Waste heat boiler ash discharge device for hazardous waste incineration
By designing the screening section, screening section and receiving section of the waste heat boiler ash discharge device, the sorting of ash slag, metal and uncombustible substances is realized, and the problems of easy blockage and difficulty in sorting of ash discharge devices in the prior art are solved, reducing costs and improving environmental protection.
Patent Information
- Application Number
- CN202420524194.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-19
- Publication Date
- 2025-04-25
- Estimated Expiration
- 2034-03-19
AI Technical Summary
There are unburned substances and debris in the ash slag after the incineration of existing hazardous waste, which makes the ash discharge device easy to be blocked and cannot be directly sorted and processed, requiring additional recycling and incineration.
A waste heat boiler ash discharge device is designed, including a screening section, a screening section and a receiving section. Small-sized ash slag is screened through the vibration of the screening section, the gravity of the screening section and the electromagnet are screened for metal and uncombustible matter, and collected in the receiving section.
The sorting of ash slag, metal and uncombustible substances is realized, avoids blockage during ash delivery process, reduces manual recycling costs, and is green and environmentally friendly.
Smart Images
Figure CN222799022U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of hazardous waste treatment, in particular to an ash discharging device of a waste heat boiler used for incinerating hazardous waste. Background Art
[0002] After incineration, hazardous waste is turned into ash and discharged from the ash outlet of the waste heat boiler. The ash is usually discharged through a Jiaolong conveying device. However, due to the complex composition of hazardous waste, there will be some unburned materials in the ash after incineration, such as metals or other objects that have been agglomerated and not fully burned. These ash mixed together will not only easily cause blockage of the Jiaolong conveying device, but also the ash containing debris cannot be directly landfilled. It is necessary to pick out the metal for recycling and pick out the unburned materials for incineration again. This requires an ash discharge device that is convenient for ash discharge and not easy to be blocked, and can sort the ash during the ash discharge process. Utility Model Content
[0003] In view of the defects of the above-mentioned prior art, the technical problem to be solved by the present invention is how to provide an ash discharging device for a waste heat boiler for incineration of hazardous waste, which can transport the ash discharged from the waste heat boiler and sort the ash.
[0004] The utility model solves the above-mentioned technical problem through a technical solution: an ash discharging device for a waste heat boiler for incineration of hazardous waste, the ash discharging device being arranged at the ash outlet of the waste heat boiler, the ash discharging device comprising an ash screening section, a screening section and a receiving section which are respectively and sequentially arranged obliquely, the discharge end of the waste heat boiler being connected to the feed end of the ash screening section, the discharge end of the ash screening section being connected to the feed end of the screening section, and the discharge end of the screening section being connected to the feed end of the receiving section.
[0005] Furthermore, the ash screening section is arranged to be inclined downward from the feed end to the discharge end, and the ash screening section includes a first bracket, and an ash screening structure installed on the first bracket, and the ash screening structure vibrates left and right on the first bracket driven by a vibration device; the feed end and the discharge end of the ash screening structure are respectively receiving plates, and an ash screening plate is provided between the two receiving plates, and a first baffle is provided on both sides of the receiving plate and the ash screening plate.
[0006] Furthermore, the ash screening plate includes a plurality of groups of ash screening blocks, and gaps are provided between each of the ash screening blocks.
[0007] Furthermore, the ash screening block includes a horizontal plate parallel to the receiving plate, and a vertical plate vertically connected to the horizontal plate.
[0008] Furthermore, the ash screening block includes a horizontal plate tilted relative to the receiving plate, and a vertical plate connected to the horizontal plate and arranged vertically.
[0009] Further, the downward inclination angle of the screening section is smaller than the downward inclination angle of the ash screening section, and the screening section is inclined to the left or right.
[0010] Furthermore, the screening section includes a second bracket and a screening structure installed on the second bracket, and the screening structure vibrates left and right on the second bracket driven by the vibration device; the screening structure includes second baffles on both sides and a vibration plate between the two second baffles.
