CN110467001B - Transfer pump for dust-free powder conveying - Google Patents
Transfer pump for dust-free powder conveying Download PDFInfo
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- CN110467001B CN110467001B CN201910611790.XA CN201910611790A CN110467001B CN 110467001 B CN110467001 B CN 110467001B CN 201910611790 A CN201910611790 A CN 201910611790A CN 110467001 B CN110467001 B CN 110467001B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/02—Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
- B01D46/023—Pockets filters, i.e. multiple bag filters mounted on a common frame
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/02—Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
- B01D46/04—Cleaning filters
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
- B65G53/04—Conveying materials in bulk pneumatically through pipes or tubes; Air slides
- B65G53/16—Gas pressure systems operating with fluidisation of the materials
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
- B65G53/34—Details
- B65G53/40—Feeding or discharging devices
- B65G53/50—Pneumatic devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
- B65G53/34—Details
- B65G53/58—Devices for accelerating or decelerating flow of the materials; Use of pressure generators
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Air Transport Of Granular Materials (AREA)
Abstract
The utility model provides a dustless transport of powder is with transporting pump, which comprises a pump body, the both ends of the pump body are provided with upper cover and the low head that forms the seal chamber with the pump body respectively, be provided with the vacuum connection pipe of being connected with outside vacuum generator on the upper cover, it is provided with the material conveyer pipe with powder material discharge transportation pump to transport the pump lower extreme, be provided with the inlet pipe on the pump body, the pump body is provided with a material gas separable set in the direction that the inlet pipe was located the upper cover at least, when being provided with a plurality of material gas separable sets, the via hole of the pump body on the material gas separable set in the direction that the inlet pipe was located the upper cover reduces gradually. According to the invention, after a material-gas mixture is input into a pump body, an upward suction force is generated through a vacuum generator, part of materials automatically fall down, after floating powder materials and gas pass through a material-gas separation component, the powder materials are further separated from conveying gas, after the floating powder materials and the gas pass through the material-gas separation component, the conveying gas is discharged by the vacuum generator, the powder materials fall down, and the powder materials are conveyed by positive pressure and discharged from a material conveying pipe.
Description
Technical Field
The invention relates to the field of powder material conveying, in particular to a transfer pump for dustless powder conveying.
Background
In the field of powder material conveying, the powder material is conveyed in a pneumatic conveying mode, the pneumatic conveying utilizes the energy of airflow to convey the powder material in an airtight pipeline along the airflow direction, and the pneumatic conveying is a specific application of a fluidization technology. The pneumatic conveying device has simple structure and convenient operation, can be used for horizontal, vertical or inclined conveying, and can simultaneously carry out physical operations or certain chemical operations such as heating, cooling, drying, airflow classification and the like on materials in the conveying process. The pneumatic conveying is mainly characterized by large conveying capacity, long conveying distance and high conveying speed; it is possible to charge at one location and then discharge at multiple locations. Due to the characteristics of pneumatic transmission, the pneumatic transmission is widely applied to the aspects of powder and granular material transmission, such as departments of electric power, chemical industry, metallurgy, cement, grain and the like.
After the transport is finished, need to separate the gaseous and the powder material of carrying, how to improve gaseous and powder separation degree, and it is the technical problem who urgently needs to solve to improve and reduce and transport the loss.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides a transfer pump for dust-free powder conveying.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a dustless transport of powder is with transporting pump, includes the pump body, and the both ends of the pump body are provided with upper cover and the low head that forms the seal chamber with the pump body respectively, be provided with the vacuum connecting pipe of being connected with outside vacuum generator on the upper cover, transport the pump lower extreme and be provided with the material conveying pipe of transporting the pump with powder material discharge, be provided with the inlet pipe on the pump body, the pump body is provided with a material gas separating assembly in the direction that the inlet pipe was located the upper cover at least, and when being provided with a plurality of material gas separating assemblies, the via hole of the pump body on the material gas separating assembly of the direction that the inlet pipe was located the upper cover reduces gradually.
The first scheme of the material-gas separation assembly comprises a first material-gas separation assembly, wherein the first material-gas separation assembly comprises even feeding pipes, every two feeding pipes form a group, each group of feeding pipes are inserted into the pump body and form a rotational flow opposite impact structure with the cavity in the pump body, and the feeding pipes serve as first through holes.
