CN111828990A - Branch pipe type sludge uniform distribution device and garbage incinerator - Google Patents

Abstract

The invention provides a branch pipe type sludge uniform distribution device and a garbage incinerator, wherein the device comprises: the device comprises a main pipeline, a sludge feeding hole is formed in the end part of the main pipeline; the first branch pipelines are communicated with the bottom of the main pipeline and are provided with control valves; and the bottom ends of the second branch pipelines are provided with sludge discharge holes. The branch pipe type sludge uniform distribution device provided by the invention adopts a branch pipe type design, can accurately control sludge distribution, and is beneficial to uniformly scattering sludge in an incineration hearth so that the sludge can be fully dried and combusted.

Description

Branch pipe type sludge uniform distribution device and garbage incinerator

Technical Field

The invention relates to the technical field of waste treatment, in particular to a branch pipe type sludge uniform distribution device and a garbage incinerator.

Background

Sludge is a product after sewage treatment, and is an extremely complex heterogeneous body consisting of organic debris, bacterial cells, inorganic particles, colloids and the like. The main characteristics of the sludge are high water content (up to more than 99 percent), high organic matter content, easy decomposition and stink generation, fine particles, small specific gravity and colloidal liquid state. Sludge is a thick matter between liquid and solid and can be transported by a pump, but is difficult to separate solid from liquid by sedimentation.

The purpose and principle of sludge treatment can be summarized as the following points: firstly, the stabilization treatment not only ensures the treatment effect but also prevents the generation of additional breeding organisms; secondly, harmlessness, namely treatment of harmful substances contained in the waste water; thirdly, the quantity is reduced, and the purpose is to facilitate transportation; and fourthly, making the best use of the resources and reusing the resource content of the materials as much as possible. Incineration treatment is the most thorough treatment method of sludge, and the greatest advantages of incineration treatment are that the sludge can be reduced in volume rapidly and to a greater extent, and no storage equipment is needed under severe weather conditions.

The incineration treatment of the sludge mainly comprises the steps of enabling dewatered sludge to enter a waste incineration power plant, and uniformly scattering the dewatered sludge into a waste incinerator for incineration. At present, a garbage incinerator and sludge incineration system which is low in operation cost, high in combustion efficiency and simple and convenient to control is an urgent key technology needed by a garbage incineration power plant.

Disclosure of Invention

In this summary, concepts in a simplified form are introduced that are further described in the detailed description. This summary of the invention is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to be used as an aid in determining the scope of the claimed subject matter.

Aiming at the defects of the prior art, the embodiment of the invention provides a branch pipe type sludge uniform distribution device, which comprises:

the device comprises a main pipeline, a sludge feeding hole is formed in the end part of the main pipeline;

the first branch pipelines are communicated with the bottom of the main pipeline and are provided with control valves;

and the bottom ends of the second branch pipelines are provided with sludge discharge holes.

Illustratively, the opening direction of the sludge discharge hole is perpendicular to the opening direction of the sludge feed hole.

Illustratively, each of the first branch ducts communicates with four of the second branch ducts.

Illustratively, four second branch pipes are symmetrically distributed on two sides of the axis of the main pipe.

Exemplarily, the branch pipe type sludge uniform distribution device comprises two main pipes which are not communicated with each other, and the sludge feeding hole of each main pipe is arranged at one end far away from the other main pipe.

Illustratively, a sludge through opening is arranged on the second branch pipeline, and the opening direction of the sludge through opening is opposite to the opening direction of the sludge discharge hole.

Illustratively, the second branch pipe includes a bent pipe portion connected to the first branch pipe and a straight pipe portion connected to the bent pipe portion, and the mud passage opening is provided on the bent pipe portion.

Illustratively, the sludge feed port is connected with a sludge conveying pipeline to receive sludge which is not dried from the sludge conveying pipeline.

