Intelligent electric ore pulp flow regulating valve

Abstract

The utility model relates to the technical field of pipeline valves, in particular to an intelligent electric ore pulp flow regulating valve which comprises a valve body and a valve plate, the valve body is composed of a transverse flow channel and a vertical valve plate installation channel, and the valve plate installation channel is arranged in the middle of the flow channel. The valve plate is driven by the electric device to ascend and descend in the valve plate installation channel to achieve flow adjustment in the flow channel, the electric device is fixed to the upper portion of the valve body, lining high-elasticity rubber is arranged in the flow channel of the valve body and the valve plate installation channel, and outer lining high-density rubber is arranged outside the valve plate. The intelligent electric ore pulp flow regulating valve is not limited by the flow direction of a medium, two-way medium circulation can be achieved, the electric device can control the valve plate in the valve to suspend, channel medium flow limitation is achieved, and the sealing effect can be achieved in the completely closed state.

Description

TECHNICAL FIELD

[0001] The utility model relates to pipeline valve technical field, concretely relates to a kind of intelligent electric ore pulp flow regulating valve. BACKGROUND

[0002] In the field of mining and related industries, the flow control in the pipeline is the key link to meet the requirements of on-site process parameters. The traditional flow regulating valve mainly functions to limit the medium flow by controlling the position of the valve plate, thereby achieving precise regulation. However, the flow control in the pipeline under mine working conditions faces many special challenges. The medium such as ore pulp and slag pulp contains a large amount of stone and mineral powder impurities. These impurities not only cause serious wear to the flow regulating valve, but also may affect the sealing performance and flow regulation accuracy of the valve.

[0003] Due to the limitations of structure and material, the ordinary flow regulating valve cannot effectively cope with the complex environment under ore pulp working conditions. In the ore pulp medium, the valve plate is easily eroded by mixed particle impurities, leading to increased wear and affecting the service life and sealing performance of the valve. In addition, during the opening and closing process of the valve, the ordinary flow regulating valve cannot guarantee the overall sealing performance, and is prone to medium leakage problems.

[0004] In order to meet the requirements of ore pulp working conditions and ensure good sealing performance and flow regulation during the opening and closing process of the valve, a new type of flow regulating valve is needed. SUMMARY

[0005] To solve the above problems, the utility model provides a kind of intelligent electric ore pulp flow regulating valve, the intelligent electric ore pulp flow regulating valve is not limited by medium flow direction, can realize two-way medium flow, electric device can control the valve plate in valve and realize the channel medium flow restriction, complete closing state can also realize sealing effect. The utility model is suitable for use in the occasion of controlling flow regulation of ore pulp, slag pulp, sewage and other needs in the pipeline of fine particle material conveying in the industry of mine, metallurgy, power plant, coal, chemical industry with nominal diameter below 1200mm.

[0006] The technical scheme of the utility model is as follows:

[0007] An intelligent electric ore pulp flow regulating valve, comprising a valve body and a valve plate, the valve body is composed of a horizontal flow channel and a vertical valve plate mounting channel, the valve plate mounting channel is arranged in the middle of the flow channel, the valve plate is driven to rise and fall in the valve plate mounting channel by an electric device to regulate the flow in the flow channel, the electric device is fixed above the valve body, a high-elasticity rubber lining is arranged in the flow channel and the valve plate mounting channel of the valve body, and a high-density rubber lining is arranged outside the valve plate.

[0008] The top of the valve plate is connected with the electric device through a valve stem.

[0009] The top of the valve plate mounting channel is sealingly and fixedly connected with a valve cover, and the valve rod sealingly penetrates through the valve cover.

[0010] A graphite packing is arranged between the valve rod and the valve cover.

[0011] The graphite packing is compressed between the valve rod and the valve cover by a gland.

[0012] A bracket is fixedly mounted on the top of the valve cover, and the electric device is fixedly mounted on the bracket.

[0013] The electric device is an electric push rod.

[0014] The intelligent electric mineral pulp flow regulating valve has the advantages that:

[0015] 1. The intelligent electric mineral pulp flow regulating valve has the advantages that the wear resistance and the erosion resistance are significantly improved, the double protection is formed by the high-elasticity rubber lining in the flow channel and the high-density rubber lining outside the valve plate, the erosion and wear of hard particles such as stones and mineral powder in the mineral pulp and the residue pulp are effectively resisted, the service life of the valve is prolonged, the structural strength is enhanced by the built-in framework of the valve plate, the impact force is further absorbed by the high-density rubber lining outside the valve plate, the deformation or rupture of the valve plate is avoided, and the flow regulating accuracy is ensured.

[0016] 2. The intelligent electric mineral pulp flow regulating valve has the advantages that the sealing performance is comprehensively optimized, the rubber lining outside the valve plate and the rubber lining in the flow channel are extruded and deformed to form a high-elasticity sealing pair when the valve is completely closed, the medium leakage is prevented, the sealing requirements of severe working conditions such as mines and metallurgy are met, the graphite packing in the valve cover is compressed by the gland and forms a dynamic seal with the valve rod, the upward leakage of the medium along the valve rod is prevented, and meanwhile, the cavity of the valve cover can temporarily store a small amount of exuded medium to reduce the risk of external leakage.