The second scheme of the material-gas separation assembly comprises a second material-gas separation assembly, the second material-gas separation assembly comprises a collision separation cavity coaxially arranged in the pump body, the collision separation cavity comprises a material-gas outlet and a feed opening arranged at the lower end part, the outer shell of the collision separation cavity is of a variable cross section, the outer shell at the material-gas outlet is hermetically connected with the inner side wall of the pump body, and a gap is formed between the outer side wall of the collision separation cavity close to the feed opening and the inner side wall of the pump body; and a plurality of second through holes are distributed on the side wall of the collision separation cavity.
In a second aspect of the gas-liquid separation module, the feed opening has a lower level than the feed tube extending into the pump body inner port.
The third scheme of material gas separating assembly, including third material gas separating assembly, third material gas separating assembly sets up between upper cover and the cavity, third material gas separating assembly includes the support piece that will expect the gas access direction and divide into two regions, the through-hole of filter bag is crossed in the installation has been seted up on the support piece, the hole of the bag face of filter bag is the third via hole, still be provided with the drive arrangement that orders about the dust that crosses the bag surface and fall on the pump body, gaseous accessible powder material can not pass through, the bag mouth outward flange of filter bag and the outward flange sealing connection of through-hole.
The third aspect of the feed gas separation module is further defined by the filter bag having a keel therein supporting the filter bag.
In a third aspect of the material-gas separation module, the driving device is a pulse blowing device, and a blowing portion of the pulse blowing device is disposed above a mouth of the filter bag.
In order to measure the pressure of different areas of the pump body, a pressure transmitter is arranged at the inlet of each material-gas separation assembly on the pump body.
And limiting positive-pressure conveying materials, wherein positive-pressure feeding components are arranged on the lower end enclosure and the pump body close to the lower end enclosure, and are positioned below the feeding pipe.
The positive pressure conveying material is further limited, the powder material fluidization device further comprises a fluidization pipe group for fluidizing the powder material, and the fluidization pipe group is arranged at the powder accumulation position in the pump body.
The invention has the advantages that:
(1) according to the invention, the pump body is in a vacuum negative pressure state by connecting the upper end enclosure with the vacuum generator, external powder is sucked into the pump by using suction force generated by negative pressure, negative pressure feeding of the powder is realized, after a material-gas mixture is input into the pump body, part of the material automatically falls down due to the action of self gravity of the powder material, the floating powder material and gas pass through one or a plurality of material-gas separation assemblies in sequence, the powder material is further separated from conveying gas, the conveying gas is discharged by the vacuum generator after passing through the material-gas separation assemblies, the powder material falls down, after feeding is finished, the powder material is discharged from the material conveying pipe by using positive pressure conveying, and the material-gas separation rate is improved by the material-gas separation assembly with gradually reduced through holes.
(2) The first scheme of the material-gas separation assembly is that an inserted feed pipe and a cavity in a pump body form a rotational flow opposite flushing structure, material gas entering the pump body from one feed pipe in each group of feed pipes rotates clockwise along the inner side wall of the pump body, material gas entering the pump body from the other feed pipe rotates anticlockwise along the inner side wall of the pump body, the two material gas flows collide, and finally, part of the material collides, so that the part of the material gas moves downwards under the action of gravity after kinetic energy loss is caused, and downward gas flows generated after collision can apply force to powder materials below the material gas flow. And first material gas separation subassembly directly uses the inlet pipe, when realizing the feeding, can also realize material gas separation.
(3) The second scheme of material gas separation subassembly is under vacuum generator's effect, makes material gas and collision separation cavity's lateral wall collision, under collision stall and the effect of gravity, falls along with the powder material that transports gas to realize powder material and transport gas separation.
(4) The horizontal height of the feed opening is lower than the horizontal height of the feed pipe extending into the inner port of the pump body, so that the materials are prevented from entering the material-gas separation area under the action of airflow in the feed pipe.
(5) The third scheme of gas separation subassembly is through crossing the filter bag with powder material with carry the gas separation, and the powder material that attaches to on crossing the filter bag orders about through drive arrangement and crosses the filter bag shake and fall to realize powder material and transport gas separation, and also prevent that powder material from blockking the third via hole on crossing the filter bag.