[0011] Furthermore, the receiving section includes a metal receiving structure and a debris receiving structure, the metal receiving structure is arranged at a low position of the discharge end of the vibration plate, and an electromagnet is provided on the upper or lower side of the discharge end of the vibration plate at the low position; the debris receiving structure is arranged at a high position of the discharge end of the vibration plate.
[0012] Furthermore, the downward inclination angle of the metal receiving structure is greater than the downward inclination angle of the vibration plate, and the metal receiving structure is a material guide plate with the same left-right inclination angle as the vibration plate.
[0013] Furthermore, the downward inclination angle of the debris receiving structure is greater than the downward inclination angle of the material guide plate, the debris receiving structure is a feed inclined plate with the same left and right inclination angle as the receiving plate, and the feed inclined plate is staggered under the material guide plate.
[0014] The utility model has the following beneficial effects compared with the prior art: the utility model is a waste heat boiler ash discharging device for hazardous waste incineration, including an ash screening section, a screening section and a receiving section. Ash is screened out in the ash screening section, metals and unburned materials are screened by gravity and electromagnets in the screening section, and metals and unburned materials are collected in the receiving section. The waste heat boiler ash discharging device for hazardous waste incineration of the utility model can sort ash, metals and unburned materials, and the ash discharging and conveying process is not prone to blockage, thereby reducing labor costs and being green and environmentally friendly. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 Schematic diagram of the embodiment of the utility model Figure 1 ;
[0016] Figure 2 Schematic diagram of the embodiment of the utility model Figure 2 ;
[0017] Figure 3 Schematic diagram of the embodiment of the utility model Figure 3 ;
[0018] Figure 4 Schematic diagram of the embodiment of the utility model Figure 4 .
[0019] Figure numerals: 1. ash screening section, 11. first bracket, 12. ash screening structure, 121. receiving plate, 122. ash screening plate, 1221. ash screening block, 12211. horizontal plate, 12212. vertical plate, 123. first baffle, 2. screening section, 21. second bracket, 22. screening structure, 221. second baffle, 222. vibrating plate, 223. electromagnet, 3. receiving section, 31. metal receiving structure, 311. material guide plate, 32. debris receiving structure, 321. material feeding inclined plate DETAILED DESCRIPTION
[0020] The following is a further detailed description of the embodiments of the present invention in conjunction with the accompanying drawings, but the embodiments are not intended to limit the present invention. All similar structures and similar variations of the present invention should be included in the protection scope of the present invention.
[0021] like Figures 1 to 4 As shown, an ash discharging device for a waste heat boiler for incineration of hazardous waste is arranged at the ash discharging port of the waste heat boiler, and comprises an ash screening section 1, a screening section 2 and a receiving section 3 which are arranged in sequence and tilted, respectively, the discharging end of the waste heat boiler is connected to the feeding end of the ash screening section 1, the discharging end of the ash screening section 1 is connected to the feeding end of the screening section 2, and the discharging end of the screening section 2 is connected to the feeding end of the receiving section 3. Small-sized ash discharged from the waste heat boiler is screened out in the ash screening section, and larger metals and unburned materials are screened in the screening section, and the metals and unburned materials are collected in the receiving section 3 respectively.
[0022] Specifically, the ash screening section 1 is arranged to be tilted downward from the feed end to the discharge end, and the ash screening section 1 includes a first bracket 11, and an ash screening structure 12 installed on the first bracket 11, and the ash screening structure 12 vibrates left and right on the first bracket 11 driven by a vibration device; the feed end and the discharge end of the ash screening structure 12 are receiving plates 121 respectively, and an ash screening plate 122 is arranged between the two receiving plates 121, and first baffles 123 are arranged on both sides of the receiving plates 121 and the ash screening plate 122. The ash screening plate 122 includes a plurality of groups of ash screening blocks 1221, and gaps are arranged between each of the ash screening blocks 1221. The ash in the waste heat boiler is discharged and falls on the receiving plate 121 at the feed end. Driven by the vibration device, the ash on the receiving plate 121 is dispersed and moves forward along the ash screening plate 122 under its own gravity. During the moving process, the smaller ash falls through the gaps between the ash screening blocks. A collecting bag can be placed at the lower end of the ash screening plate 122 to hold the small-sized ash that falls. Of course, a material discharge baffle can also be set at the lower end of the ash screening plate 122 to prevent the ash from splashing when it falls.