[0017] 3. The intelligent electric mineral pulp flow regulating valve has the advantages that the flow regulating accuracy and stability are enhanced, the electric device accurately controls the lifting of the valve plate through the valve rod, the adjustable range of the stroke is wide, the response speed is fast, the flow sudden change demand under complex working conditions is met, the graphite packing and the gland are arranged between the valve rod and the valve cover, the frictional resistance is reduced, the movement of the valve plate is stable, and the flow fluctuation caused by jamming or deviation is avoided.

[0018] 4. The intelligent electric mineral pulp flow regulating valve has the advantages that the remote control and the intelligent integration are combined, the electric device is fixed on the top of the valve cover through the bracket, the rigid connection with the valve plate is realized, the remote operation and the set position control are supported, the demand of the automatic production line is met, the flow sensor can be combined to realize the real-time feedback of the medium flow, the electric device automatically adjusts the opening of the valve plate, the flow is ensured to be stable at the set value, and the production efficiency is improved.

[0019] 5. The utility model discloses an intelligent electric mineral pulp flow regulating valve, the intelligent electric mineral pulp flow regulating valve is suitable for working condition range extension, and the design satisfies the pipeline demand of nominal diameter DN50-DN1200mm, is suitable for the medium flow regulation of mineral pulp, sewage and the like of mine, metallurgy, power plant, coal, chemical industry and the like industry, and the market application prospect is wide; the combination design of high elasticity rubber and high density rubber resists high temperature, high pressure and corrosive medium, prolongs the service life of the valve under extreme working condition. BRIEF DESCRIPTION OF DRAWINGS

[0020] The scheme and advantages of the present application will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments in conjunction with the accompanying drawings. The drawings are for purposes of illustration only and are not to be construed as limiting the utility novel.

[0021] In the drawings:

[0022] Figure 1 It is a cross-sectional structure schematic view of an intelligent electric mineral pulp flow regulating valve of the utility model embodiment;

[0023] Figure 2 It is a cross-sectional structure schematic view of an intelligent electric mineral pulp flow regulating valve of the utility model embodiment;

[0024] The components represented by the reference numerals in the drawings are:

[0025] The utility model discloses: 1, valve body, 2, valve plate, 3, valve stem, 4, valve cover, 5, graphite packing, 6, gland, 7, support, 8, electric device, 9, lining high elasticity rubber, 10, outer lining high density rubber. DETAILED DESCRIPTION

[0026] As Figure 1 Shown, intelligent electric mineral pulp flow regulating valve includes valve body 1 and valve plate 2, and valve body 1 channel lining high elasticity wear-resistant rubber 9, and the lining rubber thickness is greater than the front and rear passage place in the center lower part, enhances partial wear resistance;As Figure 2 Shown, the valve plate 2 built-in thickening skeleton, and outer lining high density rubber 10, and the skeleton design thickness is greater than conventional valve plate, and the impact washing capacity is promoted;When the valve plate 2 is closed, the high elasticity wear-resistant rubber in the cavity center lower part of valve body 1 is pressed down to make it deform, and the high density rubber on the outside of valve plate 2 forms a sealing pair, which meets the sealing requirement of full-closed state.

[0027] Valve body 1 upper connection valve cover 4, and the valve cover is hollow design, and stores the medium seepage at valve plate gap, simultaneously provides valve plate movement stroke space;Valve cover 4 built-in graphite packing 5, is pressed tightly through gland 6, prevents medium leakage.

[0028] The bracket 7 is installed above the valve cover 4, and the electric device 8 is connected to the valve rod 3. The electric device drives the valve rod 3 to move up and down through the electric output torque, thereby controlling the position of the valve plate 2.

[0029] The electric device 10 can remotely drive the valve, set the opening and closing positions and states, has high safety and flexibility, and is suitable for a mine pulp flow remote control environment.

[0030] The intelligent electric mine pulp flow regulating valve solves the problems of wear resistance, sealing performance and operation convenience of existing valves in a complex medium environment, is suitable for the flow regulation of media such as mine pulp, slag pulp and sewage in a pipeline for conveying fine particle materials in industries such as mines, metallurgy, power plants, coal and chemical industry with a nominal diameter of 1200 mm or less. Embodiment

[0031] The valve body 1 is composed of a horizontal flow channel and a vertical valve plate installation channel. The valve plate installation channel is arranged in the middle of the flow channel. The flow channel and the valve plate installation channel are lined with high-elastic wear-resistant rubber 9. The thickness of the high-elastic wear-resistant rubber 9 is 15 mm at the lower center and 10 mm at the front and rear channels, thereby enhancing the local wear resistance.

[0032] The valve plate 2 is internally provided with a thickened skeleton with a thickness of 20 mm, which is externally lined with high-density rubber 10 with a thickness of 8 mm. The skeleton is made of high-strength alloy steel, and the surface is hardened to improve the anti-washing capacity.

