Environment-friendly dust removal device for painting workshop

Abstract

The invention relates to an environment-friendly dust removal device for a spraying workshop, and relates to the technical field of spraying workshop dust removal, the environment-friendly dust removal device comprises a front separator, the front separator is installed between the spraying workshop and a negative pressure dust remover, the front separator comprises a water pump driver, and the bottom of the water pump driver is fixedly connected with a water spraying dust collection cover for filtering dust and a gas-dust separator; dust particles are separated from air flow, pre-stage treatment is carried out, the treatment effect of the equipment is improved, and a dust removal water tank for collecting dust is fixed to the bottom of the air-dust separator; the air flow enters the inner side of the volute and pushes the turbine on the inner side of the volute to rotate, the turbine drives the driving gear to rotate, the middle gear is meshed with the driving gear and the driven gear, the driven gear drives the shaft rod to rotate, the water supply pump on the inner side of the water supply driver is driven through transmission connection of the shaft rod, and power is provided for the water supply driver. Potential energy of the gas is converted into mechanical energy, so that energy consumption during use of the equipment is reduced, and the use cost is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of dust removal in spray painting workshops, and in particular to an environmentally friendly dust removal device for spray painting workshops. Background Art

[0002] A large amount of dust and fine particles will be generated during the spraying process. If these pollutants are suspended in the air for a long time and inhaled by workers, it may cause respiratory diseases, lung diseases or even more serious health problems. The dust particles in the air may adhere to the surface of the workpiece being sprayed, resulting in uneven coating, rough surface, defects and other quality problems. Therefore, the spray workshop needs to clear the dust airflow in the workshop when spraying the workpiece.

[0003] At present, most of the dust removal in the workshop adopts wet dust collector, which uses water or other liquids to contact with dust-containing gas so that the dust is captured by the liquid. This dust collector will produce a lot of wastewater and needs to be coordinated with negative pressure suction equipment to make the airflow inside the workshop enter the water or other gas. If the spray system is used again, an additional power source is required to power the water pump. The water pump sends water to the spray head. The water mist sprayed by the spray head aggregates the particles after contacting with the airflow. If the power source is added again, the consumption of electric energy will increase, resulting in rising costs. There is also a bag dust collector that captures dust particles by filtering the bag. This dust collector needs to replace the bag regularly, and with the increase of use time, the effect will decrease, resulting in reduced dust removal effect in the workshop. Summary of the invention

[0004] Technical issues to be solved

[0005] The purpose of the present invention is to overcome the deficiencies of the prior art, meet actual needs, and provide an environmentally friendly dust removal device for a spraying workshop to solve the above-mentioned technical problems.

[0006] Technical Solution

[0007] In order to achieve the purpose of the present invention, the technical solution adopted by the present invention is:

[0008] An environmentally friendly dust removal device for a spray painting workshop comprises a pre-separator, which is installed between the spray painting workshop and a negative pressure dust collector. The pre-separator comprises a water pump driver, and a water spray dust collecting cover and an air-dust separator for filtering dust are fixedly connected to the bottom of the water pump driver, so that dust particles are separated from the airflow, and pre-processing is performed to improve the processing effect of the device. A dust removal water tank for collecting dust is fixed to the bottom of the air-dust separator, and the airflow is filtered multiple times in cooperation with the water spray dust collecting cover and the air-dust separator, so as to further improve the dust removal effect. A water supply driver for supplying water to the water spray dust collecting cover is fixedly connected to the side of the dust removal water tank, and the water supply driver is in driving connection with the water pump driver, and the potential energy of the airflow is converted into mechanical energy through the water pump driver, so as to provide power to the water supply driver, and reduce energy consumption.

[0009] The water pump driver includes a volute, an extension frame is welded on the side of the volute away from the collecting cover, and the extension frame is movably connected with an intermediate gear and a driven gear, the intermediate gear and the driven gear are meshed with each other, and through the mutual meshing between the intermediate gear and the driven gear, a shaft rod penetrating the extension frame is provided at the bottom of the driven gear, so that the driven gear drives the shaft rod to rotate to transmit power.

