A blowing device, a combustion furnace and a method for blowing secondary aluminum ash into a furnace for treatment

Abstract

The present invention relates to the technical field of industrial hazardous waste treatment, and specifically to a blowing device, a combustion furnace and a method for blowing secondary aluminum ash into a furnace for treatment, including a supporting device, a driving device, a material storage device and a blowing mechanism. It is characterized in that the material storage device and the driving device are both installed on the supporting device; the material storage device is connected to the blowing mechanism through a conveying device; the material storage device is provided with a sensing device, and the sensing device is installed on the side wall of the material storage device; the blowing mechanism includes a feed pipe and a spraying pipe; a power device is arranged between the feed pipe and the spraying pipe, and the feed pipe and the spraying pipe are connected through the power device; the power device includes a connecting layer and a power layer, the power layer is wrapped on the connecting layer, and the power layer is provided with an air inlet hole and an air outlet hole; the present invention can realize continuous production, the processing capacity is controllable, and the cost is reduced; through the blowing mechanism, the secondary aluminum ash is continuously added into the combustion furnace for combustion reaction, and the production efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of industrial hazardous waste treatment, and specifically to a blowing device, a combustion furnace, and a method for blowing secondary aluminum ash into a furnace for treatment. Background Technique

[0002] Currently, the common methods for treating secondary aluminum ash can be divided into two types: wet method and fire method; among them, the fire method includes rotary furnace roasting or rotary kiln roasting.

[0003] When treating secondary aluminum ash by the wet method, a water tank or a reaction tank is required. The secondary aluminum ash reacts with the solution, and the treatment can only be carried out pool by pool, without continuous treatment, resulting in low production efficiency; if high production efficiency is required, a large number of water tanks are needed, occupying a large area and requiring high investment.

[0004] When treating secondary aluminum ash by the fire method, the used rotary furnace or rotary kiln also places the secondary aluminum ash in it for treatment. After one furnace is treated, it needs to be cooled, cleaned, and then the next furnace can be treated. If high production efficiency is required, a large number of rotary furnaces or rotary kilns are needed, occupying a large area and requiring high investment.

[0005] Based on this, the present invention provides a blowing device, a combustion furnace, and a method for blowing secondary aluminum ash into a furnace for treatment to solve the above problems. Summary of the Invention

[0006] The technical problem to be solved by the present invention is to provide a blowing device, a combustion furnace, and a method for blowing secondary aluminum ash into a furnace for treatment, which can effectively solve the problems raised in the above background technique.

[0007] To solve the above problems, the technical solution adopted by the present invention is: a blowing device, including a support device, a driving device, a material storage device, and a blowing mechanism, characterized in that

[0008] Both the material storage device and the driving device are installed on the support device; a conveying device is provided between the material storage device and the blowing mechanism, and the material storage device is connected to the blowing mechanism through the conveying device;

[0009] The material storage device is provided with a sensing device, and the sensing device is installed on the side wall of the material storage device;

[0010] The blowing mechanism includes a feed pipe and a spraying pipe; a power device is provided between the feed pipe and the spraying pipe, and the feed pipe and the spraying pipe are connected through the power device;

[0011] The power device includes a connection layer and a power layer, the power layer is wrapped around the connection layer, and the power layer is provided with an air inlet hole and an air outlet hole.

[0012] Preferably, the sensing device includes a first sensor and a second sensor; both the first sensor and the second sensor are installed on the inner wall of the storage device; the first sensor is located at the upper part of the inner wall of the storage device, and the second sensor is located at the lower part of the inner wall of the storage device.

[0013] Preferably, the storage device is provided with a stirring device, the stirring device is located at the lower part of the storage device, and the stirring device is rotationally connected to the driving device.

[0014] Preferably, the conveying device is fixedly installed on the supporting device; the conveying device includes a first conveying pipe and a second conveying pipe; the first conveying pipe communicates with the bottom of the storage device.

[0015] Preferably, a driving screw for conveying materials is arranged in the first conveying pipe, and the driving screw is rotationally connected to the driving device.

[0016] Preferably, a storage bucket is arranged between the first conveying pipe and the second conveying pipe, and the first conveying pipe, the storage bucket and the second conveying pipe are communicated with each other; a blowing mechanism is arranged at one end of the second conveying pipe; the second conveying pipe is connected to the feed pipe of the blowing mechanism and is communicated with the feed pipe.