[0023] For the structure of the ash screening block, such as Figure 2 or Figure 4As shown, the ash screening block 1221 includes a horizontal plate 12211 parallel to the receiving plate 121, and a vertical plate 12212 connected to the horizontal plate 12211 and arranged vertically. Alternatively, the ash screening block 1221 includes a horizontal plate 12211 tilted relative to the receiving plate 121, and a vertical plate 12212 connected to the horizontal plate 12211 and arranged vertically, but the tilting angle of the horizontal plate here should not be too large so as not to affect the vibration and advancement of the ash. The structure of the ash screening block of the utility model is conducive to breaking up the clumps of ash during the vibration and advancement of the ash. The upper horizontal plate 12211 plays a role of colliding with the ash, and the side vertical plate 12212 plays a role of guiding the ash to fall. The ash screening block of the utility model prevents the ash from adhering to metal or other unburned materials, which is convenient for the screening and discharge of the ash.
[0024] After continuous vibration and advancement, the small-sized ash in the ash is discharged, and the unburned metal and unburned materials fall into the screening section 2 during the vibration. The downward inclination angle of the screening section 2 is smaller than the downward inclination angle of the ash screening section 1, and the screening section 2 is tilted to the left or right. Under the action of vibration and self-weight, the screening section tilted to one side concentrates the unburned metal and unburned materials at the low position of the discharge end of the screening section, and uses an electromagnet to adsorb the metal here. The adsorbed metal is concentrated at the low position of the discharge end of the screening section, and the unburned materials here will fall under the action of vibration, thereby separating the metal and the unburned materials. Specifically, the screening section 2 includes a second bracket 21, and a screening structure 22 installed on the second bracket 21, and the screening structure 22 vibrates left and right on the second bracket 21 driven by the vibration device; the screening structure 22 includes second baffles 221 on both sides, and a vibration plate 222 between the two second baffles 221.
[0025] Due to the existence of the electromagnet and the adsorption of metal near the electromagnet, the metal here accumulates to a certain volume, blocking the possibility of unburned materials falling from a low position. Under the action of vibration, the unburned materials can only fall from the other side of the accumulated metal, so the unburned materials fall into the debris receiving structure.
[0026] Regarding the structure of the receiving section, the receiving section 3 includes a metal receiving structure 31 and a debris receiving structure 32. The metal receiving structure 31 is arranged at a low position of the discharge end of the vibration plate 222. An electromagnet 223 is arranged on the upper side or the lower side of the discharge end of the vibration plate 222 at the low position. Figure 2As shown, the electromagnet 223 is arranged at the lower side; the debris receiving structure 32 is arranged at the height of the discharge end of the vibration plate 222. The downward tilt angle of the metal receiving structure 31 is greater than the downward tilt angle of the vibration plate 222, and the metal receiving structure 31 is a guide plate 311 with the same left and right tilt angle as the vibration plate 222. The downward tilt angle of the debris receiving structure 32 is greater than the downward tilt angle of the guide plate 311, and the debris receiving structure 32 is a feed inclined plate 321 with the same left and right tilt angle as the receiving plate 121, and the feed inclined plate 321 is staggered below the feed guide plate 311. Of course, in order to collect metal and unburned materials, a collection bag can be placed at the end of the guide plate 311 and the feed inclined plate 321.
[0027] The waste heat boiler ash discharge device of the utility model is supported by a frame. The structure of the frame is a conventional setting and is not the inventive point of the utility model, so it is not described in the specific implementation mode of the specification, nor is it reflected in the drawings of the specification. Any frame structure that can stably support the above-mentioned ash discharge device and does not hinder the operation of the above-mentioned ash discharge device can be used. The vibration device and electromagnet mentioned in the utility model are also conventional structures in the mechanical field, so they are not described here.