(6) The setting up of fossil fragments makes the filter bag strut, prevents to cross the filter bag and piles up and make filtration area reduce, reduces the filter effect.
(7) The setting of fluidization nest of tubes is in order to prevent that the pump body is close to the unable normal whereabouts of the powder material bridging that material conveying pipe department is piled up, and fluidization nest of tubes can carry out fluidization to the powder material in the pump body and handle, increases the mobility of material when preventing the material bridging, makes the powder material be in and does benefit to the transport condition.
(8) The pressure transmitter can detect that the vacuum degree in the pump body reaches the preset requirement of the current position, and provides data support for adjusting the working state of the transfer pump by monitoring the air pressure of the current position.
(9) The invention realizes negative pressure feeding and positive pressure feeding in one pump body, realizes dustless conveying of powder materials and improves the safety of the working environment.
(10) The problem of long-distance conveying can be solved by adopting a positive pressure blowing mode, but the dust-raising property of the powder material easily causes the problems of environmental pollution and harm to human health when the powder material is conveyed by adopting the positive pressure conveying mode; the problem of dust emission can be solved to a great extent by negative pressure conveying, but the conveying distance of powder materials is often greatly limited due to limitation of limit negative pressure; the invention realizes the dust-free long-distance conveying problem by combining positive pressure and negative pressure.
Drawings
Fig. 1 and 2 are front views of different sides of the invention.
Fig. 3 is a cross-sectional view of the present invention.
FIG. 4 is a top view of a third feed gas separation module.
FIG. 5 is a block diagram of a second feed gas separation module and a third feed gas separation module.
The notations in the figures have the following meanings:
1-upper seal head 2-pump body
3-collision separation cavity 31-second via hole 32-feed opening 33-material gas outlet
4-lower end enclosure 5-upper pressurizing pipe 6-first pressure transmitter 7-middle positive pressure fluidizing pipe
8-positive pressure feeding pipe 9-bottom positive pressure fluidizing pipe 10-bottom positive pressure fluidizing buffer pipe
11-material conveying pipe 12-access opening 13-feeding pipe 14-second pressure transmitter
15-third material gas separation component 16-pressure balance pipe 17-vacuum connecting pipe
18-third pressure transmitter 19-pulse blowing device 191-blowing part
Detailed Description
As shown in fig. 1-4, a powder is transported with no dust and is transported pump, including the pump body 2, the both ends of the pump body 2 are provided with upper cover 1 and lower cover 4 that form the seal chamber with the pump body 2 respectively, be provided with the vacuum connecting pipe 17 of being connected with outside vacuum generator on the upper cover 1, the transfer pump lower extreme is provided with the material conveyer pipe 11 of transporting the pump with powder material discharge, be provided with inlet pipe 13 on the pump body 2, the pump body 2 is provided with a material gas separable set in the direction that inlet pipe 13 locates to upper cover 1 at least, and when being provided with a plurality of material gas separable sets, the via hole that the pump body 2 located the material gas separable set in the direction of upper cover 1 at inlet pipe 13 reduces gradually.
Three material gas separation components are taken as an example, and the three material gas separation components can act independently, can act in a pairwise matching way, and can act in a three-in-one matching way. The three feed gas separation modules are described in detail below.
Example 1
In this embodiment, the gas separation module comprises only the first gas separation module.
As shown in fig. 1 to 3, the number of the feed pipes 13 is even, every two feed pipes 13 form a group, each group of feed pipes 13 is inserted into the pump body 2 and forms a swirling flow hedging structure in the cavity of the pump body 2, and the feed pipes 13 serve as first through holes. Wherein the pump body 2 is further provided with a first pressure transmitter 6 at the position of the feeding pipe 13, in order to keep the pressure balance in the pump body 2, the upper end enclosure 1 is further provided with a pressure balance pipe 16 communicated with the atmosphere, and the pressure balance pipe 16 is provided with a valve. The vacuum connecting pipe 17 is connected with an external vacuum generating device, other manifolds on the pump body 2 are sealed by valves and are used for providing a vacuum negative pressure environment for the pump body 2 by matching with the vacuum generating device, when the first pressure transmitter 6 detects that the vacuum degree in the pump body 2 reaches a preset requirement, the feeding pipe 13 is communicated with the manifold of external materials, and the negative pressure feeding of powder materials is realized by utilizing the vacuum in the pump body 2.