[0010] As a further technical solution of the present invention, a turbine is provided on the inner side of the volute, and the end of the central axis of the turbine passes through the volute and is fixedly connected to the driving gear on the side of the volute, the driving gear and the intermediate gear are meshed with each other on the side away from the driven gear, the airflow enters from the side of the turbine, and the airflow needs to pass through the volute to enter the water spray dust collecting cover, so when the airflow flows in the volute, it will drive the turbine to rotate, the turbine drives the driving gear to rotate, converting potential energy into mechanical energy, and using the airflow to drive the shaft to rotate, there is no need to use additional energy to supply the power source, thereby reducing the energy consumption of the equipment and thus reducing the cost of use.

[0011] As a further technical solution of the present invention, the air inlet end of the volute side is fixedly connected to the collecting cover, and the volute is connected to the inner side of the spraying workshop through the collecting cover, the air flow enters the volute through the collecting cover, the protective covers are respectively located on the outside of the driving gear, the intermediate gear and the driven gear, and the protective cover is fixedly connected to the extension frame to protect the driving gear, the intermediate gear and the driven gear and extend their service life, and the end of the shaft is movably connected to the extension frame through a bearing.

[0012] As a further technical solution of the present invention, a negative pressure dust collector extracts the airflow inside the spray workshop. The airflow inside the spray workshop passes through a collecting cover and enters the volute. The airflow enters from the side of the volute, pushing the turbine inside the volute to rotate. The turbine drives the driving gear to rotate, converting the potential energy of the airflow into mechanical energy. After the power is transmitted through the intermediate gear, it drives the driven gear to rotate, and finally provides power to the water supply driver through the shaft. There is no need to use an additional power source for supply, thereby saving energy and reducing the cost of use.

[0013] As a further technical solution of the present invention, the water spray dust collecting cover includes a conical connecting cover, in which an atomizing spray head is fixedly connected in a ring array, and a water mist layer is formed on the inner side of the conical connecting cover through multiple arranged atomizing spray heads. After the air flow passes through the water mist layer, the water mist can gather the dust in the air flow and increase the particle diameter of the dust. After the diameter of the dust particles increases, they fall downward, thereby improving the separation effect of air and dust, and the end of the atomizing spray head passes through the conical connecting cover and extends to the inner side of the conical connecting cover, and each end of the atomizing spray head is fixedly connected to a connecting elbow to supply the water source.

[0014] As a further technical solution of the present invention, each of the connecting elbows is fixedly connected to a three-way connector at one end away from the atomizing spray head, and a plurality of three-way connectors are provided. An arc-shaped water supply pipe is fixedly connected between two adjacent three-way connectors to supply water to the multiple atomizing spray heads. The outlet end of the volute is fixedly connected to the top of the conical connecting cover.

[0015] As a further technical solution of the present invention, the water source is delivered into a plurality of set connecting elbows through the cooperation of a three-way connector and an arc-shaped water supply pipe, and then delivered into an atomizing spray head through the connecting elbows. The atomizing spray head atomizes the water source and sprays it in the conical connecting cover, forming a water mist layer on the inner side of the conical connecting cover. The airflow enters the inner side of the conical connecting cover from the volute. When the airflow passes through the water mist layer on the inner side of the conical connecting cover, the water mist layer can gather dust particles in the airflow together to increase the diameter of the dust particles. After the diameter of the dust particles increases, they fall downward into the gas-dust separator, and the airflow is filtered and separated for the first time by the water mist layer in the conical connecting cover.

[0016] As a further technical solution of the present invention, the gas-dust separator includes a guide pipe fixedly connected to the bottom inner side of the conical connecting cover, the other end of the guide pipe passes through the dust removal water tank and extends to the inner side of the dust removal water tank to guide the airflow, and the guide pipe is fixedly connected to the side of the dust removal water tank.

[0017] As a further technical solution of the present invention, the inner top of the guide pipe is spirally welded with a spiral guide blade, and the spiral guide blade is provided with a connecting air hole. The gathered dust particles fall onto the spiral guide blade. As the diameter of the dust particles increases, the connecting air hole can filter the dust particles, and the air flow continues to flow through the inner side of the connecting air hole, while the gathered dust particles roll along the surface of the spiral guide blade. A dust filtering water source is stored on the inner side of the dust removal water tank, and the spiral guide blade is located above the dust filtering water source. The bottom of the guide pipe extends into the dust filtering water source. The spiral guide blade and the connecting air hole can separate the air flow and dust particles again, and cooperate with the first filtration of the air flow and dust to increase the dust filtering effect of the equipment.

