CN214437928U

CN214437928U - Small-size injection apparatus

Info

Publication number: CN214437928U
Application number: CN202120392443.5U
Authority: CN
Inventors: 顾坚; 庞越鹏; 杨花安
Original assignee: Jiangsu Heimer Environmental Protection Technology Co Ltd
Current assignee: Jiangsu Heimer Environmental Protection Technology Co Ltd
Priority date: 2021-02-23
Filing date: 2021-02-23
Publication date: 2021-10-22
Anticipated expiration: 2031-02-23

Abstract

The application discloses small-size injection apparatus, injection apparatus includes: a venturi, the venturi comprising: one end of the air inlet section is provided with an air inlet for air to enter; one end of the diffusion section is provided with an air outlet for ejecting the materials carried by the air; the throat pipe section is communicated with the air inlet section and the diffusion section, and a feed inlet is formed in the joint of the throat pipe section and the air inlet section; the feeding assembly is communicated with the feeding hole and is used for feeding materials into the venturi; the fan is communicated with the air inlet and is used for independently providing air to the inner part of the venturi; the spray gun communicates the venturi the diffuser section, spray gun are provided with the discharge gate, and the spray gun is used for inserting furnace injection material. The small-size injection apparatus of this application corresponds through every venturi and provides the gas carrier by a fan, and the material subassembly input material is thrown to corresponding one to correspond a spray gun with the material blowout, can realize should throw the independent accurate control of material point in the furnace.

Description

Small-size injection apparatus

Technical Field

The application belongs to the technical field of flue gas treatment, concretely relates to small-size injection apparatus.

Background

The waste incineration power generation is an important means for reducing and harmlessly treating waste, and the mainstream position is increasingly prominent. Violent waste incineration reaction and product removal Thermal power generation, accompanied by the production of large quantities of harmful gases, such as Nitrogen Oxides (NO)_x) Sulfur dioxide (SO)₂) And dioxins.

However NO at different points of the waste incinerator_xThe content is very different and needs to be specific to NO_xThe amount of the denitration agent to be added is adjusted. And the traditional mode adopts high-pressure gas to carry, carries out pipeline reposition of redundant personnel respectively and carries every injection point again, and the different point location denitration agent input of waste incinerator is uncontrollable.

Disclosure of Invention

The application provides a small-size injection apparatus to solve the uncontrollable technical problem of waste incinerator different point location denitration agent input volume.

In order to solve the technical problem, the application adopts a technical scheme that: a compact spray device, the spray device comprising: a venturi, the venturi comprising: one end of the air inlet section is provided with an air inlet for air to enter; one end of the diffusion section is provided with an air outlet for ejecting the materials carried by the air; the throat pipe section is communicated with the air inlet section and the diffusion section, and a feed inlet is formed in the joint of the throat pipe section and the air inlet section; the feeding assembly is communicated with the feeding hole and is used for feeding materials into the venturi; the fan is communicated with the air inlet and is used for independently providing air to the inner part of the venturi; the spray gun, the intercommunication the venturi the diffuser section, the spray gun is provided with the discharge gate, just the spray gun is used for inserting furnace injection material.

According to an embodiment of the present application, the venturi further comprises: the regulating part, set up in the air inlet with between the feed inlet, the regulating part forms the blow vent that supplies gas to pass through, the size of blow vent is less than the size of discharge gate.

According to an embodiment of the application, the subassembly of throwing includes: the feeding pipeline comprises a feeding end and a discharging end which are arranged oppositely, and the discharging end is communicated with the feeding hole; the storage bin is communicated with the feeding end; the screw is rotatably arranged in the feeding pipeline; and the motor drives the screw to rotate.

According to an embodiment of the application, the feed bin with pipeline feeding end passes through the pan feeding pipe intercommunication, be provided with the control valve on the pan feeding pipe.

According to an embodiment of the application, the subassembly of throwing material still includes: the bin cover is hinged to the open end of the bin; a handle disposed on the bin cover; the observation window is arranged in the storage bin.