The inserted feed pipes 13 and the cavity in the pump body 2 form a rotational flow opposite flushing structure, the feed gas entering the pump body 2 from one feed pipe 13 in each group of feed pipes 13 rotates clockwise along the inner side wall of the pump body 2, the feed gas entering the pump body 2 from the other feed pipe 13 rotates anticlockwise along the inner side wall of the pump body 2, the two feed gas flows collide with each other and simultaneously decelerate by friction with the inner wall of the pump body 2, finally, the part of the material moves downwards under the action of gravity after kinetic energy loss is realized, and the downward air flow generated after collision can apply force to the powder material below. In fig. 1-3, 2 feed pipes 13 are used, if several feed pipes 13 can be arranged in parallel above each other, in order to achieve the effect and to match the environment.
The pump body 2 is also provided with an upper pressurizing pipe 5 which penetrates through the pump body 2 to the central part of the pump body 2, and the upper pressurizing pipe 5 is arranged to enable gas output by the upper pressurizing pipe 5 to diffuse outwards from the central part of the pump body 2, so that the pressurizing effect is improved.
The lower seal head 4 and the pump body 2 close to the lower seal head 4 are provided with positive pressure feeding components, and the positive pressure feeding components are positioned below the feeding pipe 13.
Other embodiments are possible, such as an array of a plurality of first gas separation modules in an upward direction within the pump body 2, each first gas separation module being separated by a partition.
Example 2
In this embodiment, the feed gas separation module comprises only the second feed gas separation module.
As shown in fig. 1-3 and 5, a collision separation cavity 3 is coaxially arranged inside the pump body 2, the collision separation cavity 3 includes a material gas outlet 33 and a feed opening 32 arranged at a lower end portion, an outer shell of the collision separation cavity 3 is of a variable cross section, the outer shell at the material gas outlet 33 is hermetically connected with an inner side wall of the pump body 2, and a gap is formed between an outer side wall of the collision separation cavity 3 close to the feed opening 32 and the inner side wall of the pump body 2; and a plurality of second through holes 31 are distributed on the side wall of the collision separation cavity 3 to form a second material gas separation component. Under the effect of vacuum generator, make material gas and collision separation cavity 3's lateral wall collision, under the effect of collision stall and gravity, along with transporting gaseous powder material whereabouts to realize powder material and transport gas separation.
The level of the feed opening 32 is lower than the level of the port of the feed pipe 13 extending into the pump body 2, so that the material is prevented from entering the material-gas separation region again under the action of the gas flow in the feed pipe 13.
In this embodiment, the pump body 2 is further provided with a second pressure transmitter 14 at the gas outlet 33, for detecting whether the vacuum degree in the pump body 2 at the gas outlet 33 meets a predetermined requirement. In order to keep the pressure balance in the pump body 2, a pressure balance pipe 16 communicated with the atmosphere is further arranged on the upper seal head 1, and a valve is arranged on the pressure balance pipe 16.
Still be provided with the upper portion pressure boost pipe 5 that passes the pump body 2 and collision separation cavity 3 to collision separation cavity 3 central part on the pump body 2, upper portion pressure boost pipe 5 downward sloping stretches into collision separation cavity 3, and the setting of upper portion pressure boost pipe 5 makes the gaseous from pump body 2 central part outward diffusion of upper portion pressure boost pipe 5 output, improves the pressure boost effect to the powder that the pressure differential inside and outside collision separation cavity 3 in the diffusion process will be attached to on collision separation cavity 3 second via hole 31 blows off, moreover, upper portion pressure boost pipe 5 passes pump body 2 and collision separation cavity 3, also plays the effect that a lower part supported in pump body 2 to collision separation cavity 3.
Other embodiments are also possible, such as a plurality of second material-gas separation modules arranged in an upward direction in the pump body 2, and the apertures of the second through holes 31 on the plurality of collision separation cavities 3 are gradually reduced from bottom to top.
Example 3
In this embodiment, the gas separation module comprises only the third gas separation module 15.