[0017] Preferably, the power source of the power device is compressed air; the power device further includes a precision pressure regulating valve for adjusting the intake of compressed air; the precision pressure regulating valve is connected to the air inlet hole through a pipeline.

[0018] Preferably, there are multiple exhaust holes in the exhaust hole of the power layer, and the exhaust holes are arranged in a circumferential array on the side wall of the power layer; the feed pipe, the connection layer and the spraying pipe are communicated with each other; the power layer is communicated with the spraying pipe through the exhaust hole.

[0019] Preferably, a feeding port for adding materials is arranged at the top of the storage device, and a dust removal bag for preventing dust from flying when adding materials is arranged.

[0020] Preferably, the present invention further relates to a combustion furnace, on which a blowing device as described above is installed.

[0021] Preferably, the present invention further relates to a method for injecting secondary aluminum ash into a furnace for treatment, which is characterized in that a blowing device as described above is adopted, and the specific steps include:

[0022] Step 1, conveying and storing secondary aluminum ash: conveying secondary aluminum ash into the storage device for storage;

[0023] Step 2, sensing and starting / stopping conveying: stopping or continuing to convey secondary aluminum ash according to the sensor signal;

[0024] Step 3, Stir the secondary aluminum ash: Stir the secondary aluminum ash in the storage device to prevent the secondary aluminum ash from agglomerating;

[0025] Step 4, Transport the secondary aluminum ash: Transport the secondary aluminum ash from the first conveying pipe to the second conveying pipe, and then enter the injection mechanism;

[0026] Step 5, Add a power source: Connect compressed air to the power device and adjust the size of the compressed air through a precision pressure regulating valve;

[0027] Step 6, Inject the secondary aluminum ash: Discharge the compressed air, and the compressed air sprays the secondary aluminum ash in the injection mechanism into the combustion furnace in a spray form for combustion reaction.

[0028] Compared with the prior art, the present invention provides an injection device, a combustion furnace and a method for injecting secondary aluminum ash into the furnace for treatment, having the following advantages:

[0029] 1. The present invention can achieve continuous production, the processing capacity is controllable, and the cost is reduced; through the injection mechanism, the secondary aluminum ash is continuously added into the combustion furnace for combustion reaction, improving the production efficiency.

[0030] 2. The present invention sprays the secondary aluminum ash into the combustion furnace in the form of powder mist through the injection mechanism, so that the contact area is larger during the high-temperature combustion reaction of the secondary aluminum ash, and the reaction is more sufficient.

[0031] 3. The present invention replenishes materials inductively and stops replenishing materials; to ensure continuous feeding during continuous production. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0033] Figure 2 is a schematic diagram of the internal structure of the present invention;

[0034] Figure 3 is an enlarged view of the internal structure of the injection mechanism of the present invention;

[0035] Figure 4 is a schematic diagram of the injection mechanism of the present invention;

[0036] Figure 5 is a schematic diagram of the exhaust hole of the power device of the present invention;

[0037] Wherein: 1. Support device; 2. Driving device; 201. Motor; 202. Reducer; 3. Material storage device; 301. Feeding port; 302. Dust removal bag; 4. Blowing mechanism; 401. Feeding pipe; 402. Spraying pipe; 5. Conveying device; 501. First conveying pipe; 502. Second conveying pipe; 503. Driving screw; 504. Stock bucket; 6. Sensing device; 601. First sensor; 602. Second sensor; 7. Power device; 701. Power layer; 702. Connection layer; 703. Air inlet hole; 704. Air outlet hole; 8. Stirring device; 9. Precision pressure regulating valve. Detailed implementation manners

[0038] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0039] Embodiment 1:

[0040] Referring to Figures 1-5 , the present invention provides a blowing device, including a support device 1, a driving device 2, a material storage device 3 and a blowing mechanism 4, characterized in that

[0041] The material storage device 3 and the driving device 2 are both installed on the support device 1; a conveying device 5 is provided between the material storage device 3 and the blowing mechanism 4, and the material storage device 3 is connected to the blowing mechanism 4 through the conveying device 5;

[0042] The material storage device 3 is provided with a sensing device 6, and the sensing device 6 is installed on the side wall of the material storage device 3;

[0043] The blowing mechanism 4 includes a feeding pipe 401 and a spraying pipe 402; a power device 7 is provided between the feeding pipe 401 and the spraying pipe 402, and the feeding pipe 401 and the spraying pipe 402 are connected through the power device 7;

[0044] The power device 7 includes a connection layer 702 and a power layer 701. The power layer 701 uses compressed air as a power source. The connection layer 702 is used to connect the feeding pipe 401 and the spraying pipe 402. The power layer 701 is wrapped around the connection layer 702, and the power layer 701 is provided with an air inlet hole 703 and an air outlet hole 704. The air inlet hole 703 is used to access compressed air, and the air outlet hole 704 is used to discharge compressed air.

