Biomass whole-straw flow-down slope type gas-char co-production generator

Abstract

The application discloses a biomass whole-straw slope-flow type gas-carbon cogeneration generator, which comprises a fuel reaction cylinder, a gas-carbon shunt assembly and a gas-carbon shunt box. The fuel reaction cylinder has a furnace cavity inside, is obliquely arranged, and has a feeding port at the high end and a port at the bottom end. The gas-carbon shunt assembly is in a tubular structure, a plurality of gas-carbon shunt assemblies are horizontally arranged in the furnace cavity, and are obliquely distributed downwards towards the low end of the fuel reaction cylinder. The gas-carbon shunt box is fixedly installed at the port of the fuel reaction cylinder, a gas-carbon mixed-flow gate plate is arranged on the back of the gas-carbon shunt box, a spacing is reserved between the lower edge of the gas-carbon mixed-flow gate plate and the lower edge of the port, a gas output pipe is fixedly installed above the gas-carbon shunt box, and a flow-converging box is fixedly installed below the gas-carbon shunt box. The flow-converging box is provided with a carbon discharging pipe. A plurality of gasification agent flow grooves extending along the length direction of the cylinder body are formed in the bottom of the fuel reaction cylinder, and the plurality of gasification agent flow grooves are equidistantly arranged and distributed along the width direction of the cylinder body.

Description

TECHNICAL FIELD

[0001] The present application relates to a biomass gasification equipment processing field, in particular to a biomass whole-straw slope-flowing type gas-char cogeneration generator. BACKGROUND

[0002] Biomass includes agricultural and forestry waste, China has extremely rich resources, as biomass is an important clean and renewable energy, since 1918, the first updraft wood charcoal gasification furnace was designed, followed by down-draft and fluidized bed gasification furnace, and after the oil crisis in the 1970s, it developed rapidly.

[0003] In the prior art, the biomass gasification equipment generally includes an updraft gasification furnace and a down-draft gasification furnace, the fuel and the fuel gas flow in different directions in the updraft gasification furnace, the generated biomass combustible gas is relatively clean after fuel filtration, but frequent sealing and feeding cause the biomass combustible gas to have high air content and low heat value, the fuel gasification is smooth in the down-draft gasification furnace, but the power consumption is high, and the fluidized bed gasification furnace has high cost. SUMMARY

[0004] The present application aims to provide a biomass whole-straw slope-flowing type gas-char cogeneration generator to solve the problems in the background art.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical scheme:

[0006] A biomass whole-straw slope-flowing type gas-char cogeneration generator, comprising a fuel reaction cylinder, a gas-char shunt assembly and a gas-char shunt box, the fuel reaction cylinder has a furnace cavity inside, the fuel reaction cylinder is inclinedly erected, the high end forms a feeding port, and the bottom end forms a port;

[0007] The gas-char shunt assembly is in a tubular structure, a plurality of gas-char shunt assemblies are transversely arranged in the furnace cavity and are distributed downwardly and obliquely toward the low end of the fuel reaction cylinder;

[0008] The gas-char shunt box is fixedly installed at the port of the fuel reaction cylinder, a gas-char mixed flow gate plate is arranged on the back of the gas-char shunt box, a spacing is reserved between the lower edge of the gas-char mixed flow gate plate and the lower edge of the port, a fuel gas output pipe is fixedly installed above the gas-char shunt box, and a flow converging box is fixedly installed below the gas-char shunt box, and a carbon discharging pipe is assembled on the flow converging box.

[0009] As a further scheme of the present application, a plurality of gasification agent flow grooves extending along the length direction of the cylinder body are formed in the bottom of the fuel reaction cylinder, and the plurality of gasification agent flow grooves are arranged and distributed at equal intervals along the width direction of the cylinder body.

[0010] As a further scheme of the present application, a workbench is arranged below the feeding port of the fuel reaction cylinder, guardrails are arranged at the edges of the workbench, and a crawling ladder is arranged at one side of the workbench.

[0011] As a further scheme of the present application, a feeding sliding table is hinged at the feeding port of the fuel reaction cylinder, and the feeding sliding table rotates around the hinge shaft through a driving mechanism.

[0012] As a further scheme of the present application, the driving mechanism is a hydraulic jacking machine, a base is arranged below the workbench, one end of the hydraulic jacking machine is hinged to the base, and the other end penetrates through the workbench and is hinged to the bottom of the feeding sliding table.

[0013] As a further scheme of the present application, a tail plate is vertically and fixedly arranged at the end of the feeding sliding table, a feeding pushing cylinder is fixedly connected to the inner side of the tail plate, and a pushing plate is fixedly connected to the movable end of the feeding pushing cylinder.

