CN111992563A

CN111992563A - Independent negative pressure exhaust dust removal device

Info

Publication number: CN111992563A
Application number: CN202010725245.6A
Authority: CN
Inventors: 金嘉麟; 何建怡
Original assignee: Tianjin Weiyin Printing Co ltd
Current assignee: Tianjin Weiyin Printing Co ltd
Priority date: 2020-07-25
Filing date: 2020-07-25
Publication date: 2020-11-27

Abstract

The application discloses stand alone type negative pressure exhaust dust collector, it relates to the technical field that indoor exhaust removed dust, it includes the equipment body, support the steelframe, a plurality of dust boards of setting on supporting the steelframe lateral wall and the sealing door of setting on one of them dust board lateral wall that slides, the lateral wall that the dust board is located the sealing door is equipped with the access hole, be equipped with the coupling assembling that is used for fixed dust board on the support steelframe, it forms the dust hood that is used for covering the equipment body with a plurality of dust boards combination to support the steelframe, be equipped with the dust extraction mechanism that is used for taking out the inside dust of dust hood and harmful gas on the dust hood. This application closes through enclosing near with equipment body and forms independent space to take out dirt alone to the dust and the harmful gas that equipment body produced, the effectual energy of having practiced thrift, dust collection efficiency is high.

Description

Independent negative pressure exhaust dust removal device

Technical Field

The application relates to the technical field of indoor exhaust and dust removal, in particular to an independent negative-pressure exhaust and dust removal device.

Background

The production workshops of the industries such as paint spraying and coating, stone processing, metal polishing, furniture polishing and printing ink printing can generate a large amount of dust and harmful gas, once the dust and the harmful gas are sucked into nasal cavities by people, the health of operators can be threatened, and therefore dust removal equipment needs to be installed in the production workshops.

The traditional Chinese patent with publication number CN209441023U discloses a high-efficiency dust removal device for a four-color printing machine, which comprises a printing machine body, wherein the printing machine body comprises four color printers which are sequentially arranged, a conveyor belt is arranged between every two adjacent color printers, the dust removal device also comprises a dust removal pipeline, one end of the dust removal pipeline is connected with a horn cover and extends to the upper part of the printing machine body, an opening is arranged at the end part, the opening faces the printing machine body, the other end of the dust removal pipeline is far away from the printing machine body, and a turbine fan is arranged at the end part; when the turbo fan works, air in the dust removal pipeline is extracted to enable the dust removal pipeline to form negative pressure, and the air containing micro dust is sucked into the dust removal pipeline from the opening, so that the micro dust is far away from the printer body, the influence of the micro dust on the printer body is reduced, and the service life of the printer body is prolonged.

In view of the above-described related art, the inventors consider that the following drawbacks exist: this printing machine adopts turbofan, dust removal pipeline and loudspeaker cover to carry out the negative pressure dust removal to dust and harmful gas, because the workshop inner space is great, has certain space between loudspeaker cover and the printing machine, and the dust removal area is limited, and the dust is from scattering to the environment all around easily, for guaranteeing dust removal effect, has to let turbofan keep higher wind speed, just can absorb more dust, and the power consumption is higher.

Disclosure of Invention

In order to improve the problem that the dust that the equipment during operation produced is everywhere diffused, this application provides a stand alone type negative pressure exhaust dust collector.

The application provides a stand alone type negative pressure exhaust dust collector adopts following technical scheme:

the utility model provides a stand alone type negative pressure dust collector, includes the equipment body and is used for the dirt mechanism of taking out that removes dust, take out dirt mechanism and include suction hood, exhaust pipe and fan, still including supporting the steelframe, setting up a plurality of fender dirt boards on supporting the steelframe lateral wall and sliding the sealing door that sets up on one of them fender dirt board lateral wall, the lateral wall that keeps off the dirt board and be located the sealing door is equipped with the access hole, be equipped with the coupling assembling that is used for fixed fender dirt board on the support steelframe, it forms the fender dust hood that is used for covering the equipment body with a plurality of fender dirt board combinations to support the steelframe, the suction hood is installed at the inner wall that keeps off the dust hood and is located the top of equipment body, the roof at the fender dust hood is installed to the fan, the roof of fender dust hood is passed to the one end of exhaust pipe and.

Through adopting above-mentioned technical scheme, at first coupling assembling will keep off the dirt board and fix the top and lateral wall all around at the support steelframe respectively for enclose between support steelframe and the dirt board and close and be formed with the dust hood that is used for covering the equipment body, make near equipment body enclose and close and form independent space, avoid equipment body to add the dust and the harmful gas that produce and diffuse to the external world man-hour, and influence the environment in workshop.

When the equipment body is processed, the fan is started, dust and gas generated during the operation of the equipment body can be extracted through the exhaust pipe and the dust hood, negative pressure dust removal is carried out on the independent equipment body, the dust removal area is effectively reduced, so that the wind speed of the fan is kept constant, and energy waste caused by overlarge wind speed is avoided; the arrangement of the sealing door is convenient for personnel to enter the dust shield to overhaul, maintain or operate and process the equipment body; the dust removal device with the structure forms the dust shield by combining the supporting steel frame and the dust shield plate, so that dust and harmful gas generated by equipment can be removed independently, the energy-saving effect is good, and the dust removal efficiency is high.