[0045] Preferably, the sensing device 6 includes a first sensor 601 and a second sensor 602; both the first sensor 601 and the second sensor 602 are installed on the inner wall of the storage device 3; the first sensor 601 is located at the upper part of the inner wall of the storage device 3, and the second sensor 602 is located at the lower part of the inner wall of the storage device 3.

[0046] The first sensor 601 and the second sensor 602 are used to detect the situation of secondary aluminum ash in the storage device 3; when adding secondary aluminum ash, when the secondary aluminum ash in the storage device 3 exceeds the first sensor 601, it means that the secondary aluminum ash is full, and the system stops transporting the secondary aluminum ash; when the secondary aluminum ash in the storage device 3 is lower than the second sensor 602, it means that the secondary aluminum ash is empty, and the system starts to transport the secondary aluminum ash until the secondary aluminum ash exceeds the first sensor 601, and the system stops transporting.

[0047] Preferably, the storage device 3 is provided with a stirring device 8, the stirring device 8 is located at the lower part of the storage device 3, and the stirring device 8 is rotationally connected to the driving device 2.

[0048] The driving device 2 includes a motor 201 and a speed reducer 202, the motor 201 is connected to the speed reducer 202, and the motor 201 is controlled by a frequency converter; the stirring device 8 is connected to the speed reducer 202;

[0049] The stirring device 8 is driven by the driving device 2 and is in a normally open state to prevent the secondary aluminum ash from agglomerating and affecting the subsequent process. Preferably, the conveying device 5 is fixedly installed on the supporting device 1; the conveying device 5 includes a first conveying pipe 501 and a second conveying pipe 502; the first conveying pipe 501 communicates with the bottom of the storage device 3 to facilitate the transmission of secondary aluminum ash.

[0050] Preferably, a driving screw 503 for conveying materials is provided in the first conveying pipe 501, the driving screw 503 is rotationally connected to the driving device 2, and the driving screw 503 is used to convey secondary aluminum ash.

[0051] The driving screw 503 is connected to the speed reducer 202, and the motor 201 drives the speed reducer 202; the driving screw 503 can accurately control the conveying speed and the conveying amount of the secondary aluminum ash.

[0052] The driving screw 503 adjusts the speed of conveying the secondary aluminum ash and the conveying amount of the secondary aluminum ash according to the Hz number; the Hz number for control adjustment is 0 - 50 Hz.

[0053] Preferably, a storage bucket 504 is provided between the first conveying pipe 501 and the second conveying pipe 502, and the first conveying pipe 501, the storage bucket 504 and the second conveying pipe 502 are connected and communicated with each other; a blowing mechanism 4 is provided at one end of the second conveying pipe 502; the second conveying pipe 502 is connected to the feed pipe 401 of the blowing mechanism 4, and the second conveying pipe 502 is communicated with the feed pipe 401.

[0054] The secondary aluminum ash conveyed in the first conveying pipe 501 reaches the second conveying pipe 502 after passing through the storage bucket 504; the storage bucket 504 can buffer the conveyed secondary aluminum ash and store part of the secondary aluminum ash.

[0055] Preferably, the power source of the power device 7 is compressed air, and the compressed air is 0.6 MPa to 1.0 MPa; the power device 7 further includes a precision pressure regulating valve 9 for adjusting the intake of compressed air; the precision pressure regulating valve 9 is connected to the air inlet hole 703 through a pipeline, and the precision pressure regulating valve 9 is used to adjust the size of the compressed air to control the ejection effect of the secondary aluminum ash.

