CN218404047U - Uniform material distribution device and feeding device for fixed bed gasification bed - Google Patents
Uniform material distribution device and feeding device for fixed bed gasification bed Download PDFInfo
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- CN218404047U CN218404047U CN202222728769.8U CN202222728769U CN218404047U CN 218404047 U CN218404047 U CN 218404047U CN 202222728769 U CN202222728769 U CN 202222728769U CN 218404047 U CN218404047 U CN 218404047U
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Abstract
The utility model belongs to the technical field of pyrolysis gasifier. The uniform distribution device comprises a fixed support, a primary material distribution disc, a secondary material distribution disc and a conical cap, wherein the primary material distribution disc is arranged at the top of the fixed support and is in a frustum shape, and the middle part of the primary material distribution disc is of a hollow structure which is communicated up and down; the secondary material distribution disc is arranged at the bottom of the fixed support and is in a frustum shape, and the middle part of the secondary material distribution disc is of a hollow structure which is communicated up and down; the conical cap is arranged in the middle of the secondary material distribution disc; one-level divides charging tray, second grade to divide charging tray and awl cap coaxial arrangement, and the one-level divides the lower extreme external diameter size of charging tray and second grade to divide the charging tray all to be greater than the external diameter size of respective upper end. Also discloses a fixed bed gasification bed feeding device. This application can carry out equally dividing of material according to the funnel flow state in feeding surge bin to satisfy the even cloth and the feeding of fixed bed gasification bed, improve the homogeneity of cloth, effectively reduce the difference in height of charge level.
Description
Technical Field
The utility model belongs to the technical field of pyrolysis gasifier, concretely relates to even distributing device of fixed bed gasification bed and feed arrangement.
Background
The sludge pyrolysis gasifier is one of main devices of a sludge pyrolysis gasification project, and plays an important role in the sludge pyrolysis gasification project. The experimental operation of the gasification furnace shows that in the use process of the gasification furnace feeding device, the sludge particle raw materials are unevenly distributed in the furnace after passing through the discharging device, so that the gasification furnace has the problem of fire bias in the operation process.
Sludge granules get into the surge bin through conveyor belt, then get into the gasifier through the surge bin, and original even distributing device mainly realizes through umbrella-type distributing disk and agitator, but the inhomogeneous phenomenon of sludge granules unloading appears in the operation in-process. The problems are difficult to effectively solve. Due to the design of the umbrella-shaped material distribution disc, sludge particles impact the material distribution disc in the falling process without clear regularity, so that the falling height is unequal, the highest falling height is 30-50 cm, and the gas distribution uniformity is seriously influenced. The stirrer is mainly used for uniformly distributing materials, but the rotation of the distributing disk and the control of a feeding falling point cannot be effectively matched in the using process, so that sludge particles are scattered unevenly, and meanwhile, the target teeth also become sludge coking attachment points. More serious defects are that circulating water is needed, which causes large energy consumption, complex equipment, high investment cost, large sealing difficulty, poor surrounding environment and the like.
Chinese patent CN202010503373.6 discloses a rotary distributing dry-type slagging domestic garbage pyrolysis gasifier, through setting up a distributing gear motor, the output end of the distributing gear motor can drive a sprocket, a transmission special-shaped chain, an inner water seal groove, a lower charging barrel and a lower chute to rotate, and the material inside the upper charging barrel is uniformly sprinkled into the furnace body of the gasifier along with the rotation of the lower chute, so as to form a material layer with uniform thickness, thereby solving the problem of non-uniform distributing of the traditional gasifier. The uniformity of blanking can not be effectively controlled by the cloth of the rotary cloth disc, the effect is not ideal, the problems are basically the same as those of the common cloth disc, and although improvement is provided, the essence is not broken through.