Furthermore, the supporting steel frame comprises two columns, two upper cross beams, two upper longitudinal beams, two lower cross beams and two lower longitudinal beams, wherein the two columns are arranged in parallel, the two upper cross beams are arranged oppositely, the two upper longitudinal beams are arranged oppositely, the two lower cross beams are arranged oppositely, the two lower longitudinal beams are arranged oppositely, the two ends of the upper cross beams and the two upper longitudinal beams are provided with upper insertion blocks, the top side walls of the columns are provided with upper insertion slots for the insertion of the upper insertion blocks, the two ends of the lower cross beams and the two lower longitudinal beams are provided with lower insertion blocks, the bottom side walls of the columns are provided with lower insertion slots for the insertion of the lower insertion blocks, the access hole is penetrated through with the lower surface of the dust blocking plate and is penetrated through with the lower surface of the dust blocking plate, one side wall of the lower longitudinal beam is provided with a feeding hole communicated with the access hole, the feeding hole is penetrated.

By adopting the technical scheme, during installation, the upper insert block is inserted into the upper slot, so that the assembly connection of the upper cross beam, the upper longitudinal beam and the upright post is realized, then the lower insert block is inserted into the lower slot, so that the assembly connection of the lower cross beam, the lower longitudinal beam and the upright post is realized, finally the upper cross beam, the upper longitudinal beam, the lower cross beam and the lower longitudinal beam can be assembled to form the supporting steel frame, and the upright post, the upper cross beam, the upper longitudinal beam, the lower cross beam and the lower longitudinal beam are all hollow square steel, so that the assembled and molded supporting steel frame has good structural strength; this pin-connected panel supports the steelframe, and the personnel of being convenient for are assembled on the scene.

The feeding port penetrates through the upper surface, the lower surface and the two side walls of the lower longitudinal beam, so that the lower longitudinal beam can be divided into two parts, and when the equipment body needs to be fed, a worker can feed processing raw materials into the dust hood through the ground cattle, and the equipment is convenient and practical; the bottom of sealing door extends to in the pay-off mouth, has reduced the gap area that the dust passes through between sealing door and the ground, has reduced the probability that the dust diffuses to the external world.

Further, coupling assembling includes magnetic sealing pad and connecting block, the dust board adopts PTFE stretch-draw membrane preparation shaping, the connecting block welds the peripheral wall of setting at the dust board respectively, the lateral wall of stand, entablature, last longeron, bottom end rail and bottom end rail all is equipped with and supplies connecting block male spread groove, magnetic sealing pad is respectively adhesive fixation at the cell wall of spread groove, adhesive fixation at the outer wall of connecting block, two magnetic sealing pad laminates each other.

By adopting the technical scheme, the dust guard plate is made of a plurality of PTFE (polytetrafluoroethylene) tension films and is in a plate shape, and the PTFE film material is formed by coating polytetrafluoroethylene resin on superfine glass fiber fabric, so that the dust guard plate has excellent ultraviolet resistance, ageing resistance and flame retardance, high strength, good durability, fire resistance, flame retardancy, good self-cleaning property and long service life; and the PTFE stretching film has better welding performance, so that the connecting block can be fixedly welded on the peripheral wall of the dust guard plate in advance.

When the connecting block is inserted into the connecting groove, the two magnetic sealing gaskets are attached to each other, and the two magnetic sealing gaskets are tightly attached to each other due to certain magnetic force of the magnetic sealing gaskets, so that the connecting block can be stably fixed in the connecting groove, and the dust baffle plate can be fixedly installed; the magnetic sealing gasket has a good sealing effect, so that the dust baffle plate is in sealing connection with the supporting steel frame, air near the equipment body can be prevented from seeping out through a connecting gap between the dust baffle plate and the supporting steel frame, and dust and harmful gas in the dust hood are prevented from being diffused all around; this connected mode, simple structure, easy to assemble.

Further, a cavity is arranged in the stand column, the cavity is respectively communicated with the upper slot and the lower slot, two opposite L-shaped abutting plates are arranged in the cavity in a sliding mode, the opposite side walls of the two L-shaped abutting plates, which are opposite to each other, are respectively provided with a first serrated plate, the opposite side walls of the upper insertion block and the lower insertion block are respectively provided with a second serrated plate, the first serrated plate and the second serrated plate are mutually meshed, and an adjusting assembly for driving the two L-shaped abutting plates to be close to or away from each other is arranged in the cavity.

Through adopting above-mentioned technical scheme, utilize two L types of adjusting part drive to support the board and keep away from each other, drive two second serration plates and keep away from each other for second serration plate is close to first serration plate direction, until second serration plate and first serration plate meshing, and then can be fixed in last slot with last inserted block, inserted block is fixed under in the slot, realized the stand respectively with the entablature, last longeron, fixed connection between bottom end rail and the longeron, and then strengthened the stability of supporting the steelframe.

Furthermore, the adjusting assembly comprises a support plate arranged on the inner wall of the cavity, a linkage block arranged on the support plate in a sliding manner, an adjusting rod connected with the linkage block, two abutting blocks arranged in the cavity in a sliding manner, and an upper support rod and a lower support rod which are respectively arranged on the two abutting blocks and deviate from the side wall, wherein one ends of the upper support rod and the lower support rod, which are far away from the abutting blocks, are respectively connected with the two L-shaped abutting plates, the linkage block is positioned between the two abutting blocks, two side walls of the linkage block are respectively provided with a guide inclined plane matched with the two abutting blocks in a sliding manner, the lower end of the guide inclined plane faces the inner wall of the cavity, the higher end of the guide inclined plane faces the adjusting rod, one end of the adjusting rod, which is far away from the linkage block, penetrates through the side wall of.

By adopting the technical scheme, during adjustment, the adjusting rod is pushed, the linkage block is slidably moved between the two abutting blocks, so that the higher end of the guide inclined plane is gradually close to the abutting blocks, the two abutting blocks are further driven to be away from each other, and the two L-shaped abutting plates are further driven to be away from each other, so that the first serrated plate is driven to move towards the direction close to the second serrated plate; otherwise, the adjusting rod is pulled to enable the linkage block to move out from between the two abutting blocks, the abutting blocks are gradually far away from the higher end of the guide inclined plane, the two abutting blocks are close to each other at the moment, and then the two L-shaped abutting plates are close to each other, so that the first serrated plate moves towards the direction far away from the second serrated plate.