[0018] As a further technical solution of the present invention, an air intake elbow is welded to the end of the dust removal water tank, one end of the air intake elbow is connected to the inner top of the dust removal water tank, and the other end of the air intake elbow is fixedly connected to the inlet of the negative pressure dust collector. The filtered airflow enters the water source inside the dust removal water tank through the guide pipe, the dust in the airflow is fully in contact with the water source, the airflow flows out from the water source, and finally enters the negative pressure dust collector through the air intake elbow.

[0019] As a further technical solution of the present invention, the airflow passes through the conical connecting cover and enters the guide pipe. The dust particles with increased diameter fall on the spiral guide blades and roll along the surface of the spiral guide blades. The airflow directly passes through the connecting air holes and flows downward to separate the airflow and the dust again. After the atomized water source falls on the spiral guide blades, part of the water source flows through the connecting air holes, and part of the water source pushes the dust particles to flow along the spiral guide blades. After the airflow passes through the connecting air holes, the airflow is introduced into the water source inside the dust removal water tank through the guide pipe. The airflow passes through the water source, and the water source fully contacts the dust in the airflow to separate the airflow and the dust again. The separated airflow enters the negative pressure dust collector through the suction bend. The multi-stage filtration of the airflow is used to improve the filtering effect of the equipment on the airflow.

[0020] As a further technical solution of the present invention, the water supply driver includes a U-shaped bracket, which is fixedly connected to a side of the dust removal water tank away from the spraying workshop. A water supply pump is fixedly connected to the U-shaped bracket, and the water supply pump is fixed to the side of the dust removal water tank through the U-shaped bracket. The inlet of the water supply pump is connected to the inner bottom of the dust removal water tank through a water inlet pipe, and the inlet of the water supply pump is connected to a water spray dust collecting cover through a water outlet pipe, so that the water source inside the dust removal water tank is sent into the water spray dust collecting cover.

[0021] As a further technical solution of the present invention, the end of the water outlet pipe is fixedly connected to the side of any one of the three-way connectors, and the three-way connector on the other side of the connection between the three-way connector and the water outlet pipe is fixed with a sealing end cover, and the water source is sent into the multiple three-way connectors through the water outlet pipe. The end of the shaft rod away from the driven gear is connected to the output shaft of the water supply pump through a coupling, and the water supply driver is powered by the water pump driver, which saves energy.

[0022] (3) Beneficial effects:

[0023] A. In the present invention, first, the negative pressure generated by the negative pressure dust collector sucks the dusty gas inside the spraying workshop into the volute through the collection cover, and the airflow moves quickly inside the volute, driving the turbine inside the volute to rotate, and the turbine drives the driving gear to rotate. Since the intermediate gear is respectively meshed with the driving gear and the driven gear, the driving gear drives the shaft to rotate after the power is transmitted through the intermediate gear, and the water supply pump inside the water supply driver is driven through the transmission connection of the shaft. The water supply pump sucks out the filtered water source through the water inlet pipe, and then sends the water source into the water spray dust collecting cover through the water outlet pipe, providing power to the water supply driver, converting the potential energy of the gas into mechanical energy, reducing the energy consumption when the equipment is used, thereby reducing the use cost;

[0024] B. In the present invention, the water supply pump delivers the water source inside the dust removal water tank to the inner side of the three-way connector through the water outlet pipe. The three-way connector and the arc-shaped water supply pipe cooperate with each other to deliver the water source to the connecting elbow and the atomizing spray head. The inclined atomizing spray head atomizes the water source and sprays it in the conical connecting cover. After the airflow passes through the volute, it enters the inner side of the conical connecting cover from top to bottom. The airflow is combined with the water mist, and the water mist can gather the dust in the airflow, so that the dust is separated from the airflow, and the airflow is subjected to the first dust removal treatment, thereby increasing the dust treatment effect of the equipment;

[0025] C. In the present invention, the airflow flows toward the bottom on the inner side of the guide tube, and the gathered dust falls on the spiral guide blades in the guide tube. The communicating air holes in the spiral guide blades can quickly separate the airflow and the dust. The airflow flows toward the bottom through the communicating air holes, and the gathered dust rolls along the surface of the spiral guide blades, so that the gathered dust moves toward the inner side of the dust removal water tank. At the same time, the excess water source sprayed by the atomizing spray head falls on the spiral guide blades and flows along the surface of the spiral guide blades, pushing the gathered dust to move, preventing the dust from being blocked in the communicating air holes, and performing a second filtration and separation on the airflow.