Chinese patent CN201510349512.3 discloses a distributing device of a refuse pyrolysis gasifier, which is suitable for distributing refuse derived fuel RDF, and can realize an integrated operation process of feeding and distributing, and improve the quality of refuse pyrolysis gasification. But the cloth mode of this structure adopts the sieve mesh to carry out the cloth, and the cloth effect is unsatisfactory, is difficult to ensure the homogeneity behind the cloth, because the blanking mouth at middle part exists, piles up easily at the middle part and be the toper.
The blanking uniformity determines the running stability of the sludge pyrolysis gasification process to a great extent, so that the study on a blanking uniformity device and a structure optimization technology of a fixed bed gasification furnace has a positive propulsion effect on the structure upgrade of the fixed bed gasification device. Therefore, a new structural design is required for the material distribution and blanking structure of the gasification furnace, so as to improve the material distribution uniformity and optimize the working state of the gasification furnace.
Disclosure of Invention
The utility model discloses the purpose is to the problem that the aforesaid exists and not enough, provides an even distributing device of fixed bed gasification bed and feed arrangement, and its structural design is reasonable, can carry out equally dividing of material according to the funnel flow state of feeding surge bin to satisfy the even cloth and the feeding of fixed bed gasification bed, improve the homogeneity of cloth, effectively reduce the difference in height of charge level.
In order to realize the purpose, the technical scheme is as follows:
the utility model provides a fixed bed gasification bed uniform material distribution device, includes:
a fixed bracket;
the primary distributing disc is arranged at the top of the fixed support and is in a frustum shape, and the middle part of the primary distributing disc is of a hollow structure which is communicated up and down;
the secondary material distribution disc is arranged at the bottom of the fixed support and is in a frustum shape, and the middle part of the secondary material distribution disc is of a hollow structure which is communicated up and down; and
the conical cap is conical and is arranged in the middle of the secondary material distribution disc;
one-level divides charging tray, second grade to divide charging tray and awl cap coaxial arrangement, the lower extreme external diameter size that one-level divides charging tray and second grade to divide the charging tray all is greater than the external diameter size of respective upper end.
The beneficial effects are that: the primary material distribution disc is mainly designed according to the flow state of the upper buffer bin, the initial state of the feeding buffer bin is used as a funnel flow, falling materials are equally divided for one time, and meanwhile, the relative heights of the primary material distribution disc and the feeding buffer bin and the taper of the material distribution disc determine the state of particles; the secondary material distribution disc can perform secondary equal distribution on particles flowing on the inner side of the primary material distribution disc on one hand, and can perform primary equal distribution on materials falling under the friction action of the side wall of the feeding pipe on the lower portion of the feeding buffer bin on the other hand; the conical cap can evenly divide the surface area of the particles in the central area.
According to the utility model discloses even distributing device of fixed bed gasification bed, preferably, the internal diameter size of second grade branch charging tray upper end is greater than the external diameter size of the lower extreme of one-level branch charging tray.
This application is injectd to the size of different branch charging trays to the effect is equallyd divide to better guarantee.
According to the utility model discloses even distributing device of fixed bed gasification bed, preferably, the one-level divide the charging tray with be provided with first regulating element between the fixed bolster, first regulating element adjusts the one-level divides the charging tray for the height of second grade branch charging tray.
According to the utility model discloses even distributing device of fixed bed gasification bed, preferably, first regulating unit is including setting up a plurality of fixed plates on the fixed bolster, seting up adjustment tank, setting on the fixed plate are in a plurality of connecting plates on the one-level branch charging tray, be provided with the connecting hole that corresponds with the adjustment tank on the connecting plate, the connecting plate with the fixed plate passes through bolted connection fixedly.
According to the utility model discloses even distributing device of fixed bed gasification bed, preferably, first regulating unit is including setting up a plurality of otic placodes of one-level branch charging tray circumference and setting are in each vertical screw rod on the otic placode, be provided with the through-hole that corresponds with each vertical screw rod on the fixed bolster, all be provided with on the vertical screw rod of the upper and lower both sides of through-hole and set up the nut.
Two different structural style to first regulating unit explain in above-mentioned structure to optimize the structure of product, conveniently carry out the adjustment of homocline effect, the practicality is better, and the assembly is more reliable convenient.