[0014] As a further scheme of the present application, the gas-carbon shunting assembly comprises a ceramic tube and a stainless steel screw rod, one end of the ceramic tube penetrates through a straight pipe, a flange is fixedly arranged at the outer periphery of the straight pipe, a blind plate and a flange graphite gasket are sequentially and outwardly pressed and arranged on the flange and seal the end of the ceramic tube, bolts sequentially penetrate through the flange, the flange graphite gasket and the blind plate, and the ends of the bolts are fixed by nuts. A head graphite gasket and a stainless steel gasket are sequentially arranged at the other end of the ceramic tube, the stainless steel screw rod sequentially and coaxially penetrates through the blind plate, the flange graphite gasket, the ceramic tube, the head graphite gasket and the stainless steel gasket, and the two ends of the stainless steel screw rod are fastened by threads.

[0015] As a further scheme of the present application, a plurality of support pieces are arranged in the ceramic tube in the axial direction, and the stainless steel screw rod penetrates through the holes of the support pieces.

[0016] As a further scheme of the present application, the support pieces are support round graphite gaskets.

[0017] Compared with the prior art, the present application has the following beneficial effects:

[0018] The biomass whole-straw slope-flow type gas-char co-production generator has a furnace cavity in the fuel reaction cylinder, the fuel reaction cylinder is obliquely arranged, the high end of the fuel reaction cylinder forms a feeding port, and the bottom end of the fuel reaction cylinder forms a port; the gas-char shunting assembly is in a tubular structure, a plurality of gas-char shunting assemblies are transversely arranged in the furnace cavity and are obliquely distributed downwards towards the low end of the fuel reaction cylinder; the gas-char shunting box is fixedly installed at the port of the fuel reaction cylinder, the gas-char shunting box is provided with a gas-char mixed flow gate plate on the back surface, a spacing is reserved between the lower edge of the gas-char mixed flow gate plate and the lower edge of the port, a fuel gas output pipe is fixedly installed above the gas-char shunting box, and a flow converging box is fixedly installed below the gas-char shunting box, the flow converging box is provided with a carbon discharging pipe, so that the fuel is subjected to combustion reaction in the furnace cavity to generate biomass fuel gas and biomass char which are discharged in a shunting manner, the biomass whole-straw slope-flow type gas-char co-production generator has novel design, reasonable structure, simple manufacturing, convenient operation, flexible use, safe operation, can greatly reduce the operation and maintenance cost and generate greater economic benefits. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a structural schematic view of the biomass whole-straw slope-flow type gas-char co-production generator;

[0020] Figure 2 It is a side sectional view of the biomass whole-straw slope-flow type gas-char co-production generator under working conditions;

[0021] Figure 3 It is a side sectional view of the biomass whole-straw slope-flow type gas-char co-production generator;

[0022] Figure 4 It is a structural schematic view of the fuel reaction cylinder;

[0023] Figure 5 It is a side sectional view of the fuel reaction cylinder;

[0024] Figure 6 It is a structural schematic view of the gas-char shunting assembly;

[0025] Figure 7 It is a sectional view of the gas-char shunting assembly;

[0026] In the drawing: fuel reaction cylinder 1, furnace cavity 11, feeding port 12, port 13, metal shell 14, high-temperature refractory brick 15, gasification agent flow groove 16, mounting hole 17, supporting leg 18;

[0027] Gas-char shunting assembly 2, stainless steel screw 21, bolt 21a, nut 21b, blind plate 22, flange graphite gasket 23, flange 24, straight pipe 25, ceramic pipe 26, supporting circular graphite gasket 27, head graphite gasket 28, stainless steel gasket 29;

[0028] Gas-char shunting box 3, exhaust port 31, carbon discharging port 32, gas-char mixed flow gate plate 33, fuel gas output pipe 34, flow converging box 35, carbon discharging pipe 36;

[0029] Workbench 4, guardrail 41, support column 42, ladder 43;

[0030] Loading sliding table 5, tail plate 51, feeding push cylinder 52, push plate 53, jacking hydraulic machine 54, base 55;

[0031] Bundled straw 6, fuel 7, fuel gas 8. DETAILED DESCRIPTION

[0032] In order to explain the technical content, structural features, purposes and effects of the technical scheme in detail, the following will be described in detail in combination with specific embodiments and the accompanying drawings.