According to an embodiment of the application, the spray gun with the venturi passes through pipeline intercommunication, the spray gun with pipeline is fixed through connecing soon.

According to an embodiment of the application, the spray gun is provided with a wind pressure and wind speed monitor to monitor the wind pressure and the wind speed of the muzzle of spray gun.

According to an embodiment of the present application, the blower is a variable frequency blower, and the blower includes a compressor, a blower and a roots blower.

According to an embodiment of the application, the adjustment member comprises: the outer edge of the fixing ring is connected to the inner wall of the air inlet section; one end of each of the at least two hook-type blades is attached to the surface of the fixed ring, the other end of each of the at least two hook-type blades is connected with the inner wall of the air inlet section, the edges of the hook-type blades are sequentially overlapped and enclosed to form the air vent, and the hook-type blades have elasticity; and the control part is connected with the hook type blade and drives the blade to move so as to change the overlapping area and further change the size of the air vent.

According to an embodiment of the present application, each of the hook blades includes: the adjustable blade is in a fan shape and is attached to the surface of the fixed ring; the elastic blade is connected to one side, far away from the inner wall of the air inlet section, of the adjustable blade and is connected with the inner wall of the air inlet section.

The beneficial effect of this application is: the small-size injection apparatus of this application corresponds through every venturi and provides the gas carrier by a fan, and the material subassembly input material is thrown to corresponding one to correspond a spray gun with the material blowout, can realize should throw the independent accurate control of material point in the furnace. Because the material is thrown alone through a small-size injection apparatus to the different throw material points of burning furnace, the volume independent control of the denitration material that every throw material point dropped into, the simple operation, the energy consumption is low, and small-size injection apparatus is portable, and the installation is simple. Meanwhile, each venturi is correspondingly provided with a gas carrier by a fan, so that the air quantity is sufficient, and long-lift injection can be realized.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without inventive efforts, wherein:

FIG. 1 is a schematic overall structural view of an embodiment of a venturi of the present application;

FIG. 2 is a partial front view schematic illustration of an adjustment member of an embodiment of the venturi of the present application;

FIG. 3 is a side view, partially in elevation, of an adjustment member of an embodiment of the venturi of the present application;

FIG. 4 is a schematic illustration of the front view of the control member of an embodiment of the venturi of the present application;

FIG. 5 is a schematic view of the overall structure of an embodiment of the compact spray apparatus of the present application;

FIG. 6 is a schematic diagram of the overall structure of an embodiment of the multi-point spray device of the present application;

FIG. 7 is a schematic diagram of a bifurcated outlet conduit according to an embodiment of the multi-point jet device of the present application;

FIG. 8 is a schematic top view of an embodiment of the multi-point spray device of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

Referring to fig. 1 to 4, fig. 1 is a schematic overall structure diagram of a venturi according to an embodiment of the present application; FIG. 2 is a partial front view schematic illustration of an adjustment member of an embodiment of the venturi of the present application; FIG. 3 is a side view, partially in elevation, of an adjustment member of an embodiment of the venturi of the present application; FIG. 4 is a schematic front view of a controller according to a venturi embodiment of the present application.

An embodiment of the present application provides a venturi 100, as shown in FIG. 1, the venturi 100 including an intake section 110, a diffuser section 120, a throat section 130, and a tuning member 140. Wherein, one end of the air inlet section 110 is provided with an air inlet 111 for air to enter, and the air is a carrier; one end of the diffusion section 120 is provided with an air outlet 121 for ejecting the material carried by the gas into a connecting pipe connected with the diffusion section 120; the throat section 130 communicates the intake section 110 and the diffuser section 120. The joint of the throat section 130 and the air inlet section 110 is provided with a feed inlet 160, and the feed inlet 160 is used for feeding materials. The adjusting member 140 is disposed between the gas inlet 111 and the material inlet 160, the adjusting member 140 forms a gas vent 150 through which gas passes, and the size of the gas vent 150 is smaller than the size of the final discharge port of the venturi 100 connecting pipe (such as a spray gun), so that the gas is blown in from the gas inlet 111, the gas is pressurized and accelerated through the gas vent 150, the static pressure at the material inlet 160 is reduced, a front-back pressure difference is formed, and the material at the material inlet 160 is sucked into the pipeline. When the final discharge gate of venturi 100 connection pipe fitting need spout out the material with more speed and pressure, perhaps venturi 100 connects the pipeline end of pipe fitting and heat source contact, when the material glues the wall and leads to terminal discharge gate pipe diameter to change in the pipeline end, the adjustable blow vent 150 size of regulating part 140, thereby make the effective pipe diameter of the terminal discharge gate of venturi 100 connection pipe fitting and blow vent 150 size proportion accord with the user demand, can ensure that feed inlet 160 below forms the negative pressure, avoid appearing the return air and lead to material spun problem.