After first serration plate and second serration plate intermeshing, utilize the retaining member to fix the regulation pole, avoid personnel to miss the touch regulation pole, lead to the linkage piece to slide to keep two intervals between the piece stable, make first serration plate and second serration plate mesh steadily.

Further, the retaining member is including rotating the nut that sets up on the stand lateral wall and setting up the screw thread on adjusting the pole lateral wall, the lateral wall that the linkage block is located the direction inclined plane is equipped with T type piece, support the lateral wall that the block is located the direction inclined plane and be equipped with T type groove along its incline direction.

By adopting the technical scheme, the threads are arranged on the side wall of the adjusting rod, so that the adjusting rod is in threaded connection with the nut, and the arrangement of the T-shaped groove and the T-shaped block plays a role in limiting and guiding the sliding of the linkage block, so that personnel can rotate the nut to drive the adjusting rod to be in sliding connection with the nut, the rotating sliding is converted into linear sliding, the linkage block can be pushed to slide, and the operation is convenient; and adjust pole and nut threaded connection, the screw thread has self-locking function for after the linkage piece removes to suitable position, avoid personnel to miss to touch the regulation pole, lead to the linkage piece automatic sliding, improved two and supported the interval stability between the piece, so that with first serration plate and the stable meshing of second serration plate, strengthened the stability of supporting the steelframe.

Furthermore, a guide groove is formed in the cavity and in the height direction of the stand column, guide blocks sliding in the guide grooves are arranged on the side walls of the two abutting blocks, and the length of the upper supporting rod is larger than that of the lower supporting rod.

By adopting the technical scheme, the guide block and the guide groove are arranged, so that the lifting of the abutting block is limited and guided; the length dimension of lower carriage is less than the length dimension of upper bracket to adjust the pole setting at the lower height of stand lateral wall, make things convenient for personnel's operation.

Further, the inner wall that the fender dirt board is located the access hole is equipped with the extension board, the lower surface that extends the board is equipped with the piece that induced drafts that is used for extracting access hole department's air, the piece that induced drafts is including installing a plurality of loudspeaker covers at the extension board lower surface, the aspiration channel that links to each other with the loudspeaker cover and the multi-ported tube that is linked together with the aspiration channel, and is a plurality of the one end that loudspeaker cover was kept away from to the aspiration channel links to each other with the multi-.

Through adopting above-mentioned technical scheme, personnel are when opening the sealing door, along with the work of fan, through multi-ported pipe, aspiration channel and loudspeaker cover, can in time extract the air of access hole department, reduced the probability that the dust that equipment body produced drew the air in the workshop through the access hole, further improved dust removal effect, avoid influencing the production environment in the workshop.

Furthermore, the sealing door is an automatic induction door, an induction detector is arranged in the sealing door, an electric control valve is arranged in the air suction pipe, and the electric control valve is electrically connected with the induction detector.

Through adopting above-mentioned technical scheme, the inductive detector is used for gathering external signal, and when detecting the object that has the removal, the sealing door is automatic to be opened, and the automatically controlled valve is opened simultaneously, and then through loudspeaker cover, aspiration channel and multi-ported pipe, can be automatic with the air extraction of access hole department to the pump drainage tuber pipe in, can effectually avoid keeping off dust in the dirt space and harmful gas to diffuse everywhere, has realized automated work, and the dust collection efficiency is high.

Furthermore, an air supply pipe used for conveying fresh air into the dust shield is arranged on the side wall of one of the dust baffles, and one end of the air supply pipe penetrates through the side wall of the dust baffle and is connected with a square air diffuser.

By adopting the technical scheme, a fresh air conditioning system can be arranged in a production workshop, the fresh air conditioning system can process outdoor fresh air and send the processed fresh air into the air supply pipe, the air supply pipe can continuously convey fresh air to the interior of the dust hood, and the fresh air can be rapidly dispersed to the periphery of the equipment body through the square air diffuser, so that the temperature and the humidity of the air near the equipment body can be conveniently adjusted, the temperature can be conveniently adjusted for production and processing under the condition of needing certain temperature and humidity, and the environment in a dust blocking space is effectively ensured; and continuously conveying fresh air into the dust hood, controlling positive/negative pressure in the dust blocking space by controlling the fresh air/exhaust ratio, ensuring that indoor air is not interfered by the outside, and enabling the fan to stably pump dust.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the supporting steel frame and the dust baffle plate are combined to form the dust baffle cover, so that an independent space is generated around the equipment body, dust and harmful gas generated during the processing of the equipment body can be prevented from diffusing around, and the influence on the indoor environmental sanitation is avoided;

2. the dust extraction mechanism is utilized to form independent negative pressure at the equipment body, dust and harmful gas can be extracted from the equipment body independently, the dust extraction efficiency is high, the wind speed of the fan can be kept constant, and energy waste caused by overlarge wind speed is avoided;

3. when personnel approach the sealing door, the sealing door is automatically opened, and meanwhile, the electric control valve is opened, so that air at the access hole is extracted into the exhaust air pipe through the horn cover, the air suction pipe and the multi-way pipe to be exhausted, the probability that dust and harmful gas permeate into the air through the access hole is further reduced, and the dust removal effect is further improved;

4. the temperature range in the dust hood can be adjusted through a full fresh air conditioning system so as to meet the production of a certain temperature condition; meanwhile, fresh air is conveniently fed into the dust hood, and positive/negative pressure in the dust hood is controlled by controlling the ratio of fresh air to exhaust air, so that indoor air is prevented from being interfered by the outside, and the fan can stably pump dust;

5. the detachable connection of the splicing connection and the dust board of the supporting steel frame and the supporting steel frame is arranged, and the supporting steel frame and the dust board can be designed in a modularized mode in advance according to the size specification of the field device body, so that the manufacturing cost is reduced, the field installation is facilitated, and the popularization is facilitated.