[0026] D. In the present invention, since the bottom of the guide pipe extends to the water source inside the dust removal water tank, the airflow in the guide pipe passes downward through the water source inside the dust removal water tank and is discharged from the suction elbow. After the airflow passes through the water source inside the dust removal water tank, the dust in the airflow is fully mixed with the water source, so that the internal dust and the airflow can be fully separated, and the airflow is filtered for the third time, thereby further improving the dust removal effect of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0028] Figure 2 For the present invention Figure 1 Another perspective of the picture;

[0029] Figure 3 For the present invention Figure 1 Right view of;

[0030] Figure 4 For the present invention Figure 1 Schematic diagram of some structures;

[0031] Figure 5 For the present invention Figure 4 A partial enlarged schematic diagram of

[0032] Figure 6 For the present invention Figure 4 A partial enlarged schematic diagram of

[0033] Figure 7 For the present invention Figure 4 Schematic diagram of some structures;

[0034] Figure 8 For the present invention Figure 7 A top view of

[0035] Fig. 9 For the present invention Figure 8 CC section view;

[0036] Fig.10 It is a schematic diagram of the three-dimensional structure of the gas-dust separator in the present invention;

[0037] Fig.11 For the present invention Fig.10 A partial enlarged schematic diagram of

[0038] Fig.12 It is a schematic diagram of the three-dimensional structure of the water spray dust collecting cover in the present invention;

[0039] Fig.13 For the present invention Fig.12 Another perspective of the picture;

[0040] Fig.14It is a schematic diagram of the connection structure between the water pump driver and the water supply driver in the present invention;

[0041] Fig.15 For the present invention Fig.14 Another perspective of the picture.

[0042] In the figure: spraying workshop-1, box door slide rail-2, sliding workshop door-3, collecting hood-4, water pump driver-5, volute-51, extension frame-52, driving gear-53, intermediate gear-54, driven gear-55, shaft-56, protective cover-6, water spray dust collecting cover-7, conical connecting cover-71, atomizing spray head-72, connecting elbow-73, three-way connector-74, arc water supply pipe-75, gas-dust separator-8, guide pipe-81, spiral guide blade-82, connecting air hole-83, dust removal water tank-9, suction elbow-91, negative pressure dust collector-10, water supply driver-11, U-shaped bracket-111, water supply pump-112, water inlet pipe-113, water outlet pipe-114. DETAILED DESCRIPTION

[0043] See also Figure 1-5 , an environmentally friendly dust removal device for a spray painting workshop, comprising a pre-separator, the pre-separator being installed between the spray painting workshop 1 and the negative pressure dust collector 10, the pre-separator comprising a water pump driver 5, the bottom of the water pump driver 5 being fixedly connected with a water spray dust collecting cover 7 and an air-dust separator 8 for filtering dust, separating dust particles from an airflow, performing pre-stage treatment, and improving the treatment effect of the device, the bottom of the air-dust separator 8 being fixed with a dust removal water tank 9 for collecting dust, cooperating with the water spray dust collecting cover 7 and the air-dust separator 8 to filter the airflow multiple times, further improving the dust removal effect, the side of the dust removal water tank 9 being fixedly connected with a water supply driver 11 for supplying water to the water spray dust collecting cover 7, and the water supply driver 11 being transmission-connected with the water pump driver 5, the potential energy of the airflow being converted into mechanical energy through the water pump driver 5, providing power to the water supply driver 11, and reducing energy consumption;

[0044] The water pump driver 5 includes a volute 51, and an extension frame 52 is welded on the side of the volute 51 away from the collecting cover 4, and an intermediate gear 54 and a driven gear 55 are movably connected to the extension frame 52, respectively. The intermediate gear 54 and the driven gear 55 are meshed with each other. Through the mutual meshing between the intermediate gear 54 and the driven gear 55, a shaft rod 56 that passes through the extension frame 52 is provided at the bottom of the driven gear 55, so that the driven gear 55 drives the shaft rod 56 to rotate, thereby transmitting power.