[0028] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that are not conceived through creative work should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope defined in the claims.
Claims
1. An ash discharging device for a waste heat boiler for incineration of hazardous waste, the ash discharging device being arranged at the ash discharging port of the waste heat boiler, characterized in that: The ash discharging device comprises an ash screening section (1), a screening section (2) and a receiving section (3) which are arranged in an inclined manner in sequence, the discharge end of the waste heat boiler is connected to the feed end of the ash screening section (1), the discharge end of the ash screening section (1) is connected to the feed end of the screening section (2), and the discharge end of the screening section (2) is connected to the feed end of the receiving section (3).
2. The ash discharging device of a waste heat boiler for incineration of hazardous waste according to claim 1 is characterized in that: The ash screening section (1) is arranged to be inclined downward from the feed end to the discharge end, and comprises a first bracket (11), and an ash screening structure (12) mounted on the first bracket (11), and the ash screening structure (12) vibrates left and right on the first bracket (11) under the drive of a vibration device; the feed end and the discharge end of the ash screening structure (12) are receiving plates (121) respectively, an ash screening plate (122) is arranged between the two receiving plates (121), and first baffles (123) are arranged on both sides of the receiving plates (121) and the ash screening plate (122).
3. The ash discharging device of a waste heat boiler for incineration of hazardous waste according to claim 2 is characterized in that: The ash screening plate (122) comprises a plurality of groups of ash screening blocks (1221), and gaps are provided between the respective ash screening blocks (1221).
4. The ash discharging device of a waste heat boiler for incineration of hazardous waste according to claim 3 is characterized in that: The ash screening block (1221) comprises a horizontal plate (12211) parallel to the receiving plate (121), and a vertical plate (12212) vertically connected to the horizontal plate (12211).
5. The ash discharging device of a waste heat boiler for incineration of hazardous waste according to claim 3 is characterized in that: The ash screening block (1221) comprises a horizontal plate (12211) tilted relative to the receiving plate (121), and a vertical plate (12212) vertically connected to the horizontal plate (12211).
6. The ash discharging device of a waste heat boiler for incineration of hazardous waste according to claim 4 or 5, characterized in that: The downward inclination angle of the screening section (2) is smaller than the downward inclination angle of the ash screening section (1), and the screening section (2) is inclined to the left or right.
7. The ash discharging device of a waste heat boiler for incineration of hazardous waste according to claim 1 is characterized in that: The screening section (2) comprises a second bracket (21) and a screening structure (22) mounted on the second bracket (21); the screening structure (22) vibrates left and right on the second bracket (21) driven by a vibration device; the screening structure (22) comprises second baffles (221) on both sides and a vibration plate (222) between the two second baffles (221).
8. The ash discharging device of a waste heat boiler for incineration of hazardous waste according to claim 7, characterized in that: The receiving section (3) comprises a metal receiving structure (31) and a debris receiving structure (32); the metal receiving structure (31) is arranged at a low position of the discharge end of the vibration plate (222); an electromagnet (223) is arranged on the upper side or the lower side of the discharge end of the vibration plate (222) at the low position; and the debris receiving structure (32) is arranged at a high position of the discharge end of the vibration plate (222).
9. The ash discharging device of a waste heat boiler for incineration of hazardous waste according to claim 8, characterized in that: The downward tilt angle of the metal receiving structure (31) is greater than the downward tilt angle of the vibration plate (222), and the metal receiving structure (31) is a material guide plate (311) having the same left-right tilt angle as the vibration plate (222).
10. The ash discharging device of a waste heat boiler for incineration of hazardous waste according to claim 8, characterized in that: The downward tilt angle of the debris receiving structure (32) is greater than the downward tilt angle of the material guide plate (311); the debris receiving structure (32) is a material conveying inclined plate (321) having the same left-right tilt angle as the receiving plate (121); and the material conveying inclined plate (321) is staggeredly arranged below the material guide plate (311).