Drawings

Fig. 1 is a schematic overall structure diagram of the present embodiment.

Fig. 2 is a schematic sectional view of line a-a in fig. 1.

Fig. 3 is an enlarged schematic view of a portion a in fig. 2.

Fig. 4 is a schematic cross-sectional view taken along line B-B in fig. 1.

Fig. 5 is an enlarged schematic view of a portion B in fig. 4.

Fig. 6 is an enlarged schematic view of a portion C in fig. 4.

Fig. 7 is an enlarged schematic view of a portion D in fig. 4.

In the figure: 1. a dust pumping mechanism; 1001. a dust hood; 1002. an exhaust duct; 1003. a fan; 2. an apparatus body; 3. supporting the steel frame; 31. a column; 32. an upper cross beam; 33. an upper longitudinal beam; 34. a lower cross beam; 35. a lower longitudinal beam; 36. an upper insertion block; 37. an upper slot; 38. a lower insert block; 39. a lower slot; 4. a dust guard; 5. a sealing door; 6. an access hole; 7. a connecting assembly; 71. a magnetic gasket; 72. connecting blocks; 73. connecting grooves; 8. a cavity; 9. an L-shaped abutting plate; 10. a first serrated plate; 11. a second serrated plate; 12. an adjustment assembly; 121. a linkage block; 122. adjusting a rod; 123. a resisting block; 124. an upper support rod; 125. a lower support rod; 126. a guide slope; 13. a locking member; 131. a nut; 132. a thread; 133. a T-shaped block; 134. a T-shaped groove; 14. a guide groove; 15. a guide block; 16. an extension plate; 17. an air suction member; 171. a horn cover; 172. an air suction pipe; 173. a multi-pass tube; 18. an electrically controlled valve; 19. an air supply pipe; 20. a square diffuser; 21. a feeding port.

Detailed Description

The present application is described in further detail below with reference to figures 1-7.

Example (b):

the embodiment of the application discloses stand alone type negative pressure exhaust dust collector, refer to fig. 1, dust collector is including settling equipment body 2 and the support steelframe 3 subaerial, and equipment body 2 is located and supports 3 insides of steelframe, when settling equipment body 2 and support 3 steelframes, need guarantee the flatness on ground.

In this embodiment, equipment body 2 is full automatic processing equipment, need not manual operation processing, it sets up to support steelframe 3 to be the rectangle, it all installs dust board 4 to support steelframe 3's roof and lateral wall all around, it forms dust hood to support steelframe 3 and the combination of dust board 4, dust hood is used for covering and establishes equipment body 2, one of them dust board 4's lateral wall is equipped with access hole 6, this dust board 4 is located the inner wall of access hole 6 and slides and is equipped with two relative sealing door 5, close sealing door 5, make equipment body 2 produce independent space around, avoid equipment body 2 to add the dust and the harmful gas that produce and diffuse everywhere man-hour, influence the sanitation in the workshop.

Referring to fig. 1 and 2, the top of dust hood is equipped with takes out dirt mechanism 1, take out dirt mechanism 1 and include fan 1003, fan 1003 is installed at the upper surface that supports dust board 4 at 3 tops of steelframe, the pump drainage tuber pipe 1002 of fan 1003 is connected with exhaust pipe 1002, the one end that fan 1003 was kept away from to exhaust pipe 1002 passes the lateral wall of dust board 4 and extends to inside the dust hood, the one end that exhaust pipe 1002 is located the dust hood is connected with suction hood 1001, the dust absorption mouth of suction hood 1001 is located the top in the processing position of equipment body 2.

Because the dust hood makes and forms independent space around the equipment body 2, and support steelframe 3 and prop up and establish on ground, can produce certain gap between support steelframe 3 and the ground, and then when equipment body 2 is at the during operation, start fan 1003, utilize exhaust pipe 1002 and suction hood 1001 extraction equipment body 2 near air, and then make and produce the negative pressure of certain proportion in the dust hood, and then can in time take out the dust and the harmful gas that produce with equipment body 2 processing, avoid dust and harmful gas to leak.

In this embodiment, variable frequency fan 1003 is selected for use by fan 1003, variable frequency fan 1003's setting, can change fan 1003's rotational speed, the stepless speed regulation of fan 1003 has been realized, in order to guarantee fan 1003's exhaust speed, avoid the wind speed too high and extravagant energy, install pressure sensor (not shown in the figure) at exhaust pipe 1002's inner wall, pressure sensor and fan 1003 electric connection, utilize pressure sensor real-time detection exhaust volume in the exhaust pipe 1002, keep invariable with control fan 1003's exhaust volume, high efficiency and energy saving.

A suction exhaust air pipe 1002 (not shown in the figure) of the fan 1003 can be connected to a powder gas treatment device (not shown in the figure) so as to intensively treat and exhaust dust and harmful gas; the dust removal device formed by adopting the structure is provided with the dust baffle plate 4 and the sealing door 5, so that an independent space is formed near the equipment body 2, and when dust is pumped, independent negative pressure is formed around the equipment body 2, and the dust removal effect is good; and through removing dust to solitary equipment body 2, can set up fan 1003 and keep stable wind speed and take out dirt, avoid the wind speed too high and extravagant energy, it is effectual to save energy, and dust collection efficiency is high.