The embodiment of the invention also provides a garbage incinerator, which comprises a feeding grate, an incineration grate and the branch pipe type sludge uniform distribution device, wherein the feeding grate and the incineration grate are sequentially arranged, and the branch pipe type sludge uniform distribution device is arranged above the feeding grate or the incineration grate.

Illustratively, the axial direction of a main pipe in the branch pipe type sludge uniform distribution device is perpendicular to the feeding direction of the feeding grate.

The branch pipe type sludge uniform distribution device provided by the embodiment of the invention adopts a branch pipe type design, can accurately control sludge distribution, and is beneficial to uniformly scattering sludge in an incineration hearth so that the sludge can be fully dried and combusted. The garbage incinerator of the embodiment of the invention adopts the branch pipe type sludge uniform distribution device, so that the sludge is directly and uniformly distributed above the feeding grate or the incineration grate, the sludge is conveniently and rapidly dried and combusted, and the combustion condition in the incinerator is furthest ensured not to be influenced by the sludge; in addition, because drying equipment is not needed, the sludge is directly distributed into the incinerator for incineration, and the equipment cost is reduced.

Drawings

The following drawings of the invention are included to provide a further understanding of the invention. There are shown in the drawings, embodiments and descriptions thereof, which are used to explain the principles and apparatus of the invention. In the drawings, there is shown in the drawings,

FIG. 1 is an isometric side view of a leg sludge uniform distribution apparatus in an embodiment of the present invention;

FIG. 2 is a side view of a branched sludge uniform distribution apparatus according to an embodiment of the present invention;

FIG. 3 is a front view of a branched sludge uniform distribution apparatus according to an embodiment of the present invention;

FIG. 4 is a top view of a branched sludge uniform distribution apparatus according to an embodiment of the present invention;

fig. 5 is a schematic structural view of a garbage incinerator according to an embodiment of the present invention.

Detailed Description

In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art, that the present invention may be practiced without one or more of these specific details. In other instances, well-known features have not been described in order to avoid obscuring the invention.

In order to thoroughly understand the present invention, detailed steps will be presented in the following description in order to explain the branched sludge uniform distribution apparatus proposed by the present invention. It is apparent that the invention may be practiced without limitation to the specific details known to those skilled in the art. The following detailed description of the preferred embodiments of the invention, however, the invention is capable of other embodiments in addition to those detailed.

It will be understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.

Most of the existing sludge co-processing technologies of waste incineration power plants need to firstly dry sludge and then incinerate the sludge, the investment and operation costs are high, and a drying agent causing secondary pollution is often used in the drying process; or simply putting the sludge dehydrated to the water content of 80% into a hopper chute through a pipeline, pushing the sludge into a garbage incinerator by a feeding grate for incineration, and showing through project operation practices that the sludge not only can influence the combustion condition of the whole incinerator to a great extent, but also has the phenomenon of insufficient incineration of a great proportion of sludge.

Based on the above, the embodiment of the invention provides a novel branch pipe type sludge uniform distribution device, which adopts a branch pipe type design, can accurately control the distribution of sludge, and is beneficial to uniformly scattering the sludge in an incineration hearth so as to fully dry and burn the sludge. The embodiment of the invention also provides a garbage incinerator, which adopts the branch pipe type sludge uniform distribution device to directly and uniformly distribute sludge above the feeding grate or the incineration grate, so that the sludge is conveniently and rapidly dried and combusted, and the combustion condition in the incinerator is furthest ensured not to be influenced by the sludge; in addition, because drying equipment is not needed, the sludge is directly distributed into the incinerator for incineration, and the equipment cost is reduced.

In order to provide a thorough understanding of the present invention, a detailed structure will be set forth in the following description in order to explain the present invention. The following detailed description of the preferred embodiments of the invention, however, the invention is capable of other embodiments in addition to those detailed.

The branch pipe type sludge uniform distribution device of the embodiment of the invention is further explained with the accompanying drawings.