According to the utility model discloses even distributing device of fixed bed gasification bed, preferably, the awl cap with be provided with second regulating element between the fixed bolster, second regulating element is used for adjusting the awl cap for the height of second grade branch charging tray.
According to the utility model discloses even distributing device of fixed bed gasification bed, preferably, the second regulating unit is including setting up the lead screw and the fixed setting of awl cap lower extreme are in the screw at fixed bolster lower extreme middle part, the lead screw with screw accordant connection.
The structure of the second adjusting unit is explained by the structure, so that the height of the conical cap can be conveniently adjusted according to the distribution situation of the material surface area at the bottom end, the distribution situation of the material is changed, the height of the first-level material distribution disc and the conical cap can be adjusted, the height between the first-level material distribution disc, the second-level material distribution disc and the conical cap can be effectively adjusted, the flexibility is higher, and the application effect is better.
According to the utility model discloses even distributing device of fixed bed gasification bed, preferably, the fixed bolster includes the connection pad and is that the circumference equipartition sets up a plurality of side extension boards of connection pad lower part are a plurality of connect through the reinforcing plate between the side extension board.
In the structure, the upper connecting disc can be used as a flange plate for fixing, so that the upper connecting disc and the fixed bed gasification bed are conveniently assembled together, the side supporting plates can be designed to avoid the influence on the distribution of materials, and the volume of the fixing support is relatively smaller.
A fixed bed gasification bed feed apparatus comprising:
the feeding buffer bin is in an inverted cone shape, and a cylindrical feeding pipe is arranged at the lower end of the feeding buffer bin;
the chamber shell is arranged at the lower part of the feeding buffer bin and is communicated with the feeding pipe; and
according to the uniform material distribution device for the fixed bed gasification bed, the first-stage material distribution disc is correspondingly distributed in the feeding pipe, and the second-stage material distribution disc is correspondingly distributed in the cavity shell.
The distribution device can be arranged according to the structural form of the fixed bed gasification bed, so that the flow of materials is improved and uniform distribution is realized by relying on the original equipment structure.
According to the utility model discloses fixed bed gasification bed feed arrangement, preferably, the upper end of fixed bolster is fixed through the ring flange between inlet pipe and the cavity casing. The design of the structure is that the flange is equal to the upper connecting disc.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments of the present invention will be briefly described below. The drawings are intended to depict only some embodiments of the invention, and not all embodiments of the invention should be limited thereto.
Fig. 1 is a schematic perspective view of a uniform distribution device of a fixed bed gasification bed according to an embodiment of the present invention.
Fig. 2 is a schematic front view of the uniform distribution device of the fixed bed gasification bed according to the embodiment of the present invention.
Fig. 3 is a schematic view of the installation structure of the cone cap and the fixing bracket according to the embodiment of the present invention.
Fig. 4 is a schematic structural diagram of a fixed bed gasification bed feeding device according to an embodiment of the present invention.
Fig. 5 is a schematic diagram of scattering of uniform material distribution in an embodiment of the present invention.
Sequence numbers in the figure:
100 is a fixed bracket, 101 is an upper connecting disc, 102 is a side support plate, and 103 is a reinforcing plate;
210 is a first-level material distribution disc, 220 is a second-level material distribution disc, and 230 is a conical cap;
301 is a fixing plate, 302 is a connecting plate, 303 is an adjusting groove, 304 is a screw rod, and 305 is a nut;
401 is a feed surge bin, 402 is a chamber housing, 403 is a feed tube.
Detailed Description
The embodiments of the present invention will be described more fully hereinafter with reference to the accompanying drawings, in which embodiments of the invention are shown. Unless defined otherwise, technical or scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
In the description of the present invention, it is to be understood that the terms "first," "second," and the like are used for describing various elements of the present invention, and do not denote any order, quantity, or importance, but rather are used to distinguish one element from another.