[0033] Please refer to Figures 1-5 In the embodiment, a biomass bundled straw slope flow type gas and carbon co-production generator includes a fuel reaction cylinder 1, a gas and carbon shunt assembly 2, a gas and carbon shunt box 3, a loading sliding table 5, and a workbench. The fuel reaction cylinder 1 is the main fuel 7 reaction device of the gas and carbon co-production generator, and has a furnace cavity 11 inside for filling the bundled straw 6. The fuel 7 and the gasification agent enter the furnace cavity 11 to perform combustion reaction, so as to produce biomass carbon and fuel gas 8. The fuel reaction cylinder 1 is in an inclined erection state through a support leg 18, and has a feeding port 12 at the high end and a port 13 at the bottom end. The inclination angle of the fuel reaction cylinder 1 is greater than the natural sliding angle of the selected fuel 7 by 5-10°. The bundled straw 6 enters the furnace cavity 11 from the feeding port 12 at the high end and is filled therein. The produced biomass carbon and fuel gas 8 are preliminarily separated by the gas and carbon shunt assembly 2 and then enter the gas and carbon shunt box 3 through the port 13, so as to realize gas and carbon separation and discharge.

[0034] In the embodiment, specifically, the cross section of the fuel reaction cylinder 1 is rectangular. The cylinder body is composed of a metal shell 14 wrapped in the outermost layer and a high-temperature refractory brick 15 laid and filled in the inner layer of the metal shell 14, and limits the furnace cavity 11. A plurality of gasification agent flow grooves 16 extending along the length direction of the cylinder body are arranged at the bottom of the fuel reaction cylinder 1. The plurality of gasification agent flow grooves 16 are arranged and distributed equidistantly along the width direction of the cylinder body. The gasification agent enters the furnace cavity 11 together with the bundled straw 6, and flows into the furnace cavity 11 from the high end of the cylinder body to the low end along the gasification agent flow grooves 16, and enters the fuel 7 accumulated in the furnace cavity 11 from bottom to top in the process of inclined flow, so as to provide an access for the gasification agent and ensure the smooth thermal chemical reaction of the fuel 7.

[0035] A plurality of installation holes 17 are arranged on the two opposite side walls of the fuel reaction cylinder 1 in a slanting manner, and a row of installation holes 17 is slanted downward towards the lower end of the fuel reaction cylinder 1. The installation holes 17 serve as the bearing part of the gas-carbon shunting assembly 2, and are used to assemble the gas-carbon shunting assembly 2, so that a plurality of gas-carbon shunting assemblies 2 are arranged in a slanting manner in the furnace cavity 11, and the furnace cavity 11 is blocked to achieve the preliminary separation of the biomass charcoal and the fuel gas 8.

[0036] The gas-carbon shunting assembly 2 is generally in a tubular structure, and a plurality of gas-carbon shunting assemblies 2 are arranged in a transverse manner in the furnace cavity 11 and are arranged in a slanting manner to block the furnace cavity 11. The fuel 7 is blocked by the grate formed by the plurality of gas-carbon shunting assemblies 2 arranged in a slanting manner to accumulate on the inner side of the grate and to undergo a layer-by-layer thermal chemical reaction. The biomass charcoal generated under the combined action of self-weight extrusion and slanting downstream flow hits the gas-carbon shunting assembly 2, so that the biomass charcoal is discharged from the gap between the adjacent gas-carbon shunting assemblies 2 to the outside of the grate and is deposited downward. The fuel gas 8 is discharged from the gap between the gas-carbon shunting assemblies 2 to the outside of the grate and is gathered upward to achieve the preliminary separation of the biomass charcoal and the fuel gas 8.

[0037] The gas-carbon shunting box 3 is fixedly installed at the port 13 of the fuel reaction cylinder 1. The gas-carbon shunting box 3 is in a rectangular box structure, and the gas-carbon mixed flow gate 33 at the back thereof is connected to the port 13 of the fuel reaction cylinder 1 through the flange 24. A spacing is reserved between the lower edge of the gas-carbon mixed flow gate 33 and the lower edge of the port 13, that is, the bottom of the gas-carbon mixed flow gate 33 does not completely block the port 13, so that the furnace cavity 11 is in communication with the gas-carbon shunting box 3. The gas 8 output pipe 34 is fixedly installed on the gas outlet 31 located at the upper side of the gas-carbon shunting box 3, and the gas 8 output pipe 34 is connected to the external gas using equipment (not shown in the figure). The gas-carbon gathering box 35 is fixedly installed on the charcoal outlet 32 located at the lower side of the gas-carbon shunting box 3, and the charcoal discharge pipe 36 is assembled on the gas-carbon gathering box 35, and the spiral charcoal discharging machine (not shown in the figure) is installed on the charcoal discharge pipe 36. The preliminarily separated fuel gas 8 and biomass charcoal enter the gas-carbon shunting box 3 from the port 13 below the gas-carbon mixed flow gate 33 to undergo secondary separation. The biomass charcoal is discharged from the charcoal discharge pipe 36 below the gas-carbon shunting box 3 through the spiral charcoal discharging machine, and the fuel gas 8 is input into the gas using equipment through the gas 8 output pipe 34 located at the upper side and is directly used.

