CN110562771A - Ash discharging device for large-fall ash field - Google Patents
Ash discharging device for large-fall ash field Download PDFInfo
- Publication number
- CN110562771A CN110562771A CN201910906499.5A CN201910906499A CN110562771A CN 110562771 A CN110562771 A CN 110562771A CN 201910906499 A CN201910906499 A CN 201910906499A CN 110562771 A CN110562771 A CN 110562771A
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- CN
- China
- Prior art keywords
- ash
- curve
- discharge device
- curved
- large drop
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D88/00—Large containers
- B65D88/54—Large containers characterised by means facilitating filling or emptying
- B65D88/64—Large containers characterised by means facilitating filling or emptying preventing bridge formation
- B65D88/66—Large containers characterised by means facilitating filling or emptying preventing bridge formation using vibrating or knocking devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D90/00—Component parts, details or accessories for large containers
- B65D90/22—Safety features
- B65D90/32—Arrangements for preventing, or minimising the effect of, excessive or insufficient pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D90/00—Component parts, details or accessories for large containers
- B65D90/48—Arrangements of indicating or measuring devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G11/00—Chutes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G65/00—Loading or unloading
- B65G65/30—Methods or devices for filling or emptying bunkers, hoppers, tanks, or like containers, of interest apart from their use in particular chemical or physical processes or their application in particular machines, e.g. not covered by a single other subclass
- B65G65/32—Filling devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G65/00—Loading or unloading
- B65G65/30—Methods or devices for filling or emptying bunkers, hoppers, tanks, or like containers, of interest apart from their use in particular chemical or physical processes or their application in particular machines, e.g. not covered by a single other subclass
- B65G65/34—Emptying devices
- B65G65/40—Devices for emptying otherwise than from the top
- B65G65/42—Devices for emptying otherwise than from the top using belt or chain conveyors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G69/00—Auxiliary measures taken, or devices used, in connection with loading or unloading
- B65G69/18—Preventing escape of dust
- B65G69/181—Preventing escape of dust by means of sealed systems
Abstract
The invention discloses an ash discharging device for a large-fall ash field, and belongs to the field of ash conveying. An ash discharging device for a large-drop-height ash field comprises a receiving hopper, wherein a discharge port of the receiving hopper is provided with a curve ash sliding pipe, a discharge port of the curve ash sliding pipe is provided with a closed bin, the closed bin comprises a cylindrical upper end and an inverted truncated cone-shaped contraction end, and an ash discharging valve is arranged at the bottom of the contraction end; when the ash material in the receiving hopper falls into the curve ash sliding pipe, the ash material falls under the action of gravity and is continuously accelerated, and the falling ash material continuously impacts the inner wall of the curve ash sliding pipe to play a role of deceleration due to the existence of the curve ash sliding pipe, so that the falling speed of the ash material is controlled, the device is of a fully-closed structure, and the condition of flying dust generated in the ash unloading process is avoided; on the other hand, the existence of curve swift current ash pipe makes the ash of whereabouts constantly strike its inner wall and plays the effect of slowing down to control ash falling speed, further reduced the source that the flying dust produced, the speed is too fast when preventing to unload the ash and carry and arouses the ash and slag secondary and fly upward.
Description
Technical Field
The invention belongs to the field of ash conveying, and particularly relates to an ash unloading device for a large-fall ash field.
Background
The domestic ash yard is generally divided into a flat ground ash yard and a valley ash yard, and the flat ground ash yard is generally directly rolled after being conveyed to the ash yard by an automobile. And (5) transporting the automobile to comprehensive utilization users, such as cement factories and building material factories. The condition is suitable for the power plant with better comprehensive utilization condition.