It should be noted that when an element is referred to as being "connected," "coupled," or "connected" to another element, it can be directly connected, coupled, or connected, but it should be understood that intervening elements may be present therebetween; i.e., positional relationships encompassing both direct and indirect connections.
It should be noted that the use of "a" or "an" and similar referents does not necessarily imply a limitation on the number. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items.
It is noted that terms indicating orientation or positional relationship, such as "upper", "lower", "left", "right", and the like, are used only for indicating relative positional relationship, which is for convenience in describing the present invention, and not that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation; when the absolute position of the object to be described is changed, the relative positional relationship may also be changed accordingly.
Referring to fig. 1 to 4, the application discloses a uniform material distribution device for a fixed bed gasification bed, which comprises a fixed support 100, a primary material distribution disc 210, a secondary material distribution disc 220 and a conical cap 230, wherein the primary material distribution disc 210 is arranged at the top of the fixed support 100, the primary material distribution disc 210 is in a frustum shape, and the middle part of the primary material distribution disc 210 is in a hollow structure which is communicated up and down; the secondary distribution plate 220 is arranged at the bottom of the fixed support 100, the secondary distribution plate 220 is in a frustum shape, and the middle part of the secondary distribution plate 220 is of a hollow structure which is communicated up and down; the conical cap 230 is conical, and the conical cap 230 is arranged in the middle of the secondary distribution disc 220; the first-level distributing plate 210, the second-level distributing plate 220 and the conical caps 230 are coaxially arranged, and the outer diameter of the lower end of each of the first-level distributing plate 210 and the second-level distributing plate 220 is larger than that of the upper end of each of the first-level distributing plate and the second-level distributing plate.
The primary material distribution disc 210 in the embodiment is mainly designed according to the flow state of the upper buffer bin, the initial state of the feeding buffer bin is used as a funnel flow, falling materials are equally divided for one time, and the relative heights of the primary material distribution disc and the feeding buffer bin and the taper of the material distribution disc determine the state of particles; the secondary material distribution disc can perform secondary equal distribution on particles flowing on the inner side of the primary material distribution disc on one hand, and can perform primary equal distribution on materials falling under the friction action of the side wall of the feeding pipe on the lower portion of the feeding buffer bin on the other hand; the conical cap can evenly divide the surface area of the particles in the central area.
Further, the inner diameter of the upper end of the secondary material distribution disc 220 in this embodiment is larger than the outer diameter of the lower end of the primary material distribution disc 210. This application is injectd to the size of different branch charging trays to the effect is equallyd divide to better guarantee, and the second grade branch charging tray of this application mainly is the secondary aliquot to the inboard material that flows of one-level branch charging tray, and consequently the injecture of corresponding size of a dimension is more reasonable.
In order to realize the adjustment of the relative height of one-level minute charging tray, second grade minute charging tray and awl cap three, the one-level minute charging tray 210 of this application with be provided with first regulating unit between the fixed bolster 100, first regulating unit adjusts the one-level minute charging tray 210 for the height of second grade minute charging tray 220. A second adjusting unit is arranged between the cone cap and the fixing support and used for adjusting the height of the cone cap 230 relative to the secondary material distribution disc.
For the structure of the first adjusting unit, the application provides different embodiments:
the first embodiment of the first adjusting unit is as follows: first regulating unit is including setting up a plurality of fixed plates 301 on the fixed bolster 100, offer and be in adjustment tank 303 on the fixed plate 301, setting are in a plurality of connecting plates 302 on the one-level depiler dish 210, be provided with the connecting hole that corresponds with adjustment tank 303 on the connecting plate 302, the connecting plate 302 with fixed plate 301 passes through bolted connection fixedly.
The second embodiment of the first adjusting unit is as follows: the first adjusting unit comprises a plurality of lug plates and vertical screw rods, the lug plates are arranged in the circumferential direction of the one-level distributing disc, the vertical screw rods are arranged on the lug plates, through holes corresponding to the vertical screw rods are formed in the fixed support, and fastening nuts are arranged on the vertical screw rods on the upper side and the lower side of each through hole.