As shown in fig. 1, a branch pipe type sludge uniform distribution apparatus 100 according to an embodiment of the present invention includes: the device comprises a main pipeline 101, wherein a sludge feeding hole is formed in the end part of the main pipeline; a plurality of first branch pipelines 102 communicated with the bottom of the main pipeline 101, wherein control valves 103 are arranged on the first branch pipelines 102; at least two second branch pipelines 104 communicating with the bottom of the first branch pipeline, and the bottom ends of the second branch pipelines 104 are provided with sludge discharge ports.

The branch pipe type sludge uniform distribution device 100 of the embodiment of the invention is communicated with a plurality of first branch pipes 102 at the bottom of a main pipe 101, each first branch pipe 102 is communicated with a plurality of second branch pipes 104, and sludge can be uniformly distributed in a garbage incinerator by adopting a branch pipe type design; meanwhile, the first branch pipeline 102 is provided with the control valve 103, and the scattering position can be controlled by opening and closing the control valve 103, so that the sludge distribution position can be adjusted according to actual working conditions.

Specifically, the main pipe 101 is generally horizontally disposed in the waste incinerator, the axial direction of the main pipe is perpendicular to the feeding direction of the feeding grate in the waste incinerator, and the length of the main pipe 101 is approximately equal to the width of the feeding grate or the incineration grate.

In some embodiments, referring to fig. 1, the main pipe 101 may include two main pipes symmetrically disposed, the two main pipes 101 being disposed on the same axis and not communicating with each other, in consideration of the symmetry of the garbage incinerator. The sludge feed inlet of each main pipe 101 is arranged at an end far from another main pipe 101, for example, the feed inlet of the main pipe 101 at the left side shown in fig. 1 is located at the left side of the main pipe, and the feed inlet of the main pipe 101 at the right side shown in fig. 1 is located at the right side of the main pipe, thereby facilitating the feeding of the main pipe 101.

Illustratively, a sludge feed port at the end of the main pipe 101 is communicated with a sludge conveying pipe for receiving sludge which is not dried. Sludge generated by the landfill leachate treatment station is dehydrated and then stored in a sludge bin, and is conveyed to the sludge feeding hole in a closed manner by adopting a conveying pipeline. The sludge received by the main pipeline 101 is dewatered to about 80% of water content and is not dried by the drying equipment, so that secondary pollution caused by a drying agent in the drying process is avoided, and equipment investment and operation cost are saved.

The bottom of the main pipe 101 is connected to a plurality of first branch pipes 102, and preferably, the plurality of first branch pipes 102 are uniformly arranged to perform uniform distribution perpendicular to the feeding direction. The number and spacing of the first branch pipes 102 may be determined according to the width of the feeding grate or the incineration grate, for example, when two main pipes 101 are provided, the bottom of each main pipe 101 may communicate with 13 first branch pipes 102, but the number is not limited thereto.

The first branch pipe 102 may be provided in a bent shape. Specifically, referring to fig. 3, a first bent portion thereof is inclined downward along the bottom of the main pipe 101 to provide a buffering effect on sludge, and a second bent portion thereof is vertically downward to guide sludge into the second branch pipe 104 communicating at the bottom thereof. Preferably, the first branch duct 102 is located on the same plane as the main duct 101.

Referring to fig. 3, when two main pipes 101 are symmetrically disposed, first branch pipes 102 therebelow are also symmetrically disposed. That is, the first bent portion of the first branch duct 102 below the main duct 101 on the left side is inclined to the lower right, and the first bent portion of the first branch duct 102 below the main duct 101 on the right side is inclined to the lower left, so that a blank region where cloth cannot be distributed is prevented from being formed at an intermediate position of the two main ducts 101.