It should be noted that the feeding hole 160 is disposed at the junction of the throat section 130 and the air inlet section 110, on one hand, a negative pressure is easily formed at this point, so as to suck the material; on the other hand, compared with the case that the feed inlet 160 is directly disposed on the throat section 130, the strength of the throat section 130 can be improved, and the region where the feed inlet 160 is disposed can be larger, but in other embodiments, the feed inlet 160 may also be disposed on the throat section 130.

Specifically, the air inlet section 110 is configured to communicate with a high pressure fan 220 (see fig. 5), the high pressure fan 220 blows strong wind into the air inlet section 110 through the air inlet 111, and the high pressure fan 220 includes a compressor, a blower, a roots blower, and the like.

As shown in fig. 1 to 3, the adjusting member 140 includes a fixing ring 141, a hook blade 142, and a control member 143. The outer edge of the fixing ring 141 is connected to the inner wall of the air intake section 110, and the inner edge of the fixing ring 141 forms a through hole through which air flows and which is the maximum size of the air vent 150. The hook-type blade 142 is provided with at least two pieces, one end of the hook-type blade 142 is attached to the surface of the fixing ring 141, the other end of the hook-type blade 142 is connected with the inner wall of the air inlet section 110, the edges of the hook-type blade 142 are sequentially overlapped and closed to form the air vent 150, and the hook-type blade 142 has elasticity. The control member 143 is connected to the hook blade 142, and drives the hook blade 142 to move to change the overlapping area, so as to change the size of the vent 150, to adjust the injection pressure and the injection speed, and to control the negative pressure suction. Specifically, the control part 143 controls the hook-type blades 142 to move along the axial section of the air inlet section 110 in a radial direction synchronously, when the hook-type blades 142 move towards the axial direction of the air inlet section 110 synchronously, the overlapping area of the hook-type blades 142 is increased, and the size of the air vent 150 is reduced, and when the hook-type blades 142 move away from the axial direction of the air inlet section 110 synchronously, the overlapping area of the hook-type blades 142 is reduced, and the size of the air vent 150 is increased.

Specifically, the number of hook blades 142 may be two, three, four, six, or more.

As shown in fig. 2, the hook blade 142 has four examples, one end of the hook blade 142a is pressed downward by the hook blade 142b, the other end is pressed above the hook blade 142d, one end of the hook blade 142b is pressed downward by the hook blade 142c, the other end is pressed above the hook blade 142a, one end of the hook blade 142c is pressed downward by the hook blade 142d, the other end is pressed above the hook blade 142b, one end of the hook blade 142d is pressed downward by the hook blade 142a, and the other end is pressed above the hook blade 142c, so as to form an annular partially overlapped shape.

As shown in fig. 1, the hook vane 142 includes an adjustable vane 1421 and an elastic vane 1422, the adjustable vane 1421 is fan-shaped and is abutted to the surface of the fixing ring 141, the elastic vane 1422 is connected to one side of the adjustable vane 1421 far from the inner wall of the air intake section 110 and is connected to the inner wall of the air intake section 110, so that the elastic vane 1422 supports and fixes the adjustable vane 1421, and the elastic vane 1422 has elasticity and can cooperate with the movement of the adjustable vane 1421 through deformation. Specifically, the elastic blade 1422 is made of 65Mn elastic material, and has elasticity and a certain supporting force.