As shown in fig. 1-5, be provided with third material gas separation module 15 between upper cover 1 and the cavity, third material gas separation module 15 includes the support piece that will expect that the gas path direction falls into two regions, set up the through-hole that the installation was crossed the filter bag on the support piece, the hole of crossing the bag face of filter bag is the third via hole, still be provided with on the pump body 2 and order about the drive arrangement that falls of the dust of crossing the filter bag surface, gaseous accessible powder material can not pass through, the sack outward flange of crossing the filter bag is connected with the outward flange sealing of through-hole. The powder material is separated from the conveying gas through the filter bag, the powder material attached to the filter bag is driven by the driving device to shake and fall down through the filter bag, so that the powder material is separated from the conveying gas, and the powder material is prevented from blocking a third through hole in the filter bag. In this embodiment, the driving device is a second pulse blowing device 19, and the blowing portion 191 of the pulse blowing device 19 is disposed above the mouth of the filter bag.
Be provided with the fossil fragments (not shown in the figure) that support and cross the filter bag in crossing the filter bag, the setting up of fossil fragments makes the filter bag strut, prevents to cross the filter bag and piles up and make filter area reduce, reduces the filter effect.
In this embodiment, the pump body 2 is further provided with a third pressure transmitter 18 on the inner side of the upper end enclosure 1, the pump body 2 is provided with a second pressure transmitter 14, the detection position of the second pressure transmitter 14 is located on the outer side of the filter bag, and as the pulse injection device 19 is connected with an external compressed air source, when the control device in the transfer pump detects that the pressure difference between the third pressure transmitter 18 and the second pressure transmitter 14 reaches a predetermined limit value, the pulse injection device 19 is started to perform a back-blowing operation on the filter bag. In order to keep the pressure balance in the pump body 2, a pressure balance pipe 16 communicated with the atmosphere is further arranged on the upper seal head 1, and a valve is arranged on the pressure balance pipe 16. In this embodiment, the filter bag is a cloth bag, and the air permeability of the cloth bag is determined according to the diameter of the filtered dust particles.
The pump body 2 is also provided with an upper pressurizing pipe 5 which penetrates through the pump body 2 to the central part of the pump body 2, and the upper pressurizing pipe 5 is arranged to enable gas output by the upper pressurizing pipe 5 to diffuse outwards from the central part of the pump body 2, so that the pressurizing effect is improved.
Other embodiments are possible, such as a plurality of third gas separation modules 15 arranged in an upward direction in the pump body 2, with the third through holes of the plurality of filter bags decreasing in diameter from bottom to top.
Example 4
As shown in fig. 1 to 5, in this embodiment, the gas-liquid separation module is formed by combining the first gas-liquid separation module in embodiment 1, the second gas-liquid separation module in embodiment 2, and the third gas-liquid separation module 15 in embodiment 3, and is arranged from bottom to top. The pressure balance pipe 16, the vacuum connecting pipe 17, the first pressure transmitter 6, the second pressure transmitter 14 and the third pressure transmitter 18 which are arranged in the same way as in the embodiment 1, the embodiment 2 and the embodiment 3 are also included.
The vacuum connecting pipe 17 is connected with a vacuum generating device manifold, other manifolds on the pump body 2 are sealed by valves, an access hole is sealed and used for providing a vacuum negative pressure environment for the pump body 2, when the first pressure transmitter 6 detects that the vacuum degree in the pump body 2 reaches a preset requirement, the feeding pipe 13 is communicated with a foreign material manifold, the vacuum in the pump body 2 is utilized to realize negative pressure feeding of powder materials, and the powder materials are subjected to first material-gas separation through a cyclone hedging structure of the feeding pipe 13. The gas with the raise dust goes upward to pass through the collision separation cavity 3 with the second through hole 31, and the powder particles fall into the lower part of the pump body 2 after collision stall, so that the secondary material gas separation is realized. The gas passing through the collision separation cavity 3 is finally subjected to third gas separation by a filter bag, and the separated gas is discharged out of the pump through a vacuum connecting pipe 17. And when the third material gas is separated, the pulse blowing device 19 is connected with an external compressed air source, and when the pressure difference between the third pressure transmitter 18 and the second pressure transmitter 14 is detected to reach a preset limit value, the pulse blowing device 19 is started to perform back blowing operation on the filter bag.
Example 5
As shown in fig. 1 to 3, in order to smoothly output the powder material falling from the transfer pump in all the embodiments, the pump body 2 is provided with an upper pressure increasing pipe 5, the lower head 4 and the pump body 2 close to the lower head 4 are provided with a positive pressure feeding assembly and a fluidizing pipe group for fluidizing the powder material, and the positive pressure feeding assembly is located below the feeding pipe 13. The fluidization pipe group is arranged at the powder accumulation position in the pump body 2.