[0045] Furthermore, a turbine is provided on the inner side of the volute 51, and the end of the central axis of the turbine passes through the volute 51 and is fixedly connected to the driving gear 53 on the side of the volute 51. The driving gear 53 and the intermediate gear 54 are meshed with each other on the side away from the driven gear 55. The airflow enters from the side of the turbine, and the airflow needs to pass through the volute 51 to enter the water spray dust collecting cover 7. Therefore, when the airflow flows in the volute 51, it will drive the turbine to rotate, and the turbine drives the driving gear 53 to rotate, converting potential energy into mechanical energy, and using the airflow to drive the shaft 56 to rotate. There is no need to use additional energy to supply the power source, thereby reducing the energy consumption of the equipment and thus reducing the cost of use.

[0046] Furthermore, the air inlet end on the side of the volute 51 is fixedly connected to the collecting hood 4, and the volute 51 is connected to the inner side of the spraying workshop 1 through the collecting hood 4, and the air flow enters the volute 51 through the collecting hood 4. The protective cover 6 is respectively located on the outside of the driving gear 53, the intermediate gear 54 and the driven gear 55, and the protective cover 6 is fixedly connected to the extension frame 52 to protect the driving gear 53, the intermediate gear 54 and the driven gear 55 to extend their service life. The end of the shaft 56 is movably connected to the extension frame 52 through a bearing.

[0047] By adopting the above technical solution, the negative pressure dust collector 10 extracts the airflow inside the spray workshop 1, and the airflow inside the spray workshop 1 enters the volute 51 through the collecting hood 4. The airflow enters from the side of the volute 51, pushing the turbine inside the volute 51 to rotate, and the turbine drives the driving gear 53 to rotate, converting the potential energy of the airflow into mechanical energy. After the power is transmitted by the intermediate gear 54, it drives the driven gear 55 to rotate, and finally provides power drive to the water supply driver 11 through the shaft 56. There is no need to use an additional power source for supply, thereby saving energy and reducing the cost of use.

[0048] In this embodiment, please refer to Figure 6-8 , Figure 12-13 The water spray dust collecting cover 7 includes a conical connecting cover 71, in which atomizing spray heads 72 are fixedly connected in a circular array. A water mist layer is formed on the inner side of the conical connecting cover 71 through a plurality of arranged atomizing spray heads 72. After the airflow passes through the water mist layer, the water mist can gather the dust in the airflow and increase the particle diameter of the dust. After the diameter of the dust particles increases, they fall downward, thereby improving the separation effect of gas and dust. The end of the atomizing spray head 72 passes through the conical connecting cover 71 and extends to the inner side of the conical connecting cover 71. The end of each atomizing spray head 72 is fixedly connected to a connecting elbow 73 to supply the water source.

[0049] Furthermore, each of the connecting elbows 73 is fixedly connected to a three-way connector 74 at one end away from the atomizing spray head 72. A plurality of three-way connectors 74 are provided, and an arc-shaped water supply pipe 75 is fixedly connected between two adjacent three-way connectors 74 to supply water to the multiple atomizing spray heads 72. The outlet end of the volute 51 is fixedly connected to the top of the conical connecting cover 71.

[0050] By adopting the above technical scheme, the water source is sent into a plurality of set connecting elbows 73 through the cooperation of the three-way connector 74 and the arc-shaped water supply pipe 75, and then sent into the atomizing spray head 72 through the connecting elbows 73. The atomizing spray head 72 atomizes the water source and sprays it in the conical connecting cover 71, forming a water mist layer on the inner side of the conical connecting cover 71. The airflow enters the inner side of the conical connecting cover 71 from the volute 51. When the airflow passes through the water mist layer on the inner side of the conical connecting cover 71, the water mist layer can gather the dust particles in the airflow together to increase the diameter of the dust particles. After the diameter of the dust particles increases, they fall downward into the gas-dust separator 8, and the airflow is filtered and separated for the first time by the water mist layer in the conical connecting cover 71.

[0051] In this embodiment, please refer to Figure 9-11 The gas-dust separator 8 includes a guide pipe 81 fixedly connected to the bottom inner side of the conical connecting cover 71. The other end of the guide pipe 81 passes through the dust removal water tank 9 and extends to the inner side of the dust removal water tank 9 to guide the airflow. The guide pipe 81 is fixedly connected to the side of the dust removal water tank 9.

