closed to enter the screening machine, the operation of the equipment is stopped, and then the material is washed layer by using a high-pressure water gun. The disadvantages of this approach are: a; the production of a using unit is influenced, and the time is wasted; b; the crystal easily degrades the warps of the screen and finally breaks the yarns to influence the service life of the screen; the screening quality is influenced, the production cost is improved, and the benefit is reduced.

2. The liquid medicine is prepared to soak and wash the screen mesh, and crystals are decomposed to achieve the purpose of cleaning the screen mesh. The method comprises the following steps: closing the material, entering the screening machine, stopping the operation of the equipment, disassembling the screen in a layer by layer, and soaking

The washing achieves the cleaning purpose. The disadvantages of this approach: a; the waste time is more, and the influence on the production is larger.

b; although the service life of the screen is relieved, more manpower, financial resources and material resources are consumed. The production cost is not improved but improved, and the benefit is not increased but reduced.

3. The effectiveness of the screening is not ideal and the screen can be replaced only two or three months. The cost of doing so is multiplied. Because of the screen mesh of thousands yuan, the service life is only 6 months.

Therefore, the traditional equipment is gradually not suitable for the mechanical device of wet-method ore dressing, and cannot keep up with the requirement of the technical field of screening.

Disclosure of Invention

The invention aims to solve the problems that the production efficiency is seriously influenced because the screen needs to be stopped and cleaned regularly in the prior art, and provides an online automatic cleaning device for a screen of a vibrating screen machine.

The specific scheme of the invention is as follows: the utility model provides an online self-cleaning device of screen cloth for shale shaker, is including installing the take-up (stock) pan that just is located the screen cloth below in the fixed frame of shale shaker, and the peripheral flexible coupling of being connected with screen cloth frame that is equipped with in take-up pan top is equipped with the material export, and both sides are equipped with two guide rails in the take-up pan, are equipped with the spray tube support along the guide rail translation on two guide rails, are equipped with spray set on the spray tube support, take-up pan one side is equipped with water inlet A, spray set is equipped with water inlet B, through the hose connection between water inlet A and the water inlet B, and thrust cylinder is equipped with to take-up pan.

The spraying device comprises a main pipe and a plurality of branch pipes vertical to the guide rail, wherein the main pipe is communicated with all the branch pipes, a water inlet B is formed in the main pipe, a plurality of water outlet holes are formed in each branch pipe along the whole length, and each water outlet hole is provided with a nozzle.

The spray pipe support is provided with two layers, the two layers have height difference, and each layer is provided with a plurality of branch pipes.

The spray nozzle of the spray device is 180 mm and 220mm away from the screen and is opposite to the screen surface.

The thrust cylinder is a cylinder or an oil cylinder.

The receiving tray is provided with a material guide inclined plane, and the material outlet is positioned at the lowest part of the receiving tray.

The invention also provides an online cleaning system for the screen cloth of the multi-layer screening machine, which comprises a plurality of layers of screen cloth, an online automatic cleaning device for the screen cloth is arranged below each layer of screen cloth, the online automatic cleaning system also comprises a liquid medicine tank and a PLC (programmable logic controller), the liquid medicine tank is provided with a water pipe connected to each water inlet A, each water pipe is provided with an electromagnetic valve, the PLC is connected with all thrust cylinders and the electromagnetic valves, and the PLC controls the thrust cylinders and the electromagnetic valves to act to realize the sequential cleaning of each layer of screen cloth.

The working principle of the invention is as follows: the take-up (stock) pan is fixed in the frame of shale shaker, the flexible coupling is passed through at its top and screen cloth is connected, the screen cloth during operation, the screen cloth vibrates, the take-up pan is motionless, spray set in the take-up pan from up reverse cleaning screen cloth down, a plurality of root divide a tub interval certain distance to arrange, every nozzle spun washing liquid is fan-shapedly, every branch pipe sprays a bar region of screen cloth, drive spray tube support reciprocating motion back and forth through thrust cylinder during spraying, make the cleaning region dead angle not, the cleaning process screen cloth can normally work and do not shut down, on the ore pulp through the screen cloth drops the take-up pan, finally flow from the material export.

Compared with the prior art, the invention has the following beneficial effects: 1. the screen machine does not need to be stopped, the normal work of the screen machine is not influenced, the production efficiency is improved, and the production cost is reduced; 2. the shapes of the tiny particles in the materials are different, and a part of the materials can block the screen in the screening process. The forward flushing method can not solve the problem of material blocking the screen mesh, the flushing device is arranged below the screen mesh, and the problems that the screen mesh is blocked by the material and the like can be effectively solved through backward flushing; 3. the main body of the invention is arranged on the frame of the screening machine, so that the weight of the vibration unit is reduced, the model selection of the vibration motor is reduced by 10-20KN, the purchase cost of the vibration motor is reduced, and the production cost of the whole machine is reduced; 4. the thrust cylinder drives the spraying device to reciprocate back and forth, so that the screen is cleaned without dead angles, and the working area of the screen is increased.

Drawings

FIG. 1 is a perspective view a of the structure of the present invention;

FIG. 2 is a perspective view b of the structure of the present invention;

FIG. 3 is a top view of the present invention;

FIG. 4 is a view A-A of FIG. 3;

FIG. 5 is a view B-B of FIG. 3;

FIG. 6 is an enlarged view at V of FIG. 5;

FIG. 7 is a schematic diagram of the operation of the second embodiment of the present invention;

in the figure: 1-flexible connection, 2-material receiving disc, 3-fixed support leg, 4-layering, 5-water inlet A, 6-water inlet B, 7-guide rail, 8-spray pipe bracket, 9-branch pipe, 10-main pipe, 11-spray nozzle, 12-thrust cylinder and 13-material outlet.

Detailed Description