[0033] When the valve plate 2 is closed, the high-elastic wear-resistant rubber at the lower center of the inner cavity of the valve body 1 is pressed down to deform to a thickness of 5 mm, thereby forming a sealing pair with the high-density rubber on the outer side of the valve plate 2, and the contact pressure is 0.5 MPa, thereby ensuring the sealing in the fully closed state.

[0034] The valve cover 4 is designed as a hollow cavity to store the seepage medium at the gap of the valve plate. The valve cover is internally provided with graphite packing 5, which is compressed by the gland 6 to prevent the leakage of the medium.

[0035] The electric device 8 adopts an electric push rod with a rated thrust of 5000 N, a stroke of 200 mm and an accuracy of ±0.1 mm. The electric device includes the following components: the motor adopts a servo motor with a power of 1.5 kW and a rotating speed of 1500 rpm; the speed reducer adopts a planetary gear speed reducer with a speed reduction ratio of 10:1 to improve the output torque; the screw nut mechanism has a screw lead of 5 mm, and the nut is rigidly connected to the valve rod 3 to realize accurate transmission; the encoder adopts an absolute value encoder with a resolution of 10000 pulses / revolution to realize real-time feedback of the valve plate position; and the controller adopts a PLC controller supporting remote communication protocols such as Modbus TCP to receive instructions from an upper computer and control the position of the valve plate.

[0036] The valve rod 3 has a diameter of 20 mm, and the surface is plated with hard chromium, with a hardness of HRC 60, so as to improve wear resistance.

[0037] The electric device 10 is an intelligent electric actuator, supports a remote communication protocol such as OPC UA, can receive an upper computer instruction, controls the valve plate position, and has the following functions: position setting, the valve plate opening and closing position can be set, the precision is ±0.5 mm; state monitoring, real-time feedback of valve plate position, motor temperature, current and other parameters; safety protection, overload protection, power-off protection, emergency stop and other functions.

[0038] In the mine fine particle material conveying pipeline, the ore pulp flow regulating valve can control the ore pulp flow, prevent the pipeline from being blocked, and improve the production efficiency.

[0039] In the metallurgical slag slurry conveying pipeline, the valve can adjust the slag slurry flow, ensure the stable operation of the equipment, and prolong the service life of the equipment.

[0040] In the power plant ash conveying pipeline, the valve can control the ash flow, reduce environmental pollution, and improve the environmental performance.

[0041] The valve body 1 is lined with high-elastic wear-resistant rubber, and the valve plate 2 is lined with high-density rubber, which significantly improves the wear resistance of the valve and prolongs the service life; when the valve plate 2 is closed, a sealing pair is formed with the rubber lining in the valve body 1, so as to ensure the sealing of the full-closed state and prevent medium leakage; the electric device 8 adopts an electric push rod, which can feedback the valve plate position in real time through an encoder, so as to realize precise flow regulation; the electric device 10 supports a remote communication protocol, can receive an upper computer instruction, realizes remote control of the valve, and improves the operation convenience.

[0042] The novel intelligent electric ore pulp flow regulating valve has the functions of double-layer rubber lining design of the valve body and the valve plate, electric push rod driving and remote control, and significantly improves the wear resistance, sealing performance and operation convenience of the valve, and is suitable for the flow regulation of ore pulp, slag slurry and sewage in the fields of mine, metallurgy, power plant, coal and chemical industry.

Claims

1. A smart electric pulp flow regulating valve, comprising a valve body (1) and a valve plate (2), the valve body (1) is provided with a horizontal flow channel and a vertical valve plate installation channel, the valve plate installation channel is arranged in the middle of the flow channel, the valve plate (2) is driven to lift in the valve plate installation channel by an electric device (8) to realize flow regulation in the flow channel, the electric device (8) is fixed above the valve body (1), characterized in that, The inner lining of high elasticity rubber (9) is arranged in the flow channel of the valve body (1) and the valve plate installation channel, and the outer lining of high density rubber (10) is arranged outside the valve plate (2).

2. The intelligent electric pulp flow regulating valve according to claim 1, wherein, The top of the valve plate (2) is connected with the electric device (8) through the valve rod (3).

3. The intelligent electric pulp flow regulating valve according to claim 2, wherein, The valve cover (4) is sealingly and fixedly connected to the top of the valve plate installation channel, and the valve rod (3) sealingly penetrates through the valve cover (4).

4. The intelligent electric pulp flow regulating valve according to claim 3, wherein, The graphite packing (5) is arranged between the valve rod (3) and the valve cover (4).

5. The intelligent electric pulp flow regulating valve according to claim 4, wherein, The graphite packing (5) is compressed between the valve rod (3) and the valve cover (4) through the gland (6).

6. The intelligent electric pulp flow regulating valve according to claim 3, wherein, The bracket (7) is fixedly installed on the top of the valve cover (4), and the electric device (8) is fixedly installed on the bracket (7).

7. The intelligent electric pulp flow regulating valve according to claim 1, wherein, The electric device (8) is an electric push rod.

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