[0052] Furthermore, the inner top of the guide pipe 81 is spirally welded with a spiral guide blade 82, and the spiral guide blade 82 is provided with a connecting air hole 83. The gathered dust particles fall onto the spiral guide blade 82. Due to the increase in the diameter of the dust particles, the connecting air hole 83 can filter the dust particles, and the air flow continues to flow through the inner side of the connecting air hole 83, while the gathered dust particles roll along the surface of the spiral guide blade 82. A dust filtering water source is stored on the inner side of the dust removal water tank 9, and the spiral guide blade 82 is located above the dust filtering water source. The bottom of the guide pipe 81 extends into the dust filtering water source. The spiral guide blade 82 and the connecting air hole 83 can separate the air flow and dust particles again, and cooperate with the first filtration of the air flow and dust to increase the dust filtering effect of the equipment.

[0053] Furthermore, an air intake elbow 91 is welded to the end of the dust removal water tank 9, one end of the air intake elbow 91 is connected to the inner top of the dust removal water tank 9, and the other end of the air intake elbow 91 is fixedly connected to the inlet of the negative pressure dust collector 10. The filtered airflow enters the water source inside the dust removal water tank 9 through the guide pipe 81, the dust in the airflow is fully in contact with the water source, the airflow flows out from the water source, and finally enters the negative pressure dust collector 10 through the air intake elbow 91.

[0054] By adopting the above technical scheme, the airflow passes through the conical connecting cover 71 and enters the guide pipe 81. The dust particles with increased diameter fall on the spiral guide blades 82 and roll along the surface of the spiral guide blades 82. The airflow directly passes through the connecting air holes 83 and flows downward to separate the airflow and the dust again. After the atomized water source falls on the spiral guide blades 82, part of the water source flows through the connecting air holes 83, and part of the water source pushes the dust particles to flow along the spiral guide blades 82. After the airflow passes through the connecting air holes 83, the airflow is introduced into the water source inside the dust removal water tank 9 through the guide pipe 81. The airflow passes through the water source, and the water source fully contacts the dust in the airflow, so the airflow and the dust are separated again. The separated airflow enters the negative pressure dust collector 10 through the suction bend 91. By multi-stage filtration of the airflow, the filtering effect of the equipment on the airflow is improved.

[0055] In this embodiment, please refer to Figure 14-15 The water supply driver 11 includes a U-shaped bracket 111, which is fixedly connected to the side of the dust removal water tank 9 away from the spraying workshop 1. A water supply pump 112 is fixedly connected to the U-shaped bracket 111. The water supply pump 112 is fixed to the side of the dust removal water tank 9 through the U-shaped bracket 111. The inlet of the water supply pump 112 is connected to the inner bottom of the dust removal water tank 9 through the water inlet pipe 113. The inlet of the water supply pump 112 is connected to the water spray dust collecting cover 7 through the water outlet pipe 114, so that the water source inside the dust removal water tank 9 is sent into the water spray dust collecting cover 7.

[0056] Furthermore, the end of the water outlet pipe 114 is fixedly connected to the side of any one of the three-way connectors 74, and the three-way connector 74 on the other side of the connection between the three-way connector 74 and the water outlet pipe 114 is fixed with a sealing end cover, and the water source is sent into the multiple three-way connectors 74 through the water outlet pipe 114. The end of the shaft 56 away from the driven gear 55 is connected to the output shaft of the water supply pump 112 through a coupling, and the water supply driver 11 is powered by the water pump driver 5, which plays an energy-saving role.

[0057] By adopting the above technical solution, through the mutual meshing between the intermediate gear 54 and the driven gear 55, the driven gear 55 drives the input shaft of the water supply pump 112 to rotate through the shaft 56, and cooperates with the water pump driver 5 to convert the potential energy of the airflow into mechanical energy to drive the water supply pump 112, without consuming energy again for supply, thereby reducing the energy consumption of the equipment.

[0058] Furthermore, the atomizing spray head 72 is tiltedly arranged on the inner side of the conical connecting cover 71, and the inner side of the conical connecting cover 71 is respectively connected to the inner side of the volute 51 and the guide pipe 81. Through the tilted arrangement of the atomizing spray head 72, the multiple atomizing spray heads 72 can spray water from multiple directions on the inner side of the conical connecting cover 71, so that a water mist layer is formed on the inner side of the conical connecting cover 71.

[0059] Furthermore, a dust filter is provided at the connection between the water inlet pipe 113 and the dust removal water tank 9. The dust filter is fixedly connected to the end of the water inlet pipe 113, and the dust filter is located on the inner side of the dust removal water tank 9 to filter the water source inside the dust removal water tank 9 to prevent dust particles in the water source from entering the inner side of the water supply pump 112.