In detail, the positive pressure feeding assembly comprises a positive pressure feeding pipe 8 and a material conveying pipe 11 which penetrate through the bottom of the pump body 2, and the positive pressure feeding pipe 8 and the material conveying pipe 11 are arranged oppositely. The fluidization pipe group comprises a middle positive pressure fluidization pipe, a bottom positive pressure fluidization buffer pipe 10 and a bottom positive pressure fluidization pipe 9, wherein the middle positive pressure fluidization buffer pipe extends into the lower seal head 4 and is arranged oppositely, and the middle positive pressure fluidization pipe 7 extends into a powder accumulation area.
Because the space in the lower end socket 4 is not large, the bottom positive pressure fluidization buffer pipe 10 is right opposite to the bottom positive pressure fluidization pipe 9, and has a buffering effect on air blown out from the bottom positive pressure fluidization pipe 9, so that the air pressure in the space is more uniformly distributed; in addition, when the air intake is too large, buffer tube 10 can be vented to the outside by a bottom positive pressure fluidization to control the pressure.
When the material volume reaches the appointed requirement in the transportation pump body 2, disconnection vacuum connection pipe 17, the connection of inlet pipe 13 and outside manifold, malleation balance pipe passes through valve and atmosphere intercommunication, 2 internal pressures in the balanced pump body, then with upper portion booster tube 5, middle part malleation fluidization pipe 7, bottom malleation fluidization pipe 9 and compressed air source intercommunication, carry out pressurization fluidization to the material in the pump body 2 and handle, make the material be in and do benefit to transport state, at last with malleation conveying pipe 8 and compressed air source intercommunication, material conveying pipe 11 and outside feeding pipeline intercommunication, carry out the malleation pay-off.
In order to facilitate the maintenance of the pump body, the pump body is also provided with an access hole 12.
The invention is not to be considered as limited to the specific embodiments shown and described, but is to be understood to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the appended claims.
Claims (6)
1. The transfer pump for dustless powder conveying is characterized by comprising a pump body (2), wherein an upper seal head (1) and a lower seal head (4) which form a sealed cavity with the pump body (2) are respectively arranged at two ends of the pump body (2), a vacuum connecting pipe (17) connected with an external vacuum generator is arranged on the upper seal head (1), a material conveying pipe (11) for discharging powder materials out of the transfer pump is arranged at the lower end of the transfer pump, a feeding pipe (13) is arranged on the pump body (2), at least one material-gas separation assembly is arranged on the pump body (2) in the direction from the feeding pipe (13) to the upper seal head (1), and when a plurality of material-gas separation assemblies are arranged, through holes in the material-gas separation assembly on the pump body (2) in the direction from the feeding pipe (13) to the upper seal head (1) are gradually reduced;
the material gas separation component comprises a second material gas separation component, the second material gas separation component comprises a collision separation cavity (3) coaxially arranged in the pump body (2), the collision separation cavity (3) comprises a material gas outlet (33) and a feed opening (32) arranged at the lower end part, the outer shell of the collision separation cavity (3) is of a variable cross section, the outer shell at the material gas outlet (33) is hermetically connected with the inner side wall of the pump body (2), and a gap is reserved between the outer side wall of the collision separation cavity (3) close to the feed opening (32) and the inner side wall of the pump body (2); a plurality of second through holes (31) are distributed on the side wall of the collision separation cavity (3);
the horizontal height of the feed opening (32) is lower than the horizontal height of the port of the feed pipe (13) extending into the pump body (2);
the material gas separation assembly comprises a third material gas separation assembly (15), the third material gas separation assembly (15) is arranged between the upper end enclosure (1) and the cavity, the third material gas separation assembly (15) comprises a support piece which divides the material gas passage direction into two areas, a through hole for mounting the filter bag is formed in the support piece, a hole in the bag surface of the filter bag is a third through hole, a driving device which drives dust on the outer surface of the filter bag to fall off is further arranged on the pump body (2), gas can pass through powder materials and cannot pass through, and the outer edge of the bag opening of the filter bag is hermetically connected with the outer edge of the through hole;
the material gas separation assembly comprises a first material gas separation assembly, the first material gas separation assembly comprises even number feeding pipes (13), every two feeding pipes (13) form a group, each group of feeding pipes (13) is inserted into the pump body (2) and forms a rotational flow hedging structure with the inner cavity of the pump body (2), and the feeding pipes (13) are used as first via holes.