For the valley ash field, a temporary road needs to be arranged in the ash field and is repaired to the valley bottom. Currently, there are mainly the following treatment schemes: one is to transport the car to an ash yard, roll and store. The ash-pulling vehicle is transported from the power plant to an ash field with a certain distance away from the power plant, and the ash field is dumped from the high position of the edge of the ash field. The automobile is directly dumped at the edge of the ash yard in the treatment mode and falls into the ash yard with the depth of dozens of meters, so that a large amount of dust is blown up, and secondary pollution is caused to the surrounding environment; one is that the belt conveyor is conveyed to an ash yard, and is conveyed to a high place at the edge of the ash yard through a horizontal belt conveyor in a multi-stage manner, and directly falls into the bottom of the ash yard through a vertical blanking pipe, so that a large amount of dust flies, and the blanking pipe is greatly abraded; how to reduce fly ash in the ash discharging process becomes a problem to be solved urgently.
Disclosure of Invention
The invention aims to solve the problem of generating a large amount of dust in the dust discharging process and provides an ash discharging device for a large-fall ash field.
In order to achieve the purpose, the invention adopts the following technical scheme to realize the purpose:
The utility model provides an unload grey device for large drop ash field, includes the hopper, and the discharge gate of hopper is equipped with curve swift current ash pipe, and the discharge gate department of curve swift current ash pipe is equipped with closed feed bin, closed feed bin includes the shrink end of cylindric upper end and inverted round platform form, and the bottom of shrink end is equipped with the unloading valve.
Further, the curved ash chute is in a streamline shape.
further, the angle formed by the curved ash chute and the projection of the curved ash chute on the horizontal plane is more than 60 degrees.
Further, the falling speed of the materials in the curve ash chute is below 5 m/s.
furthermore, the curve ash sliding pipe is made of high complex gold steel, and the wall thickness of the pipe is 8 mm.
furthermore, the curved ash sliding pipe is made of Q345 steel, the wall thickness of the pipe is 6mm, and a ceramic lining with the thickness of 8mm is arranged on the inner wall of the pipe.
Further, a scraper conveyor is arranged between the discharge hole of the receiving hopper and the feed inlet of the curved ash sliding pipe.
Furthermore, a vibrator, a continuous material level meter and a high material level switch are arranged on the inner wall of the closed stock bin.
Furthermore, a pressure release valve is arranged on the closed storage bin.
Furthermore, an exhaust filter is arranged at the top of the closed storage bin.
Compared with the prior art, the invention has the following beneficial effects:
The ash discharging device for the large-drop ash field is of a fully-closed structure, so that the condition of flying dust generated in the ash discharging process is avoided; on the other hand, when the ash material in the receiving hopper falls into the curved ash sliding pipe, the ash material continuously accelerates to fall under the action of gravity, and the falling ash material continuously impacts the inner wall of the curved ash sliding pipe to play a role in deceleration, so that the falling speed of the ash material is controlled, the source of flying dust is further reduced, and secondary flying of ash slag caused by too high speed during ash unloading and conveying is prevented;
Furthermore, the curved ash sliding pipe is in a streamline shape, the impact angle between the material flow and the pipe wall can be reduced through simulation, the ash flows along the wall of the material receiving hopper and the wall of the middle transition pipe, and is bunched, and no material scattering condition occurs, so that the dust and material blocking condition, the material flow speed and the material flow condition are reduced in the actual operation;
Furthermore, the angle formed by the curved ash sliding pipe and the projection of the curved ash sliding pipe on the horizontal plane is above 60 degrees, so that the humidity-adjusting ash can be effectively prevented from being adhered to the wall of the silo;
Furthermore, the material speed of any point in the curved ash sliding pipe is controlled to be below 5m/s, so that secondary flying of ash slag caused by too high speed during ash discharging and conveying is prevented;
Furthermore, the curved ash sliding pipe is wear-resistant and impact-resistant, so that the service life of the curved ash sliding pipe is effectively prolonged;
Furthermore, a vibrator is arranged on the inner wall of the closed material bin, and the materials in the material bin are periodically vibrated to prevent hardening;
Furthermore, the continuous material level meter is used for monitoring the material level of the storage bin, and the high material level switch gives an alarm to the high material level of the storage bin;
Furthermore, the pressure relief valve performs overpressure protection on the pressure in the storage bin, and the exhaust filter filters flying dust in the storage bin and then discharges clean air.
drawings
FIG. 1 is a schematic structural view of example 1;
FIG. 2 is a schematic structural view of a partial structure of the present invention, wherein FIG. 2(a) is a front view and FIG. 2(b) is a side view;
Fig. 3 is a schematic structural diagram of embodiment 2 of the present invention.