[0060] Furthermore, both ends of the spraying workshop 1 are provided with entrance and exit doorways, and both sides of each of the entrance and exit doorways are provided with box door slide rails 2 fixed to the end of the spraying workshop 1 to limit the workshop door 3, and the two ends of the spraying workshop 1 are sealed by the workshop door 3. Every two box door slide rails 2 are arranged as a group, and sliding workshop doors 3 are symmetrically arranged between each group of box door slide rails 2, and the two ends of the sliding workshop doors 3 are slidably connected to the box door slide rails 2.

[0061] By adopting the above technical solution, the air flow passes through the inner side of the volute 51, driving the turbine in the volute 5 to rotate, and the turbine drives the driving gear 53 to rotate, and then through the meshing between the intermediate gear 54 and the driven gear 55, the power is transmitted to the shaft 56, and the shaft 56 drives the input shaft of the water supply pump 112 to rotate, and then cooperates with the water inlet pipe 113 and the water outlet pipe 114 to send the water source inside the dust removal water tank 9 into the atomizing spray head 72.

[0062] By adopting the above technical solution, the negative pressure dust collector 10 extracts the airflow inside the spray workshop 1, and the airflow enters the volute 51 through the collecting cover 4. The airflow passes through the inner side of the volute 51, driving the turbine inside the volute 51 to rotate, converting the potential energy of the airflow into mechanical energy. The turbine drives the driving gear 53 to rotate. Since the intermediate gear 54 is respectively meshed with the driving gear 53 and the driven gear 55, the power on the driving gear 53 is transmitted to the shaft 56, so that the shaft 56 drives the input shaft of the water supply pump 112 to rotate, and there is no need to use The water supply pump 112 draws out the water source in the dust removal water tank 9 through the water inlet pipe 113, and then sends the water source to the three-way connector 74 through the water outlet pipe 114. Through the cooperation between the three-way connector 74 and the arc-shaped water supply pipe 75, the water source is sent to a plurality of set connecting elbows 73, and finally the water source is atomized by the atomizing spray head 72 and sprayed in the conical connecting cover 71, forming a water mist layer on the inner side of the atomizing spray head 72, and the airflow passes through the inner side of the volute 51 and enters the conical connecting cover. 71, after the airflow contacts the water mist layer, the water mist can gather the powder in the airflow together, increase the diameter of the powder, and make the powder and the airflow undergo the first filtration separation. Then the airflow enters the guide pipe 81, and the airflow passes through the connecting air hole 83 on the spiral guide blade 82. The airflow is guided by the guide pipe 81 to introduce the airflow into the water source inside the dust removal water tank 9. After the airflow enters the water source, the dust in the airflow is mixed with the water source and then separated. The airflow passes through the water source and gathers at the top of the inner side of the dust removal water tank 9. Finally, the airflow enters the air tank 9 through the suction elbow 91. The inner side of the negative pressure dust collector 10, at the same time, the dust particles on the inner side of the conical connecting cover 71 fall onto the spiral guide blade 82, and move in a spiral shape along the surface of the spiral guide blade 82, so that the dust and the airflow are filtered and separated again, thereby improving the filtering effect of the equipment on the airflow, and finally cooperating with the water source filtration inside the dust removal water tank 9 to form a multi-stage filtration, and finally the airflow enters the negative pressure dust collector 10, thereby extending the maintenance period of the negative pressure dust collector 10, and cooperating with the negative pressure dust collector 10 to further improve the removal effect of the equipment on the dust particles in the airflow.

[0063] The embodiments of the present invention disclose preferred embodiments, but are not limited thereto. A person skilled in the art can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. However, as long as they do not deviate from the spirit of the present invention, they are all within the protection scope of the present invention.

Claims

1. An environmentally friendly dust removal device for a spraying workshop, characterized in that: The invention comprises a pre-separator, which is installed between a spraying workshop (1) and a negative pressure dust collector (10), and comprises a water pump driver (5). The bottom of the water pump driver (5) is fixedly connected with a water spray dust collecting cover (7) for filtering dust and a gas dust separator (8). The bottom of the gas dust separator (8) is fixedly connected with a dust removal water tank (9) for collecting dust. The side of the dust removal water tank (9) is fixedly connected with a water supply driver (11) for supplying water to the water spray dust collecting cover (7), and the water supply driver (11) is drivingly connected with the water pump driver (5). The water pump driver (5) comprises a volute (51), an extension frame (52) is welded to a side of the volute (51) away from the collecting cover (4), and an intermediate gear (54) and a driven gear (55) are movably connected to the extension frame (52), the intermediate gear (54) and the driven gear (55) are meshed with each other, and a shaft (56) penetrating the extension frame (52) is provided at the bottom of the driven gear (55).