Referring to fig. 1 and 2, a blast pipe 19 is fixedly arranged on the dust-blocking plate 4 on one side wall of the supporting steel frame 3, in the embodiment, a fresh air conditioning system (not shown in the figure) is installed in a production workshop, one end of the blast pipe 19 is connected with an air outlet pipe 1002 of the fresh air conditioning system, the other end of the blast pipe 19 penetrates through the side wall of the dust-blocking plate 4 and is connected with a square air diffuser 20, and the blast pipe 19 is arranged for conveying fresh air to the inside of the dust-blocking cover, and the fresh air can be rapidly dispersed to the periphery of the equipment body 2 by using the square air diffuser 20.

Fresh outdoor air can be treated by a fresh air conditioning system and then sent into the blast pipe 19, so that fresh air is continuously input into the dust shield, and negative pressure with a certain proportion is generated near the equipment body 2 when the fan 1003 draws air by controlling the fresh air/exhaust ratio and the positive pressure/negative pressure ratio in the dust shield, so that the fan 1003 can conveniently remove dust; meanwhile, fresh air is continuously fed into the dust hood through the air supply pipe 19, the temperature and the humidity of the air in the dust hood can be adjusted, and the required processing environment of the equipment body 2 is effectively guaranteed.

Referring to fig. 2, the side wall of the dust guard 4 above the access opening 6 is provided with a guide rail (not shown in the figure), the guide rail is connected with the top of the sealing door 5 in a sliding manner, and the guide rail is arranged to guide and limit the opening and closing of the sealing door 5.

In order to avoid personnel when opening sealing door 5, the dust gas that produces when equipment body 2 adds man-hour is filled in the air, is equipped with extension board 16 on the inner wall upper portion that keeps off dirt board 4 and be located access hole 6, and extension board 16 is equipped with the piece 17 that induced drafts that is used for absorbing the outside air with the length direction syntropy of access hole 6, the lower surface of extension board 16.

Referring to fig. 2, the air suction member 17 includes a plurality of horn covers 171 installed on the lower surface of the extension plate 16, an air suction pipe 172 connected to the horn covers 171, and a multi-pass pipe 173 communicated with the exhaust pipe 1002, the plurality of horn covers 171 are arranged at equal intervals along the length direction of the extension plate 16, the horn mouth of the horn cover 171 faces the ground, and one end of the plurality of air suction pipes 172 far away from the horn covers 171 is connected to the multi-pass pipe 173, so that the horn covers 171 are communicated with the exhaust pipe 1002.

When the personnel open sealing door 5, along with the work of fan 1003, through multi-ported pipe 173, aspiration channel 172 and loudspeaker cover 171, the air of 5 departments of extraction sealing door in time has reduced the probability that dust and harmful gas diffuse to the workshop, has effectually reduced the probability that dust and toxic gas diffuse to the workshop in, has improved dust removal effect, avoids influencing the production environment in the workshop.

Referring to fig. 2, in this embodiment, sealing door 5 is automatic induction door, installs inductive detector (not shown in the figure) in sealing door 5, and inductive detector is used for gathering external signal, and when detecting the object that has the removal, sealing door 5 is opened, realizes automated work, replaces the manpower to open sealing door 5, convenient and practical.

Install automatically controlled valve 18 in aspiration channel 172, automatically controlled valve 18 and inductive detector electric connection, when inductive detector detected there is the object, sealing door 5 opened, and automatically controlled valve 18 opens simultaneously, and then through loudspeaker cover 171, aspiration channel 172 and multi-ported pipe 173, with the air extraction of 6 departments of access hole to the exhaust pipe 1002 in, can effectually avoid keeping off dust cover in dust cover and harmful gas diffuse everywhere, realize automatic work, the dust collection efficiency is high.

In this embodiment, the exhaust air volume extracted by the exhaust air pipe 1002 of the fan 1003 = the fresh air volume of the air conditioner + the gap infiltration air volume + the opening infiltration air volume of the sealing door 5 + the exhaust air volume required for maintaining the negative pressure, wherein the infiltration air volume of the opening of the sealing door 5 can be considered according to the opening times per hour, the exhaust air volume required for maintaining the negative pressure can be estimated according to the ventilation times inside the dust hood after the negative pressure value inside the dust hood is determined.

Referring to fig. 2, the supporting steel frame 3 is provided with a connecting assembly 7 for fixing the dust guard plate 4, the supporting steel frame 3 comprises two columns 31 arranged in parallel, two upper beams 32 arranged oppositely, two upper longitudinal beams 33 arranged oppositely, two lower beams 34 arranged oppositely and two lower longitudinal beams 35 arranged oppositely, two ends of the upper beams 32 and the upper longitudinal beams 33 are detachably connected with the top ends of the four columns 31 respectively, two ends of the lower beams 34 and the lower longitudinal beams 35 are detachably connected with the bottom ends of the four columns 31 respectively, then the upright column 31, the upper cross beam 32, the upper longitudinal beam 33, the lower cross beam 34 and the lower longitudinal beam 35 are spliced and connected to form a rectangular supporting steel frame 3, wherein, bottom end rail 34, longeron 35 all erect in ground, and in this embodiment, stand 31, entablature 32, last longeron 33, bottom end rail 34, longeron 35 are hollow square steel for support steelframe 3 has good structural strength.

Because the equipment body 2 is large in size and weight, in the embodiment, the supporting steel frame 3 and the dust baffle plate 4 can be designed in advance according to modularization, so that the manufacturing cost is reduced, the field installation is convenient, and the popularization is convenient.