Wherein: 1-a receiving hopper; 2-a scraper conveyor; 3-curve ash sliding pipe; 4-a storage bin; 5-an ash discharge valve; 6-a vibrator; 7-a pressure relief valve; 8-an exhaust gas filter; 9-a continuous level gauge; 10-high level gauge.
Detailed Description
in order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, 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 invention.
it should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
The invention is described in further detail below with reference to the accompanying drawings:
Referring to fig. 1, fig. 1 is a schematic structural view of embodiment 1 of the present invention; the receiving hopper 1 receives materials to be conveyed, a material inlet of the receiving hopper 1 is flush with a conveying road of a valley ash field, a conveying vehicle pours the materials into the receiving hopper 1, the scraper conveyor 2 conveys the materials collected by the receiving hopper to the curved ash sliding pipe 3, and the materials in the curved ash sliding pipe 3 are conveyed to a valley bottom section from a mountain top under the action of gravity; the storage bin 4 stores materials conveyed by the curve ash sliding pipe 3, an ash discharging valve 5 at the bottom of the storage bin 4 discharges ash to the materials, and a dump truck or other conveying equipment discharged into an ash yard transports the materials; the vibrator 6 regularly vibrates the materials in the bin to prevent hardening; the pressure relief valve 7 performs overpressure protection on the pressure in the storage bin; the exhaust filter 8 filters flying dust in the storage bin and then exhausts clean air; the continuous level meter 9 monitors the level of the material in the material bin; the high material level switch 10 gives an alarm to the high material level of the storage bin and is interlocked with a start-stop switch of the scraper conveyor in a control room; when the material triggers a high material level alarm, the scraper conveyor stops conveying the material. The model of the continuous level indicator 9 is SP-ADL, and the model of the high level switch 10 is HF-ZX; manual inspection doors are arranged on the curved ash sliding pipes 3 at intervals of no more than 15m and are used for inspecting whether ash is discharged smoothly and conveniently cleaning when blockage occurs; the material speed of any point in the curved ash sliding pipe 3 is below 5m/s, so that the ash residue is prevented from flying up for the second time due to the over-high speed during ash unloading and conveying.
Referring to fig. 2, a partial structure of the present invention is schematically illustrated, wherein fig. 2(a) is a front view and fig. 2(b) is a side view; as can be seen from figure 2(a), the receiving hopper 1 is directly communicated with the curved ash sliding pipe 3, and figure 2(b) shows that the included angle between the inclined receiving surface and the horizontal plane is 60 degrees, so that the arrangement can effectively prevent wet ash from being bonded on the wall of the silo.
Referring to fig. 3, fig. 3 is a schematic structural diagram of embodiment 2 of the present invention, and is different from embodiment 1 in that a receiving hopper 1 is directly communicated with a curved ash chute 3 to meet different ash discharge requirements.
A plurality of curve ash sliding pipes can be arranged between the receiving hopper and the closed storage bin, and when a certain pipe is plated or damaged, the other curve ash sliding pipes are put into operation continuously.
the above-mentioned contents are only for illustrating the technical idea of the present invention, and the protection scope of the present invention is not limited thereby, and any modification made on the basis of the technical idea of the present invention falls within the protection scope of the claims of the present invention.
Claims (10)
1. The utility model provides an unload grey device for large drop ash field, its characterized in that, includes hopper (1), and the discharge gate of hopper (1) is equipped with curve swift current ash pipe (3), and the discharge gate department of curve swift current ash pipe (3) is equipped with closed feed bin (4), closed feed bin (4) are equipped with unloading valve (5) including the shrink end of cylindric upper end and inverted round platform form, the bottom of shrink end.