Two different structural style to first regulating unit explain in above-mentioned structure to optimize the structure of product, conveniently carry out the adjustment of homocline effect, the practicality is better, and the assembly is more reliable convenient. The present application preferably adopts the structure of the first embodiment of the first adjustment unit.
The second adjusting unit in this embodiment includes a screw 304 disposed at the lower end of the conical cap 230 and a nut 305 fixedly disposed at the middle of the lower end of the fixing bracket, and the screw 304 is connected with the nut 305 in a matching manner. The height of the conical cap can be flexibly adjusted through the matching of the screw rod and the screw nut.
The structure of the second adjusting unit is explained by the structure, so that the height of the conical cap can be conveniently adjusted according to the distribution situation of the material surface area at the bottom end, the distribution situation of the material is changed, the height of the first-level material distribution disc and the conical cap can be adjusted, the height between the first-level material distribution disc, the second-level material distribution disc and the conical cap can be effectively adjusted, the flexibility is higher, and the application effect is better.
The fixing support 100 in the embodiment includes an upper connecting disc 101 and a plurality of side support plates 102 uniformly distributed on the lower portion of the connecting disc in a circumferential manner, the side support plates are connected through a reinforcing plate 103, as shown in the figure, a nut is fixed at the center of the bottom of the fixing support, and each side support plate is connected with the nut through the reinforcing plate, so that the stability of the whole structure is guaranteed, and excessive interference of the fixing support on the running track of materials is avoided.
In the structure, the upper connecting plate 101 can be integrally assembled and fixed as a flange plate, so that the upper connecting plate and the fixed bed gasification bed are conveniently assembled together, the side supporting plates can be designed to avoid the influence on the distribution of materials, and the volume of the fixing support is relatively smaller.
As shown in fig. 4, the application also discloses a fixed bed gasification bed feeding device, which comprises a feeding buffer bin 401, a chamber shell 402 and the fixed bed gasification bed uniform distribution device, wherein the feeding buffer bin 401 is in an inverted cone shape, and the lower end of the feeding buffer bin 401 is provided with a cylindrical feeding pipe 403; the chamber housing 402 is disposed at the lower portion of the feed buffer bin 401 and communicates with the feed pipe 403; the first-stage material distribution disc 210 is correspondingly arranged in the feeding pipe 403, and the second-stage material distribution disc 220 is correspondingly arranged in the cavity shell 402.
The distribution device can be arranged according to the structural form of the fixed bed gasification bed, so that the flow of materials is improved and uniform distribution is realized by relying on the original equipment structure.
The upper end of the stationary support 100 of the present application is secured between the feed tube 403 and the chamber housing 402 by a flange. The flange plate in the design of the structure is equal to the upper connecting disc 101, and the assembly of the whole structure is realized.
In the working process, the materials fall from the feeding pipe after passing through the feeding buffer bin, and are equally divided on one side through the primary material distribution plate, the materials separated from the outer side of the primary material distribution plate fall downwards in a dispersing way, and a part of the materials fall under the friction action of the side wall of the feeding pipe and are further equally divided through the secondary material distribution plate; the materials falling from the middle part of the first-level material distribution disc are equally distributed through the conical caps and the second-level material distribution disc, so that the blanking in the barrier area is uniform and consistent, and the structure is shown in figure 5. The adaptability adjustment can be carried out to the height of one-level branch charging tray and cone cap according to the condition of blanking to realize better effect, accomplish the adaptation with the existing equipment.
While the above description has described in detail the preferred embodiments for carrying out the invention, it should be understood that these embodiments are presented by way of example only, and are not intended to limit the scope, applicability, or configuration of the invention in any way. The scope of the invention is defined by the appended claims and equivalents thereof. Many modifications may be made to the foregoing embodiments by those skilled in the art in light of the teachings of the present disclosure, and such modifications are intended to be within the scope of the present disclosure.