The first branch pipe 102 is provided with a control valve 103, and the control valve 103 may be disposed at a first bent portion of the first branch pipe 102. Preferably, each first branch pipe 102 is provided with a control valve 103, and whether material distribution is performed through the first branch pipe 102 is determined by opening and closing the control valve 103 provided on each first branch pipe 102. The control valve 103 may be an electric ball valve, and may control the opening and closing of each electric ball valve through a pulse control structure. The control valves 103 may be opened sequentially or simultaneously; only one control valve 103 may be opened at a time, or a plurality of control valves may be opened simultaneously. When trunk line 101 includes two trunk lines 101 that the symmetry set up, the control flap of both sides can the symmetric control open, also can control respectively to open, specifically can adjust in real time according to the burning operating mode of reality.

The bottom of the first branch pipe 102 is communicated with a plurality of second branch pipes 104. Preferably, the bottom of each first branch pipe 102 is communicated with four second branch pipes 104, and the four second branch pipes 104 are symmetrically distributed on two sides of the axis of the main pipe 101, and two second main pipes 104 are respectively distributed on two sides of the axis, see fig. 4 specifically. Through setting up second lateral conduit 104, increased the quantity of discharge gate, make it can be evenly with the scattering in the incinerator of mud "less and thin", make mud need not to carry out mummification in advance and handle, can be in the quick mummification of waste incinerator and burn, guarantee to the utmost that it does not influence the combustion situation in waste incinerator.

In one embodiment, the second branch pipe 104 is further provided with a sludge outlet 105, and the opening direction of the sludge outlet 105 is opposite to the opening direction of the sludge outlet at the bottom of the second branch pipe 104. That is to say, when the opening direction of mud discharge gate is downward, the opening direction of logical mud mouth 105 is upwards to, the opening direction of logical mud mouth 105 and the opening direction of mud discharge gate can set up on same straight line, thereby can lead to mud to second small transfer line 104, avoid the mud siltation.

Further, referring to fig. 2, the second branch pipe 104 includes an elbow part connecting the first branch pipe 102 and a straight pipe part connecting the elbow part, and the mud port 105 may be provided on the elbow part.

In summary, the branch pipe type sludge uniform distribution device provided by the embodiment of the invention adopts a branch pipe type design, can accurately control sludge distribution, and is beneficial to uniformly scattering sludge in an incineration hearth, so that the sludge can be fully dried and combusted.

In another aspect, the present invention provides a garbage incinerator, which may be used for performing collaborative incineration treatment on sludge and domestic garbage. Referring to fig. 5, the garbage incinerator may be a mechanical grate furnace, and includes a feeding port 501, a feeding grate 502, an incineration grate 503 located in a hearth for garbage incineration, a primary air supply system 504 located at the lower part of the incineration grate 503, a secondary air supply system 505 located at the throat part of the incinerator, a slag extractor 506, and a branch pipe type sludge uniform distribution device 100 disposed above the feeding grate 502 or the incineration grate 503. The main pipe 101 of the branch pipe type sludge uniform distribution device 100 can be perpendicular to the feeding direction of the feeding grate 502. The details of the branched sludge uniformly distributing device 100 can be referred to above.

The household garbage is poured into the garbage incinerator from a feeding hole 501, and enters the incineration grate 503 to be incinerated under the reciprocating pushing action of the feeding grate 502; meanwhile, the sludge distributed by the branch pipe type sludge uniform distribution device 100 falls on the feeding grate 502 and is fed into the incineration grate 503 together with the household garbage by the feeding grate 502, or the sludge is directly distributed on the incineration grate 503. The incineration grate 503 is divided into a plurality of incineration units along the longitudinal direction as a whole, and each incineration unit is composed of a plurality of sliding grate segments, turning grate segments and fixed grate segments. The incineration grate 503 is longitudinally divided into a drying section, a combustion section and a burnout section, the domestic garbage and the sludge in the drying section are dried and dehydrated, the domestic garbage and the sludge are mainly combusted in the combustion section and are completely combusted in the burnout section, and then the residual slag enters the slag extractor 506 and is discharged out of the furnace by the slag extractor 506. The primary air supply system 504 feeds primary air from an air chamber at the bottom of the incineration grate 503, and the secondary air supply system 505 feeds secondary air from the throat of the garbage incinerator.