2. The ash discharge device for large drop ash fields according to claim 1, characterized in that the curved ash chute (3) is streamlined.
3. The ash discharge device for large drop ash fields according to claim 1, characterized in that the angle formed by the curved ash chute (3) itself and its projection on the horizontal plane is above 60 °.
4. The ash discharge device for large drop ash fields according to claim 1, characterized in that the falling speed of the material in the curved ash chute (3) is below 5 m/s.
5. the ash discharge device for large drop ash fields according to claim 1, characterized in that the curved ash chute (3) is made of high complex gold steel with a wall thickness of 8 mm.
6. The ash discharge device for large drop height ash fields according to claim 1, characterized in that the curved ash chute (3) is made of Q345 steel, the wall thickness of the tube is 6mm, and a ceramic lining with the thickness of 8mm is arranged on the inner wall of the tube.
7. the ash discharge device for large drop ash fields according to claim 1, characterized in that a scraper conveyor (2) is arranged between the discharge opening of the receiving hopper (1) and the feed opening of the curved ash chute (3).
8. The ash discharge device for the large-fall ash field according to claim 1, characterized in that a vibrator (6), a continuous level meter (9) and a high level switch (10) are arranged on the inner wall of the closed storage bin (4).
9. The ash discharge device for large drop ash fields according to claim 1, characterized in that the closed silo (4) is provided with a pressure relief valve (7).
10. the ash discharge device for large drop ash fields according to claim 9, characterized in that the top of the closed silo (4) is provided with an exhaust filter (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910906499.5A CN110562771A (en) | 2019-09-24 | 2019-09-24 | Ash discharging device for large-fall ash field |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910906499.5A CN110562771A (en) | 2019-09-24 | 2019-09-24 | Ash discharging device for large-fall ash field |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110562771A true CN110562771A (en) | 2019-12-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910906499.5A Pending CN110562771A (en) | 2019-09-24 | 2019-09-24 | Ash discharging device for large-fall ash field |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110562771A (en) |
Citations (7)
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|---|---|---|---|---|
| CN2782197Y (en) * | 2004-12-29 | 2006-05-24 | 贵阳铝镁设计研究院 | Appts for recovering dust of collecting and dusting system |
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| CN203922126U (en) * | 2014-06-30 | 2014-11-05 | 安徽欣创节能环保科技股份有限公司 | A kind ofly unload ash and pneumatic ash conveying plant for mobile monomer dust collector ash hopper on the groove of ore deposit |
| CN104404199A (en) * | 2014-10-20 | 2015-03-11 | 无锡泓成环境科技有限公司 | Converter one-time dry method dedusting evaporating cooling tower crude ash pneumatic conveying method under full-working condition |
| CN205932463U (en) * | 2016-08-04 | 2017-02-08 | 云南建工集团曲靖建材有限公司 | Cement powder conveyor |
| CN109908680A (en) * | 2017-12-13 | 2019-06-21 | 湘潭县富民小型插秧机制造厂 | Two-stage wind locking apparatus for ash discharge mouth |
| CN210709778U (en) * | 2019-09-24 | 2020-06-09 | 中国电力工程顾问集团西北电力设计院有限公司 | Ash discharging device for large-fall ash field |
-
2019
- 2019-09-24 CN CN201910906499.5A patent/CN110562771A/en active Pending
Patent Citations (7)
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| CN205932463U (en) * | 2016-08-04 | 2017-02-08 | 云南建工集团曲靖建材有限公司 | Cement powder conveyor |
| CN109908680A (en) * | 2017-12-13 | 2019-06-21 | 湘潭县富民小型插秧机制造厂 | Two-stage wind locking apparatus for ash discharge mouth |
| CN210709778U (en) * | 2019-09-24 | 2020-06-09 | 中国电力工程顾问集团西北电力设计院有限公司 | Ash discharging device for large-fall ash field |
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