As shown in fig. 1 and 4, the control part 143 includes connecting rods 1431 and a controller 1432, the number of the connecting rods 1431 is the same as that of the adjustable vanes 1421, and the connecting rods 1431 are connected to the adjustable vanes in a one-to-one correspondence, and the controller 1432 controls the connecting rods 1431 to move synchronously along the radial direction of the air intake section 110. The controller 1432 includes the curved pole 14321 and the push rod 14322, and the curved pole 14321 is the same in quantity with connecting rod 1431, and is connected with connecting rod 1431 one-to-one, and curved pole 14321 overlaps end to end in order, forms closed annular. The push rod 14322 is radially movably arranged along the air inlet section 110, the push rod 14322 is connected with at least one arc-shaped rod 14321, namely, at least one push rod 14322 is arranged and is correspondingly connected with one arc-shaped rod 14321, the push rod 14322 is radially extended and retracted along the air inlet section 110, and then the force is applied to the at least one arc-shaped rod 14321 to drive other arc-shaped rods 14321 to be synchronously folded or expanded, so that the adjustable blades 1421 are driven to synchronously move through the linkage effect of the connecting rod 1431 to change the size of the air vent 150.

Specifically, the curved bar 14321 is made of a wear resistant smooth metal, and the curved bar 14321 is resilient. The push rods 14322 are provided with one and connected to one of the curved rods 14321 to effect actuation of the controller 1432. In other embodiments, the push rods 14322 are provided in plural numbers, and can be respectively connected to each of the arc-shaped rods 14321 in a one-to-one correspondence, and are driven by the push rods 14322 simultaneously, so as to achieve synchronous driving of the controller 1432.

The push rod 14322 is multi-functional electric putter 14322, and outside control end is connected to push rod 14322, realizes the accurate control to the tensile distance of push rod 14322 to the realization is to the accurate control of air vent 150 size.

In one embodiment, the venturi 100 further includes a feeding section 161, the feeding section 161 is disposed at the feeding port 160, and the material is fed into the feeding section 161 and sucked into the feeding port 160 under negative pressure inside the venturi 100 to realize blanking.

Referring to fig. 5, fig. 5 is a schematic overall structure diagram of an embodiment of a small-sized spraying device according to the present application.

In another embodiment of the present application, a small-sized spraying device 200 is provided, as shown in fig. 5, the spraying device 200 includes a venturi 100, a feeding assembly 210 feeding materials into the venturi 100, a blower 220, and a spray gun 230. The venturi 100 comprises an air inlet section 110, a diffuser section 120 and a throat section 130, wherein one end of the air inlet section 110 is provided with an air inlet 111 for air to enter, and the air is a carrier; one end of the diffusion section 120 is provided with an air outlet 121 for air carrying materials to enter the spray gun 230; the throat section 130 communicates the intake section 110 and the diffuser section 120. The joint of the throat section 130 and the air inlet section 110 is provided with a feed inlet 160, and the feed inlet 160 is used for feeding materials. The regulating member 140 is disposed between the gas inlet 111 and the material inlet 160 so that gas is blown in from the gas inlet 111 to suck the material at the material inlet 160 into the duct. The feeding assembly 210 is communicated with the feeding hole 160 and used for feeding materials into the venturi 100, the fan 220 is communicated with the air inlet 111 and used for independently providing air into the venturi 100, the spray gun 230 is communicated with the diffusion section 120 of the venturi 100, the spray gun 230 is provided with a discharge hole 231, and the spray gun 230 is used for being inserted into a hearth to spray materials. Therefore, the small-sized injection device 200 of the embodiment can realize the independent accurate control of the feeding point in the hearth by providing the gas carrier corresponding to one fan 220 for each venturi 100, feeding the material corresponding to one feeding component 210 and ejecting the material corresponding to one spray gun 230. Because the material is thrown alone through a small-size injection apparatus 200 to the different throw material points of burning furnace, the volume independent control of the denitration material that every throw material point dropped into, the simple operation, the energy consumption is low, and small-size injection apparatus 200 is portable, and the installation is simple. Meanwhile, each venturi 100 corresponds to one fan 220 to provide gas carrier, so that the air quantity is sufficient, and long-lift injection can be realized.