2. The transfer pump for dust-free powder transportation according to claim 1, wherein a keel for supporting the filter bag is arranged in the filter bag.
3. The transfer pump for dust-free powder transportation according to claim 2, wherein the driving device is a pulse blowing device (19), and a blowing part (191) of the pulse blowing device (19) is arranged above a mouth of the filter bag.
4. The transfer pump for dust-free powder conveying according to claim 1, wherein a pressure transmitter is arranged at an outlet of each material-gas separation assembly on the pump body (2).
5. The transfer pump for conveying dustless powder according to claim 1, wherein the lower seal head (4) and the pump body (2) close to the lower seal head (4) are provided with positive pressure feeding components, and the positive pressure feeding components are positioned below the feeding pipe (13).
6. The transfer pump for transporting powder in a dustless manner according to claim 5, further comprising a fluidization pipe set for fluidizing the powder material, wherein the fluidization pipe set is disposed at the powder accumulation position in the pump body (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910611790.XA CN110467001B (en) | 2019-07-08 | 2019-07-08 | Transfer pump for dust-free powder conveying |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910611790.XA CN110467001B (en) | 2019-07-08 | 2019-07-08 | Transfer pump for dust-free powder conveying |
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| CN110467001A CN110467001A (en) | 2019-11-19 |
| CN110467001B true CN110467001B (en) | 2021-11-19 |
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| CN111482270B (en) * | 2020-04-08 | 2022-01-04 | 安吉昱诚机械有限公司 | Metal dust recovery device |
| CN112502652A (en) * | 2020-11-18 | 2021-03-16 | 南京琮楷科技有限公司 | Dust falling device used in gas drilling |
| CN113443441B (en) * | 2021-07-28 | 2022-08-05 | 河津市炬华铝业有限公司 | Continuous powder feeder and method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP3024923B2 (en) * | 1994-07-08 | 2000-03-27 | 松下電工株式会社 | Air flow transfer device |
| CN2578282Y (en) * | 2002-09-16 | 2003-10-08 | 周良荣 | Combined segregator for pneuamtic bulk material conveying |
| CN100592931C (en) * | 2007-05-11 | 2010-03-03 | 贵阳铝镁设计研究院 | Gas and solid separating method and device for gas transporting material system |
| CN102872656A (en) * | 2012-10-11 | 2013-01-16 | 无锡多灵环保工程设备有限公司 | High-temperature cyclone secondary deduster |
| CN203143698U (en) * | 2013-03-25 | 2013-08-21 | 深圳市杰维工业设备有限公司 | Efficient vacuum loading machine |
| CN104176503B (en) * | 2013-05-22 | 2016-06-29 | 欧才权 | Platoon type continuous vacuum feeder |
| CN105000389A (en) * | 2015-06-29 | 2015-10-28 | 江苏楷益智能科技有限公司 | Aggregate mechanism for pneumatic conveyor |
| CN204957808U (en) * | 2015-09-10 | 2016-01-13 | 浙江迦南科技股份有限公司 | Pure pneumatic vacuum transfer units |
| CN204957434U (en) * | 2015-09-11 | 2016-01-13 | 浙江三禾生物工程有限公司 | Vacuum feeding machine |
| CN204957809U (en) * | 2015-09-21 | 2016-01-13 | 石家庄博德宁机械设备有限公司 | Novel vacuum material loading machine |
| CN105366368B (en) * | 2015-10-26 | 2018-03-27 | 天津鑫利恒科技有限公司 | Pneumatic discharge apparatus |
| CN207536784U (en) * | 2017-09-30 | 2018-06-26 | 湖南三德科技股份有限公司 | A kind of buffer unit for sample pneumatic conveyer system |
| CN208345313U (en) * | 2018-03-30 | 2019-01-08 | 宿迁柏特粮食设备有限公司 | A kind of grain absorber discharge tube |
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2019
- 2019-07-08 CN CN201910611790.XA patent/CN110467001B/en active Active
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