Referring to fig. 1 and 2, in this embodiment, the access hole 6 penetrates through the lower surface of the dust baffle 4, the side wall of one of the lower longitudinal beams 35 is provided with the feeding hole 21, the feeding hole 21 is communicated with the access hole 6, and the bottom of the sealing door 5 extends into the feeding hole 21, so that the gap area between the sealing door 5 and the ground is reduced, and the probability that dust is diffused to the outside is effectively reduced.

The feeding port 21 is respectively penetrated through the upper surface, the lower surface and the two side walls of the lower longitudinal beam 35, and then the lower longitudinal beam 35 can be divided into two parts, so that when the equipment body 2 needs to be fed, a person can feed raw materials to be processed into the dust hood through the ground cattle, and the device is convenient and practical.

Referring to fig. 2 and 3, the connection assembly 7 includes a magnetic sealing gasket 71 and a connection block 72, the connection block 72 is disposed on the peripheral wall of the dust guard 4, the opposite side walls of the upper beam 32 and the upper longitudinal beam 33, and the opposite side walls of the lower beam 34 and the lower longitudinal beam 35 are respectively provided with a connection groove 73 for inserting the connection block 72, the magnetic sealing gasket 71 is respectively adhered and fixed on the groove wall of the connection groove 73 and the outer wall of the connection block 72, because the upright column 31, the upper beam 32, the upper longitudinal beam 33, the lower beam 34 and the lower longitudinal beam 35 are connected by splicing, and when being installed, the connection block 72 can be inserted into the connection groove 73, so that the.

Because the magnetic sealing gaskets 71 have certain magnetic force, when the connecting block 72 is inserted into the connecting groove 73, the two magnetic sealing gaskets 71 are tightly attached, so that the connecting block 72 can be stably fixed in the connecting groove 73, and the dust baffle plate 4 can be fixedly installed; and the magnetic sealing gasket 71 has good sealing effect, realizes the sealing connection of the dust baffle plate 4 and the supporting steel frame 3, and further can prevent the air near the equipment body 2 from seeping through the connecting gap between the dust baffle plate 4 and the supporting steel frame 3, and prevent dust and harmful gas in the dust baffle cover from diffusing everywhere.

In the embodiment, the dust guard plate 4 is made of a plurality of PTFE (polytetrafluoroethylene) tension films and is in a plate shape, the PTFE film material is formed by coating polytetrafluoroethylene resin on superfine glass fiber fabric, and the dust guard plate has excellent ultraviolet resistance, ageing resistance and flame retardance, high strength, good durability, fire resistance, flame retardancy, good self-cleaning property and long service life; and the PTFE stretched film has a good welding property so that the joint block 72 can be fixedly welded to the peripheral wall of the dust barrier 4.

Referring to fig. 4 and 5, the upper cross beam 32 and the upper longitudinal beam 33 are provided with upper insertion blocks 36 at two ends, and the top side wall of the upright column 31 is provided with upper insertion slots 37 for the upper insertion blocks 36 to be inserted, so that the upper cross beam 32, the upper longitudinal beam 33 and the upright column 31 can be detachably connected, and the personnel can assemble the device on site conveniently. Fig. 4 shows the connection between the side sill 35 and the side wall of the pillar 31.

Referring to fig. 4 and 6, the lower insertion blocks 38 are respectively arranged at the two ends of the lower cross beam 34 and the lower longitudinal beam 35, and the lower insertion slots 39 for the insertion of the lower insertion blocks 38 are formed in the side wall of the bottom of the upright column 31, so that the upright column is detachably connected with the lower cross beam 34 and the lower longitudinal beam 35, and the personnel can assemble the upright column on site conveniently.

Referring to fig. 5 and 6, in order to improve the stability of the supporting steel frame 3, a cavity 8 is arranged in the column 31, the cavity 8 is respectively communicated with the upper slot 37 and the lower slot 39, L-shaped abutting plates 9 are arranged in the cavity 8 and relatively slide along the height direction of the cavity, the opposite side walls of the two L-shaped abutting plates 9 are respectively and fixedly provided with a first serrated plate 10, the opposite side walls of the upper insert block 36 and the lower insert block 38 are respectively provided with a second serrated plate 11, the first serrated plate 10 and the second serrated plate 11 are mutually engaged, and an adjusting assembly 12 for driving the two L-shaped abutting plates 9 to be close to or away from each other is arranged in the cavity 8.

The two L-shaped support plates 9 are driven to be away from each other by the adjusting assembly 12, the two second serrated plates 11 are driven to be away from each other, the second serrated plates 11 are enabled to approach the first serrated plates 10 until the second serrated plates 11 are meshed with the first serrated plates 10, the upper insertion block 36 can be fixed in the upper insertion groove 37, the lower insertion block 38 is fixed in the lower insertion groove 39, and the upright column 31 is respectively fixedly connected with the upper cross beam 32, the upper longitudinal beam 33, the lower cross beam 34 and the lower longitudinal beam 35.

Referring to fig. 4 and 7, the adjusting assembly 12 includes two abutting blocks 123 disposed in the cavity 8 in a sliding manner, an upper support rod 124 and a lower support rod 125 disposed on opposite side walls of the two linkage blocks 121, respectively, a linkage block 121 disposed between the two abutting blocks 123, and an adjusting rod 122 connected to the linkage block 121, ends of the upper support rod 124 and the lower support rod 125 far away from the abutting blocks 123 are respectively connected to opposite side walls of the two L-shaped abutting plates 9, axial directions of the upper support rod 124 and the lower support rod 125 are in the same direction as an axial direction of the upright column 31, the axial direction of the adjusting rod 122 is perpendicular to the axial direction of the upright column 31, and one end of the adjusting rod 122 far away from the linkage block 121 extends out of the side wall of the upright.