The venturi 100 of this embodiment may further adopt the structure of the venturi 100 described in any of the above embodiments to realize the adjustability of the internal air port 150, so that the air is blown in from the air inlet 111, pressurized and accelerated through the air port 150, the static pressure at the feed port 160 is reduced, a front-back pressure difference is formed, and the material at the feed port 160 is sucked into the pipeline. The size of the vent 150 is adjusted through the adjusting piece 140, so that the effective pipe diameter of the discharge port 231 at the tail end of the spray gun 230 and the size proportion of the vent 150 meet the use requirement, the negative pressure below the stock bin 212 can be ensured, and the problem of air return of the stock bin 212 and material ejection is avoided. Other structures of the venturi 100 of the present embodiment are substantially the same as the venturi 100 of the above embodiment, and are not described herein again.

As shown in fig. 5, the feeding assembly 210 includes a feeding pipe 211, a hopper 212, a screw 213, and a motor 214. Wherein, the feeding pipeline 211 includes the relative pan feeding end and the discharge end that sets up, and discharge end and feed inlet 160 intercommunication, feed bin 212 and pan feeding end intercommunication, screw rod 213 rotate to set up in feeding pipeline 211, and motor 214 drive screw rod 213 rotates. The material in the feed bin 212 falls into the feeding pipeline 211, the screw 213 rotates to evenly convey the material to the discharge end, and the material enters the venturi 100 from the feed inlet 160 under the action of negative pressure formed inside the venturi 100 and the gravity of the material. The uniform and stable conveying of the materials can be realized through the conveying of the screw rod 213, and the excessive input of the materials is avoided. The motor 214 is a variable frequency motor 214, and is used for performing variable frequency control on the rotating speed of the screw 213 according to the required material amount so as to control the speed of the screw 213 for conveying the material to the venturi 100.

As shown in fig. 5, the bin 212 is communicated with the feeding end of the feeding pipe 211 through a feeding pipe 215, and a control valve 2151 is arranged on the feeding pipe 215. The control valve 2151 controls the speed of the material input from the bin 212 to the feeding pipe 211, and when the injection is abnormal, the control valve 2151 can stop the material input from the bin 212 to the feeding pipe 211 to avoid the return air from the bin 212. The control valve 2151 may be a butterfly valve.

As shown in FIG. 5, the material is stored in the storage bin 212, the material is fed through the control valve 2151, the material is fed to the feed port 160 through the screw 213, and the material and the gas in the conveying pipeline 250 are sprayed out from the outlet of the spray gun 230 through pressurization and acceleration of the venturi 100 by the fan 220.

As shown in FIG. 5, the spray gun 230 is communicated with the diffuser section 120 of the venturi 100 through a delivery pipe 250, the diffuser section 120 is fixed with the delivery pipe 250 through a quick joint 260, and the spray gun 230 is fixed with the delivery pipe 250 through the quick joint 260, so that the spray gun 230 and the delivery pipe 250 can be quickly disassembled and assembled.

As shown in fig. 5, the spray gun 230 is provided with a wind pressure and wind speed monitor 270 to monitor the wind pressure and wind speed at the nozzle of the spray gun 230, so that the wind speed of the fan 220 and the size of the air vent 150 in the venturi 100 can be automatically adjusted for the spray guns 230 with different pipe diameters to meet the requirement of spraying. In addition, when the spray gun 230 is inserted into the inner section of the incinerator, the material is melted and adhered to the wall due to high temperature, the effective pipe diameter of the discharge port 231 of the spray gun 230 changes, and the wind pressure and wind speed monitor 270 can sense the change of wind pressure and wind speed and adjust the size of the vent 150 in the venturi 100 or the wind speed of the fan 220.

As shown in fig. 5, the blower 220 is a high pressure blower, and the high pressure blower includes a compressor, a blower, a roots blower, and the like.