2. The environmentally friendly dust removal device for a spray painting workshop as claimed in claim 1, characterized in that: A turbine is provided inside the volute (51), and the central axis end of the turbine passes through the volute (51) and is fixedly connected to a driving gear (53) on the side of the volute (51), and the driving gear (53) and the intermediate gear (54) are meshed with each other on the side away from the driven gear (55).

3. The environmentally friendly dust removal device for a spray painting workshop as claimed in claim 2 is characterized in that: The air inlet end of the volute (51) side is fixedly connected to the collecting cover (4), and the volute (51) is connected to the inner side of the spraying workshop (1) through the collecting cover (4). The protective cover (6) is respectively located on the outer side of the driving gear (53), the intermediate gear (54) and the driven gear (55), and the protective cover (6) is fixedly connected to the extension frame (52). The end of the shaft (56) is movably connected to the extension frame (52) through a bearing.

4. The environmentally friendly dust removal device for a spray painting workshop as claimed in claim 1, characterized in that: The water spray dust collecting cover (7) comprises a conical connection cover (71), in which atomizing spray heads (72) are fixedly connected in a circular array, and ends of the atomizing spray heads (72) penetrate the conical connection cover (71) and extend to the inner side of the conical connection cover (71), and each end of the atomizing spray heads (72) is fixedly connected to a connecting elbow (73).

5. The environmentally friendly dust removal device for a spray painting workshop as claimed in claim 4, characterized in that: One end of each connecting elbow (73) away from the atomizing spray head (72) is fixedly connected to a three-way connector (74), and a plurality of three-way connectors (74) are provided. An arc-shaped water supply pipe (75) is fixedly connected between two adjacent three-way connectors (74), and the outlet end of the volute (51) is fixedly connected to the top of the conical connecting cover (71).

6. The environmentally friendly dust removal device for a spray painting workshop as claimed in claim 1, characterized in that: The gas-dust separator (8) comprises a guide pipe (81) fixedly connected to the inner bottom of the conical connection cover (71); the other end of the guide pipe (81) passes through the dust removal water tank (9) and extends to the inner side of the dust removal water tank (9); the guide pipe (81) is fixedly connected to the side of the dust removal water tank (9).

7. The environmentally friendly dust removal device for a spray painting workshop as claimed in claim 6, characterized in that: The inner top of the guide pipe (81) is welded with a spiral guide blade (82) in a spiral shape, and a connecting air hole (83) is provided in the spiral guide blade (82). A dust filtering water source is stored on the inner side of the dust removal water tank (9), and the spiral guide blade (82) is located above the dust filtering water source. The bottom of the guide pipe (81) extends into the dust filtering water source.

8. The environmentally friendly dust removal device for a spray painting workshop as claimed in claim 7, characterized in that: An air intake elbow (91) is welded to the end of the dust removal water tank (9), one end of the air intake elbow (91) is connected to the inner top of the dust removal water tank (9), and the other end of the air intake elbow (91) is fixedly connected to the inlet of the negative pressure dust collector (10).

9. The environmentally friendly dust removal device for a spray painting workshop as claimed in claim 1, characterized in that: The water supply driver (11) comprises a U-shaped bracket (111), the U-shaped bracket (111) is fixedly connected to a side of the dust removal water tank (9) away from the spraying workshop (1), a water supply pump (112) is fixedly connected to the U-shaped bracket (111), the inlet of the water supply pump (112) is connected to the inner bottom of the dust removal water tank (9) through a water inlet pipe (113), and the inlet of the water supply pump (112) is connected to the water spray dust collecting cover (7) through a water outlet pipe (114).

10. The environmentally friendly dust removal device for a spray painting workshop as claimed in claim 9, characterized in that: The end of the water outlet pipe (114) is fixedly connected to the side of any one of the three-way connectors (74), and a sealing end cover is fixed to the three-way connector (74) on the other side of the connection between the three-way connector (74) and the water outlet pipe (114), and the end of the shaft (56) away from the driven gear (55) is connected to the output shaft of the water supply pump (112) through a coupling.

Images