The inner wall of the cavity 8 is provided with a guide groove 14 along the height direction of the upright column 31, the side walls of the two abutting blocks 123 are provided with guide blocks 15 sliding in the guide grooves 14, and the arrangement of the guide blocks 15 and the guide grooves 14 plays a role in limiting and guiding the sliding of the abutting blocks 123.

Two side walls of the linkage block 121 and opposite side walls of the two abutting blocks 123 are respectively provided with a guide inclined plane 126 which are matched with each other in a sliding manner, the higher end of the guide inclined plane 126 faces the adjusting rod 122, and the abutting end of the guide inclined plane 126 faces the inner wall of the cavity 8; during adjustment, the adjusting rod 122 is pushed to slide the linkage block 121 to a position between the two abutting blocks 123, so that the higher end of the guide inclined plane 126 is gradually close to the abutting blocks 123, and the two abutting blocks 123 are driven to be away from each other, and the two L-shaped abutting plates 9 are driven to be away from each other; conversely, the adjusting rod 122 is pulled, so that the linkage block 121 moves out from between the two abutting blocks 123, meanwhile, the higher end of the guide inclined plane 126 gradually moves away from the abutting blocks 123, at this time, the two abutting blocks 123 approach each other, and further, the two L-shaped abutting plates 9 approach each other; the adjusting mode is simple in structure and convenient to operate.

In this embodiment, the length of the upper support rod 124 is greater than the length of the lower support rod 125, so that the adjustment rod 122 is disposed at a lower position on the sidewall of the upright 31, which is convenient for a person to push and pull the adjustment rod 122.

Referring to fig. 7, in order to avoid the operator from touching the adjusting lever 122 by mistake, the sidewall of the upright column 31 is provided with a locking member 13 for fixing the adjusting lever 122, the locking member 13 includes a nut 131 rotatably connected to the sidewall of the upright column 31 and a thread 132 arranged on the sidewall of the adjusting lever 122, the nut 131 is connected to the thread 132 of the adjusting lever 122, the sidewall of the linkage block 121 on the guiding inclined plane 126 is provided with a T-shaped block 133, the sidewall of the abutting block 123 on the guiding inclined plane 126 is provided with a T-shaped groove 134, and the inclined direction of the T-shaped groove 134 is the same as the inclined direction.

T type piece 133 and T type groove 134's setting, realized linkage piece 121 and the connection of sliding of piece 123 that supports, play spacing and guide effect to the sliding of linkage piece 121, because adjust pole 122 and nut 131 threaded connection, rotate nut 131, and then drive and adjust pole 122 and slide, so that promote linkage piece 121 and slide, and adjust pole 122 and nut 131 threaded connection, self-locking function has, and then can fix linkage piece 121 in suitable position, avoid personnel's mistake to touch regulation pole 122, this locking mode, moreover, the steam generator is simple in structure, and convenient operation.

The implementation principle of the independent negative pressure exhaust dust removal device in the embodiment of the application is as follows: firstly, selecting a supporting steel frame 3 and a dust baffle plate 4 with corresponding specifications according to an equipment body 2; then insert last inserted block 36 in the slot 37, insert down in the slot 39 for lower inserted block 38, can assemble supporting steelframe 3, in the process of assembling, insert connecting block 72 on the dust board 4 lateral wall in spread groove 73, make two magnetic seal pad 71 closely laminate, and then can fix dust board 4 on supporting steelframe 3, can assemble into the dust hood with dust board 4 and supporting steelframe 3 finally, then establish the dust hood cover on equipment body 2, make and form independent space around equipment body 2.

When the equipment body 2 works, the fan 1003 is started, negative pressure is formed in the dust hood through the exhaust pipe 1002 and the dust hood 1001, and then dust and harmful gas generated during machining of the equipment body 2 can be extracted, so that the dust and the harmful gas are collected and treated in a centralized mode, independent dust removal of the equipment body 2 is achieved, energy is saved, and dust removal efficiency is high.

When personnel need overhaul equipment body 2 and maintain, personnel are close to sealing door 5, and sealing door 5 is automatic to be opened, and automatically controlled valve 18 is opened simultaneously, utilizes exhaust pipe 1002, aspiration channel 172 and loudspeaker cover 171, can in time extract the air of 6 departments of access hole for 6 departments of access hole form the negative pressure, and then can effectually avoid dust and harmful gas to permeate the air through access hole 6, the effectual dust collection efficiency that has improved.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.

Claims

1. The utility model provides an independent negative pressure exhaust dust collector, includes equipment body (2) and is used for the dust extraction mechanism (1) of dust removal, dust extraction mechanism (1) is including suction hood (1001), exhaust pipe (1002) and fan (1003), its characterized in that: also comprises a supporting steel frame (3), a plurality of dust baffles (4) arranged on the side wall of the supporting steel frame (3) and a sealing door (5) arranged on the side wall of one dust baffle (4) in a sliding way, the side wall of the dust guard plate (4) positioned on the sealing door (5) is provided with an access hole (6), the supporting steel frame (3) is provided with a connecting component (7) for fixing the dust baffle plate (4), the supporting steel frame (3) and a plurality of dust baffles (4) are combined to form a dust hood for covering the equipment body (2), the dust hood (1001) is arranged on the inner wall of the dust hood and is positioned above the equipment body (2), the dust hood is characterized in that the fan (1003) is arranged on the top wall of the dust hood, one end of the exhaust pipe (1002) penetrates through the top wall of the dust hood and is connected with the dust hood (1001), and the other end of the exhaust pipe (1002) is connected with the fan (1003).