As shown in fig. 5, the feeding assembly 210 further includes a cover 241, which is open at the top of the bin 212 for facilitating the material to be fed, and the cover 241 is hinged to the open end of the top of the bin 212. Of course, if the bin 212 is open at the side, the cover 241 can be hinged to the open at the side of the bin 212, which is not limited herein.

As shown in fig. 5, the lid 241 is provided with a handle 242, and the lid 241 is easily biased by the handle 242 to open or close the lid 241.

As shown in fig. 5, the observation window 243 is disposed on the bin 212 for observing the material condition in the bin 212, so as to add the material in time and observe whether the bin 212 is abnormal.

Referring to fig. 6 to 8, fig. 6 is a schematic overall structure diagram of an embodiment of a multi-point injection device according to the present application; FIG. 7 is a schematic diagram of a bifurcated outlet conduit according to an embodiment of the multi-point jet device of the present application; FIG. 8 is a schematic top view of an embodiment of the multi-point spray device of the present application.

In yet another embodiment of the present application, a multi-point spray device 300 is provided, as shown in fig. 6, the spray device 300 includes at least two venturis 100, a diverging outlet conduit 390, a blower 320, a dosing assembly 310, and a spray gun 330. The venturi 100 comprises an air inlet section 110, a diffuser section 120 and a throat section 130, wherein one end of the air inlet section 110 is provided with an air inlet 111 for air to enter, and the air is a carrier; one end of the diffusion section 120 is provided with an air outlet 121 for air carrying materials to enter the spray gun 330; the throat section 130 communicates the intake section 110 and the diffuser section 120. The joint of the throat section 130 and the air inlet section 110 is provided with a feed inlet 160, and the feed inlet 160 is used for feeding materials. The regulating member 140 is disposed between the gas inlet 111 and the material inlet 160 so that gas is blown in from the gas inlet 111 to suck the material at the material inlet 160 into the duct.

As shown in fig. 6 and 7, the branched outlet pipe 390 includes an inlet end and at least two outlet ends, and each outlet end is in one-to-one correspondence with the inlet 111 of each venturi 100. The blower 320 is connected to the air inlet end for providing air to the branched air outlet pipe 390, and the air entering from the air inlet end is dispersed through the branched air outlet pipe 390 and then is respectively ejected from the air outlet end.

As shown in fig. 6 and 8, a feeding assembly 310 is disposed corresponding to each venturi 100 and is in communication with the feeding port 160 for feeding material into the venturi 100. The spray gun 330 is communicated with the diffusion section 120 of the Venturi 100, the spray gun 230 is provided with a discharge hole 231, and the spray gun 230 is used for being inserted into a hearth to spray materials. Therefore, the multi-point injection device 300 of the embodiment firstly distributes the gas carrier to each venturi 100, each venturi 100 feeds the material, the gas carrier carries the material to be injected from the corresponding spray gun 330, and the material is fed into the hearth, so that the accurate control of each feeding point of the hearth is realized. The amount of denitration materials fed to different feeding points of the incinerator is controlled respectively through the multi-point injection device 300, so that the amount of the denitration materials is saved, and the cost is reduced.

As shown in fig. 7, the branched outlet pipe 390 includes a main pipe 391 and a plurality of sub-pipes 392 uniformly dispersed by a hierarchy of the main pipe 391, the main pipe 391 forming an inlet end, and each sub-pipe 392 forming an outlet end. Specifically, the main pipe 391 connects several sub-pipes 392, the gas entering from the main pipe 391 can be uniformly dispersed into the several sub-pipes 392, each sub-pipe 392 is uniformly dispersed into the several sub-pipes 392, and so on, the sub-pipe 392 at the extreme end forms the gas outlet end and communicates with the gas inlet 111 of the venturi 100.

As shown in fig. 7, the number of sub-conduits 392 to which the main conduit 391 is connected may be two, three, four or more, i.e. dividing the gas into two, three, four, etc. The number of the sub-pipes 392 and the main pipe 391 can be the same or different, and it is only necessary to distribute enough gas carrier to each feeding point according to actual needs.

In one embodiment, as shown in fig. 7, the main conduit 391 is configured to provide the gas carrier to the venturis 100 at different feeding points through one-half, two-half, and four-quarter to form eight terminal sub-conduits 392.