[0056] Preferably, there are a plurality of exhaust holes 704 in the exhaust hole 704 of the power layer 701, and the exhaust holes 704 are arranged in a circumferential array on the side wall of the power layer 701, with reference to Figure 5 ; The exhaust holes 704 are arranged in a circumferential array, so that the compressed air can be evenly discharged from the exhaust holes 704; the feed pipe 401, the connection layer 702 and the spray pipe 402 are connected and communicated with each other; the power layer 701 is communicated with the spray pipe 402 through the exhaust holes 704, and the compressed air is discharged from the exhaust holes to the spray pipe 402.

[0057] When the secondary aluminum ash enters the blowing mechanism 4 from the second conveying pipe 502, the secondary aluminum ash is sprayed into the combustion furnace in an atomized state by compressed air for combustion; the atomized secondary aluminum ash can fully carry out combustion reaction in the combustion furnace.

[0058] Preferably, a feeding port 301 for adding materials and a dust removal bag 302 for preventing dust from flying when adding materials are provided on the top of the storage device 3.

[0059] Preferably, the present invention also relates to a combustion furnace, on which a blowing device as described above is installed.

[0060] Embodiment 2:

[0061] A method for injecting secondary aluminum ash into a furnace for treatment, the specific steps are as follows:

[0062] Step 1, conveying and storing secondary aluminum ash: The secondary aluminum ash is conveyed through an external pipeline, conveyed into the storage device 3 from the feeding port 301 for storage, and the feeding is stopped and started according to the sensing device 6.

[0063] Step 2, sensing to start and stop conveying: when the secondary aluminum ash conveyed into the storage device 3 exceeds the first sensor 601 of the storage device 3, it means that the secondary aluminum ash is full, the first sensor 601 transmits a signal, and the system stops conveying the secondary aluminum ash; when the secondary aluminum ash in the storage device 3 is lower than the second sensor 602, it means that the secondary aluminum ash is empty, and a signal is transmitted to the system to start conveying the secondary aluminum ash until the secondary aluminum ash exceeds the first sensor 601, and the system stops conveying.

[0064] Step 3, stirring the secondary aluminum ash: start the driving device 2 to drive the stirring device 8, so that the stirring device 8 is in a normally open state, stir the secondary aluminum ash to prevent the secondary aluminum ash from agglomerating and affecting subsequent processes.

[0065] Step 4, transporting secondary aluminum ash: driving the transmission screw 503 through the driving device 2, and the transmission screw 503 transports the secondary aluminum ash, and transports the secondary aluminum ash from the first conveying pipe 501 to the second conveying pipe 502, and then enters into the blowing mechanism 4; adjusting the speed of secondary aluminum ash transportation and the transportation amount of secondary aluminum ash according to the Hz number, wherein the controlled Hz number is 0 to 50 Hz.

[0066] Step 5, adding power source: connect compressed air, and add compressed air into the power layer 701 from the air inlet 703 of the power device 7 through the air pipe; the added compressed air is 0.6Mpa~1.0Mpa, and the compressed air is adjusted within this range through the precision pressure regulating valve 9.

[0067] Step 6, spraying secondary aluminum ash: when the added compressed air fills the power layer 701, the compressed air is sprayed out from the exhaust hole 704, and the secondary aluminum ash located at the spray pipe 402 is continuously sprayed into the combustion furnace in an atomized form for combustion reaction; when the atomized secondary aluminum ash burns in the combustion furnace, the reaction area is large and it can be fully burned.

[0068] Embodiment three:

[0069] refer to Figure 1 , Figure 2 , the storage device 3 is connected to the first conveying pipe 501, and the bottom of the storage device 3 is connected to the first conveying pipe 501, so as to facilitate the conveying of the secondary aluminum ash; a stirring device 8 is installed inside the storage device 3 to stir the conveyed secondary aluminum ash to prevent the secondary aluminum ash from agglomerating and affecting the subsequent process;

[0070] Fix the first conveying pipe 501 to the support device 1 by bolts; install a driving screw 503 in the first conveying pipe 501 to facilitate the conveying of the secondary aluminum ash of the storage device 3; fix the speed reducer 202 to the support device 1 by bolts, and the speed reducer 202 is driven by the motor 201; connect the mixing device 8 and the driving screw 503 to the speed reducer 202 respectively. Through the speed reducer 202, the mixing device 8 is in an always-open state, and the secondary aluminum ash can be continuously stirred; the motor 201 is controlled by a frequency converter, and the speed and the conveying amount of the secondary aluminum ash are adjusted according to the Hz number.