Claims (10)
1. The utility model provides a fixed bed gasification bed uniform material distribution device which characterized in that includes:
fixing a bracket;
the primary distributing disc is arranged at the top of the fixed support and is in a frustum shape, and the middle part of the primary distributing disc is of a hollow structure which is communicated up and down;
the secondary material distribution disc is arranged at the bottom of the fixed support and is in a frustum shape, and the middle part of the secondary material distribution disc is of a hollow structure which is communicated up and down; and
the conical cap is conical and is arranged in the middle of the secondary material distribution disc;
one-level divides charging tray, second grade to divide charging tray and awl cap coaxial arrangement, the lower extreme external diameter size that one-level divides charging tray and second grade to divide the charging tray all is greater than the external diameter size of respective upper end.
2. The fixed bed gasification bed uniform distribution device according to claim 1, wherein the inner diameter of the upper end of the secondary distribution plate is larger than the outer diameter of the lower end of the primary distribution plate.
3. The fixed bed gasification bed uniform distribution device according to claim 1, wherein a first adjusting unit is arranged between the primary distribution plate and the fixed bracket, and the first adjusting unit adjusts the height of the primary distribution plate relative to the secondary distribution plate.
4. The fixed bed gasification bed uniform distribution device according to claim 3, wherein the first adjusting unit comprises a plurality of fixed plates arranged on the fixed support, adjusting grooves arranged on the fixed plates, and a plurality of connecting plates arranged on the primary distributing tray, wherein the connecting plates are provided with connecting holes corresponding to the adjusting grooves, and the connecting plates and the fixed plates are fixedly connected through bolts.
5. The fixed bed gasification bed uniform distribution device according to claim 3, wherein the first adjusting unit comprises a plurality of lug plates arranged on the circumference of the primary distributing disc and vertical screw rods arranged on each lug plate, through holes corresponding to the vertical screw rods are arranged on the fixed support, and fastening nuts are arranged on the vertical screw rods on the upper side and the lower side of each through hole.
6. The fixed bed gasification bed uniform distribution device according to any of claims 1 to 5, wherein a second adjusting unit is arranged between the cone cap and the fixed support, and the second adjusting unit is used for adjusting the height of the cone cap relative to the secondary distribution disc.
7. The fixed bed gasification bed uniform distribution device according to claim 6, wherein the second adjusting unit comprises a screw rod arranged at the lower end of the cone cap and a nut fixedly arranged in the middle of the lower end of the fixed support, and the screw rod is connected with the nut in a matching way.
8. The fixed bed gasification bed uniform distribution device as recited in claim 1, wherein the fixed support comprises an upper connecting disc and a plurality of side support plates which are uniformly distributed on the circumference of the lower part of the connecting disc, and the side support plates are connected with each other through a reinforcing plate.
9. A fixed bed gasification bed feed arrangement, comprising:
the feeding buffer bin is in an inverted cone shape, and a cylindrical feeding pipe is arranged at the lower end of the feeding buffer bin;
the chamber shell is arranged at the lower part of the feeding buffer bin and is communicated with the feeding pipe; and
the fixed bed gasification bed uniform distribution device according to any one of claims 1 to 8, wherein the primary distribution plate is correspondingly arranged in the feed pipe, and the secondary distribution plate is correspondingly arranged in the chamber shell.
10. A fixed bed gasification bed feed arrangement according to claim 9, wherein the upper end of the stationary holder is fixed between the feed pipe and the chamber housing by means of a flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222728769.8U CN218404047U (en) | 2022-10-17 | 2022-10-17 | Uniform material distribution device and feeding device for fixed bed gasification bed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222728769.8U CN218404047U (en) | 2022-10-17 | 2022-10-17 | Uniform material distribution device and feeding device for fixed bed gasification bed |
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| CN218404047U true CN218404047U (en) | 2023-01-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202222728769.8U Active CN218404047U (en) | 2022-10-17 | 2022-10-17 | Uniform material distribution device and feeding device for fixed bed gasification bed |
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| CN (1) | CN218404047U (en) |
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