2. A self-contained negative pressure exhaust dust removal device according to claim 1, wherein: the supporting steel frame (3) comprises two columns (31) arranged in parallel, two upper cross beams (32) arranged oppositely, two upper longitudinal beams (33) arranged oppositely, two lower cross beams (34) arranged oppositely and two lower longitudinal beams (35) arranged oppositely, wherein the two ends of each of the upper cross beam (32) and the upper longitudinal beam (33) are respectively provided with an upper insert block (36), the top side wall of each column (31) is provided with an upper insert slot (37) for the upper insert block (36) to insert, the two ends of each of the lower cross beam (34) and the lower longitudinal beam (35) are respectively provided with a lower insert block (38), the bottom side wall of each column (31) is provided with a lower insert slot (39) for the lower insert block (38) to insert, the maintenance opening (6) is penetrated through the lower surface of the dust blocking plate (4), the side wall of one of the lower longitudinal beam (35) is provided with a feeding opening (21) communicated with the maintenance opening (6), and the feeding opening (21) is respectively communicated with the upper longitudinal beams, The lower surface and the two side walls penetrate through the sealing door (5), and the bottom of the sealing door extends into the feeding port (21).

3. A self-contained negative pressure exhaust dust removal device according to claim 2, wherein: coupling assembling (7) are including magnetic seal pad (71) and connecting block (72), keep off dirt board (4) and adopt PTFE stretch-draw membrane preparation shaping, connecting block (72) welds the peripheral wall of setting in keep off dirt board (4) respectively, the lateral wall of entablature (32), last longeron (33), bottom end rail (34) and longeron (35) down all is equipped with and supplies connecting block (72) male spread groove (73), magnetic seal pad (71) respectively adhesive fixation is at the cell wall of spread groove (73), the outer wall of connecting block (72), two magnetic seal pad (71) laminates each other.

4. A self-contained negative pressure exhaust dust removal device according to claim 2, wherein: be equipped with cavity (8) in stand (31), cavity (8) are linked together with last slot (37), lower slot (39) respectively, cavity (8) internal slipping is equipped with two relative L types and supports board (9), two the back of the body lateral wall that L type supported board (9) all is equipped with first serration plate (10), the relative lateral wall that goes up inserted block (36) and inserted block (38) down all is equipped with second serration plate (11), first serration plate (10) and second serration plate (11) intermeshing, be equipped with adjusting part (12) that two L types of drive supported board (9) are close to each other or keep away from each other in cavity (8).

5. A self-contained negative pressure exhaust dust removal device according to claim 4, wherein: the adjusting assembly (12) comprises a linkage block (121), an adjusting rod (122) connected with the linkage block (121), two abutting blocks (123) arranged on the inner wall of the cavity (8) in a sliding mode, and an upper supporting rod (124) and a lower supporting rod (125) which are arranged on the opposite side walls of the two abutting blocks (123) respectively, wherein the ends, far away from the abutting blocks (123), of the upper supporting rod (124) and the lower supporting rod (125) are connected with the two L-shaped abutting plates (9) respectively, the linkage block (121) is located between the two abutting blocks (123), guide inclined planes (126) in mutual sliding fit are arranged on the two side walls of the linkage block (121) and the opposite side walls of the two abutting blocks (123), the lower end of each guide inclined plane (126) faces the inner wall of the cavity (8), the higher end of each guide inclined plane (126) faces the adjusting rod (122), and the end, far away from the linkage block (121), of the adjusting rod (122) extends out of the side wall of the upright, the side wall of the upright post (31) is provided with a locking piece (13) for fixing the adjusting rod (122).

6. A self-contained negative pressure exhaust dust removal device according to claim 5, wherein: retaining member (13) are including rotating nut (131) that set up on stand (31) lateral wall and set up screw thread (132) on adjusting pole (122) lateral wall, nut (131) are connected with adjusting pole (122) screw thread (132), the lateral wall that linkage block (121) are located direction inclined plane (126) is equipped with T type piece (133), it is equipped with T type groove (134) just to follow the incline direction of direction inclined plane (126) and to support the lateral wall that piece (123) are located direction inclined plane (126).

7. A self-contained negative pressure exhaust dust removal device according to claim 5, wherein: the inner wall of the cavity (8) is provided with a guide groove (14) along the height direction of the upright column (31), the side wall of the two abutting blocks (123) is provided with a guide block (15) which slides in the guide groove (14), and the length of the upper supporting rod (124) is larger than that of the lower supporting rod (125).

8. A self-contained negative pressure exhaust dust removal device according to claim 1, wherein: the inner wall that keeps off dirt board (4) and be located access hole (6) is equipped with extension board (16), the lower surface of extension board (16) is equipped with the piece (17) that induced drafts that is used for extracting access hole (6) department air, induced draft piece (17) including install a plurality of loudspeaker covers (171) at extension board (16) lower surface, aspiration channel (172) that link to each other with loudspeaker cover (171) and multi-pass tube (173) that are linked together with aspiration channel (172), it is a plurality of one end that loudspeaker cover (171) were kept away from in aspiration channel (172) links to each other with multi-pass tube (173).

9. A self-contained negative pressure exhaust dust removal device according to claim 8, wherein: the sealing door (5) is an automatic induction door, an induction detector is arranged in the sealing door (5), an electric control valve (18) is arranged in the air suction pipe (172), and the electric control valve (18) is electrically connected with the induction detector.

10. A self-contained negative pressure exhaust dust removal device according to claim 1, wherein: and an air supply pipe (19) for conveying fresh air into the dust shield is arranged on the side wall of one of the dust baffles (4), and one end of the air supply pipe (19) penetrates through the side wall of the dust baffle (4) and is connected with a square air diffuser (20).