[0071] Install the storage bucket 504 at one end of the first conveying pipe 501 and communicate with the first conveying pipe 501; connect one end of the second conveying pipe 502 to one end of the storage bucket 504, and install a feed pipe 401 and a spraying pipe 402 at the other end of the second conveying pipe 502; the feed pipe 401 and the spraying pipe 402 are connected through a power device 7 in the middle; add compressed air to the power device 7. When the secondary aluminum ash is conveyed, the secondary aluminum ash is sprayed into the combustion furnace in a spray form through the compressed air 7 for reaction.

[0072] The whole process is continuous, continuously conveying the secondary aluminum ash and continuously introducing compressed air, so that the secondary aluminum ash continuously enters the combustion furnace for combustion reaction, improving the production efficiency.

[0073] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than limiting it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A blowing device, comprising a support device, a driving device, a material storage device and a blowing mechanism, characterized in that, The material storage device and the driving device are both installed on the support device; a conveying device is provided between the material storage device and the injection mechanism, and the material storage device is connected to the injection mechanism through the conveying device; The material storage device is provided with a sensing device, and the sensing device is installed on the side wall of the material storage device; The injection mechanism includes a feed pipe and a material spraying pipe; a power device is provided between the feed pipe and the material spraying pipe, and the feed pipe and the material spraying pipe are connected through the power device; The power device includes a connection layer and a power layer, the power layer is wrapped around the connection layer, and the power layer is provided with an air inlet hole and an air outlet hole; The sensing device includes a first sensor and a second sensor; both the first sensor and the second sensor are installed on the inner wall of the material storage device; the first sensor is located at the upper part of the inner wall of the material storage device, and the second sensor is located at the lower part of the inner wall of the material storage device; The power source of the power device is compressed air; the power device further includes a precision pressure regulating valve for adjusting the intake of compressed air; the precision pressure regulating valve is connected to the air inlet hole through a pipeline; There are multiple air outlet holes in the power layer, and the air outlet holes are arranged in a circumferential array on the side wall of the power layer; the feed pipe, the connection layer and the material spraying pipe are connected and communicated; the power layer is communicated with the material spraying pipe through the air outlet holes.

2. The blowing device according to claim 1, characterized in that, The material storage device is provided with a stirring device, the stirring device is located at the lower part of the material storage device, and the stirring device is rotationally connected to the driving device.

3. The blowing device according to claim 2, characterized in that, The conveying device is fixedly installed on the support device; the conveying device includes a first conveying pipe and a second conveying pipe; the first conveying pipe communicates with the bottom of the material storage device.

4. The blowing device according to claim 3, characterized in that, A transmission screw for conveying materials is arranged in the first conveying pipe, and the transmission screw is rotationally connected to the driving device.

5. The blowing device according to claim 4, characterized in that, A storage bucket is provided between the first conveying pipe and the second conveying pipe, and the first conveying pipe, the storage bucket and the second conveying pipe are connected and communicated; the injection mechanism is arranged at one end of the second conveying pipe; the second conveying pipe is connected to the feed pipe of the injection mechanism and is communicated with the feed pipe.

6. The blowing device according to claim 1, characterized in that, A feeding port for adding materials is provided at the top of the material storage device, and a dust removal bag for preventing dust from rising when adding materials is provided.

7. A combustion furnace is installed with a blowing device according to any one of claims 1-6.

8. A method for blowing secondary aluminum ash into a furnace for treatment, characterized in that, Adopting a spraying device as described in any one of claims 1-6, the specific steps include: Step 1, conveying and storing secondary aluminum ash: conveying secondary aluminum ash into the material storage device for storage; Step 2, sensing to start and stop conveying: stopping or continuing to convey secondary aluminum ash according to the sensor signal; Step 3, stirring secondary aluminum ash: stirring the secondary aluminum ash in the material storage device to prevent the secondary aluminum ash from agglomerating; Step 4, transmitting secondary aluminum ash: conveying the secondary aluminum ash from the first conveying pipe to the second conveying pipe, and then entering the injection mechanism; Step 5, adding a power source: connecting compressed air into the power device, and adjusting the size of the compressed air through the precision pressure regulating valve; Step 6, spraying secondary aluminum ash: discharging compressed air, and the compressed air sprays the secondary aluminum ash in the injection mechanism into the combustion furnace in a spray form for combustion reaction.

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