The venturi 100 of this embodiment may further adopt the structure of the venturi 100 described in any of the above embodiments to realize the adjustability of the internal air port 150, so that the air is blown in from the air inlet 111, pressurized and accelerated through the air port 150, the static pressure at the feed port 160 is reduced, a front-back pressure difference is formed, and the material at the feed port 160 is sucked into the pipeline. The size of the vent 150 is adjusted through the adjusting piece 140, so that the effective pipe diameter of the spray gun 330 and the size proportion of the vent 150 meet the use requirements, the negative pressure below the storage bin 312 can be ensured, and the problem of air return of the storage bin 312 and material ejection is avoided. Other structures of the venturi 100 of the present embodiment are substantially the same as the venturi 100 of the above embodiment, and are not described herein again.

As shown in fig. 6, the feeding assembly 310 includes a feeding pipe 311, a screw 313, and a motor 314. The feeding pipeline 311 comprises a feeding end and a discharging end which are arranged oppositely, the discharging end is communicated with the feeding port 160, the storage bin 312 is communicated with the feeding end, the screw 313 is rotatably arranged in the feeding pipeline 311, and the motor 314 drives the screw 313 to rotate. The material in the feed bin 312 falls into the feeding pipeline 311, the screw 313 rotates to evenly convey the material to the discharge end, and the material enters the venturi 100 from the feed inlet 160 under the action of negative pressure formed inside the venturi 100 and the gravity of the material. The uniform and stable conveying of the materials can be realized through the conveying of the screw 313, and the excessive input of the materials is avoided. The motor 314 is a variable frequency motor 314 and is used for performing variable frequency control on the rotating speed of the screw 313 according to the required material amount so as to control the speed of the screw 313 for conveying the material to the venturi 100.

As shown in fig. 6 and 8, the injection device 300 further includes a bin 312, and the bin 312 is used for storing the material. The storage bin 312 is formed with a plurality of discharge ports, each of which is arranged in one-to-one correspondence with the feeding assembly 310 and is communicated with the feeding end of the feeding pipeline 311. The feeding pipes 311 of the different feeding points of the spraying device 300 of the present application are thus fed from the same magazine 312.

As shown in fig. 6, the bin 312 is communicated with the feeding end of each feeding pipe 311 through a feeding pipe 315, and a control valve (not shown) is disposed on the feeding pipe 315. The control valve controls the feeding speed of the bin 312 to the feeding pipeline 311, and when the injection of a certain feeding point is abnormal, the control valve can stop the feeding of the bin 312 to the corresponding feeding pipeline 311, so as to avoid the return air of the bin 312. Specifically, the control valve may employ a butterfly valve.

As shown in fig. 6, in order to make the feeding pipe 311 blanking uniform, the spraying device 300 further includes a stirring paddle 381 and a stirring motor 382, the stirring paddle 381 is rotatably disposed in the storage bin 312, and the stirring motor 382 drives the stirring paddle 381 to rotate. The stirring paddle 381 is used for stirring materials and controlling blanking, the materials in the storage bin 312 can be uniformly dispersed by rotating the stirring paddle 381, and meanwhile, the materials are uniformly blanked to each feeding pipeline 311. The spraying device 300 further comprises a fixed bearing 383, the fixed bearing 383 is disposed in the bin 312, and the stirring paddle 381 is connected to the fixed bearing 383 so as to realize a rotating connection with the bin 312.

As shown in FIG. 6, the spray gun 330 is communicated with the diffuser section 120 of the venturi 100 through a delivery pipe 350, the diffuser section 120 is fixed with the delivery pipe 350 through a quick joint 360, and the spray gun 330 is fixed with the delivery pipe 350 through the quick joint 360, so that the spray gun 330 and the delivery pipe 350 can be quickly disassembled and assembled.

As shown in fig. 6, the spray gun 330 is provided with a wind pressure and wind speed monitor 370 to monitor the wind pressure and wind speed at the nozzle of the spray gun 330, so that the wind speed of the fan 320 and the size of the air port 150 in the venturi 100 can be automatically adjusted for spray guns 330 with different pipe diameters to meet the requirement of spraying.