In one embodiment, the garbage incinerator further comprises a control device for controlling the opening and closing of the control valve in the branch pipe type sludge uniform distribution device 100. The control device can control the control valves to be opened in sequence or simultaneously; only one control valve can be opened at a time, and a plurality of control valves can be opened at the same time. When the trunk line includes two trunk lines that the symmetry set up, the control flap of both sides can the symmetric control open, also can control respectively to open, specifically can be adjusted in real time by controlling means according to the burning operating mode of reality.

The garbage incinerator of the embodiment of the invention adopts the branch pipe type sludge uniform distribution device, so that the sludge is directly and uniformly distributed above the feeding grate or the incineration grate, the sludge is conveniently and rapidly dried and combusted, the combustion condition in the incinerator is furthest ensured not to be influenced by the sludge, and the condition of nonuniform combustion caused by directly pushing the sludge into the garbage incinerator for incineration is avoided; in addition, because drying equipment is not needed, the sludge is directly distributed into the incinerator for incineration, and the equipment cost is reduced.

Unless defined otherwise, technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Terms such as "disposed" and the like, as used herein, may refer to one element being directly attached to another element or one element being attached to another element through intervening elements. Features described herein in one embodiment may be applied to another embodiment, either alone or in combination with other features, unless the feature is otherwise inapplicable or otherwise stated in the other embodiment.

The present invention has been illustrated by the above embodiments, but it should be understood that the above embodiments are for illustrative and descriptive purposes only and are not intended to limit the invention to the scope of the described embodiments. Furthermore, it will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that many variations and modifications may be made in accordance with the teachings of the present invention, which variations and modifications are within the scope of the present invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (10)

1. The utility model provides a branch pipe formula even distributing device of mud which characterized in that, the even distributing device of branch pipe formula mud includes:

the device comprises a main pipeline, a sludge feeding hole is formed in the end part of the main pipeline;

the first branch pipelines are communicated with the bottom of the main pipeline and are provided with control valves;

and the bottom ends of the second branch pipelines are provided with sludge discharge holes.

2. The branch pipe type sludge uniform distribution device according to claim 1, wherein the opening direction of the sludge discharge port is perpendicular to the opening direction of the sludge feed port.

3. The branched sludge uniform distribution device according to claim 1, wherein each of the first branch pipes is communicated with four of the second branch pipes.

4. The branch pipe type sludge uniform distribution device as claimed in claim 3, wherein four second branch pipes are symmetrically distributed on two sides of the axis of the main pipe.

5. The branch pipe type sludge uniform distribution device as claimed in claim 1, comprising two main pipes which are not communicated with each other, wherein the sludge feeding hole of each main pipe is arranged at one end far away from the other main pipe.

6. The branch pipe type sludge uniform distribution device according to claim 1, wherein the second branch pipe is provided with a sludge through port, and the opening direction of the sludge through port is opposite to the opening direction of the sludge discharge port.

7. The branched sludge uniform distributing device of claim 6, wherein the second branch pipe comprises a bent pipe portion connected with the first branch pipe and a straight pipe portion connected with the bent pipe portion, and the sludge through port is arranged on the bent pipe portion.

8. The branch pipe type sludge uniform distribution device according to claim 1, wherein the sludge feed port is connected with a sludge conveying pipeline and used for receiving sludge which is not dried from the sludge conveying pipeline.

9. A garbage incinerator, characterized in that the garbage incinerator comprises a feeding grate and an incineration grate which are arranged in sequence, and a branch pipe type sludge uniform distribution device according to any one of claims 1 to 8, wherein the branch pipe type sludge uniform distribution device is arranged above the feeding grate or the incineration grate.

10. The waste incinerator according to claim 9, wherein the main pipe of said branch pipe type sludge uniform distribution device has an axial direction perpendicular to the feeding direction of said feeding grate.

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