Specifically, the blower 320 is a high pressure blower, and the high pressure blower includes a compressor, a blower, a roots blower, and the like.

As shown in fig. 8, the feeding assembly 310 further includes a cover 341, which is open at the top of the bin 312 for facilitating the material to be put in, and the cover 341 is hinged to the open end of the top of the bin 312. Of course, if the side of the bin 312 is open, the cover 341 can be hinged to the side of the bin 312, which is not limited herein.

As shown in fig. 8, the cap 341 is provided with a handle 342, and the cap 341 is easily forced by the handle 342 to open or close the cap 341.

Further, an observation window (not shown) is disposed in the bin 312 for observing the material condition in the bin 312, so as to add the material in time and observe whether the bin 312 is abnormal or not.

The above description is only an example of the present application and is not intended to limit the scope of the present application, and all modifications of equivalent structures and equivalent processes, which are made by the contents of the specification and the drawings, or which are directly or indirectly applied to other related technical fields, are intended to be included within the scope of the present application.

Claims

1. A compact spray device, said spray device comprising:

a venturi, the venturi comprising:

one end of the air inlet section is provided with an air inlet for air to enter;

one end of the diffusion section is provided with an air outlet for ejecting the materials carried by the air;

the throat pipe section is communicated with the air inlet section and the diffusion section, and a feed inlet is formed in the joint of the throat pipe section and the air inlet section;

the feeding assembly is communicated with the feeding hole and is used for feeding materials into the venturi;

the fan is communicated with the air inlet and is used for independently providing air to the inner part of the venturi;

the spray gun, the intercommunication the venturi the diffuser section, the spray gun is provided with the discharge gate, just the spray gun is used for inserting furnace injection material.

2. The ejector device of claim 1, wherein said venturi further comprises:

the regulating part, set up in the air inlet with between the feed inlet, the regulating part forms the blow vent that supplies gas to pass through, the size of blow vent is less than the size of discharge gate.

3. The spraying device of claim 1, wherein the dosing assembly comprises:

the feeding pipeline comprises a feeding end and a discharging end which are arranged oppositely, and the discharging end is communicated with the feeding hole;

The storage bin is communicated with the feeding end;

the screw is rotatably arranged in the feeding pipeline;

and the motor drives the screw to rotate.

4. The spraying device of claim 3, wherein the hopper is in communication with the feed end of the feed conduit via a feed tube, the feed tube having a control valve disposed thereon.

5. The spraying device of claim 3, wherein the dosing assembly further comprises:

the bin cover is hinged to the open end of the bin;

a handle disposed on the bin cover;

the observation window is arranged in the storage bin.

6. The spraying device of claim 1, wherein the spray gun is in communication with the venturi through a delivery conduit, the spray gun being secured to the delivery conduit by a quick-connect.

7. The spraying apparatus of claim 1, wherein the spray gun is provided with a wind pressure and wind speed monitor to monitor wind pressure and wind speed at a muzzle of the spray gun.

8. The ejector device of claim 1, wherein said fan is a variable frequency fan, said fan comprising a compressor, a blower, and a roots fan.

9. The spraying device of claim 2, wherein the adjustment member comprises:

The outer edge of the fixing ring is connected to the inner wall of the air inlet section;

one end of each of the at least two hook-type blades is attached to the surface of the fixed ring, the other end of each of the at least two hook-type blades is connected with the inner wall of the air inlet section, the edges of the hook-type blades are sequentially overlapped and enclosed to form the air vent, and the hook-type blades have elasticity;

and the control part is connected with the hook type blade and drives the blade to move so as to change the overlapping area and further change the size of the air vent.

10. The ejector device of claim 2, wherein each of said hook vanes comprises:

the adjustable blade is in a fan shape and is attached to the surface of the fixed ring;

the elastic blade is connected to one side, far away from the inner wall of the air inlet section, of the adjustable blade and is connected with the inner wall of the air inlet section.