[0038] In this embodiment, the gas-carbon co-production generator further comprises a workbench erected below the feeding port 12 of the fuel reaction cylinder 1 through a support column. Guardrails are arranged at the edges of the workbench, and a crawling ladder is arranged at one side of the workbench. The arrangement of the workbench and the crawling ladder provides convenience for equipment installation and system operation.

[0039] The cogeneration generator of the embodiment is to put the baled biomass fuel 7 into the furnace cavity 11, in order to facilitate the feeding of the baled straw 6, the feeding sliding table 5 is hinged at the feeding port 12 of the fuel reaction cylinder 1, the feeding sliding table 5 is used for temporarily storing the baled straw 6, and the feeding sliding table 5 is driven by the driving mechanism to rotate upward around the hinge shaft, so that the baled straw 6 enters the furnace cavity 11 one by one through the feeding port 12, thereby facilitating feeding.

[0040] In the embodiment, the driving mechanism for driving the feeding sliding table 5 can be a jacking hydraulic machine 54, a base 55 is installed below the workbench, one end of the jacking hydraulic machine 54 is hinged to the base 55, and the other end penetrates the workbench and is hinged to the bottom of the feeding sliding table.

[0041] In order to prevent the baled straw 6 from not being able to roll off, in the embodiment, the tail plate 51 is vertically and fixedly installed at the end of the feeding sliding table 5, the feeding push cylinder 52 is fixedly connected to the inner side of the tail plate 51, and the movable end of the feeding push cylinder 52 is fixedly connected to the push plate 53. When the baled straw 6 is difficult to roll off, the feeding push cylinder 52 pushes outward and pushes the baled straw 6 into the furnace cavity 11 through the push plate 53, so as to ensure the smooth feeding.

[0042] In combination with Figure 6 and Figure 7 , specifically, the gas-carbon shunting assembly 2 includes a ceramic tube 26 and a stainless steel screw 21, one end of the ceramic tube 26 penetrates the straight pipe 25, the flange 24 is fixedly arranged on the outer periphery of the straight pipe 25, the blind plate 22 and the flange graphite gasket 23 are sequentially pressed and arranged from the outside to the inside on the flange 24 and seal the end of the ceramic tube 26, the bolts 21a sequentially penetrate the flange 24, the flange graphite gasket 23 and the blind plate 22, and the ends are fixed by the nuts 21b. The other end of the ceramic tube 26 is sequentially provided with a head graphite gasket 28 and a stainless steel gasket 29, the stainless steel screw 21 sequentially coaxially penetrates the blind plate 22, the flange graphite gasket 23, the ceramic tube 26, the head graphite gasket 28 and the stainless steel gasket 29, and the two ends of the stainless steel screw 21 are respectively fastened by threads.

[0043] When assembling, the gas and carbon shunt assembly 2 is passed through one of the mounting holes 17, passed out of the other mounting hole 17 after passing through the furnace cavity 11, and fixedly connected with the fuel reaction cylinder 1 through the flange 24, thereby completing the assembly. The ceramic tube 26 is used as the main body, and the two ends are sealed by the blind plate 22, the stainless steel gasket 29, and the graphite gasket arranged at the two ends, thereby avoiding the gas 8 or the carbon ash from entering the ceramic tube 26, and the blind plate 22, the stainless steel gasket 29, and the graphite gasket at the two ends are fastened by the stainless steel threaded rod penetratingly arranged and cooperating with the nut 21b, thereby forming a split structure of the gas and carbon shunt assembly 2, and when the ceramic tube 26 as the main body is damaged under a long-time high-temperature environment or under the extrusion of the fuel 7, the ceramic tube 26 can be conveniently disassembled and replaced, and the ceramic tube 26 itself has a strong high-temperature resistance, thereby improving the service life of the gas and carbon shunt assembly 2.

[0044] In the embodiment, preferably, in order to improve the support strength and the pressure-bearing capacity of the ceramic tube 26, a plurality of support members are arranged in the ceramic tube 26 in the axial direction, and the stainless steel screw rod 21 is passed through the holes of the plurality of support members. In the embodiment, the support member is selected as the support graphite gasket 27.

[0045] The gas and carbon co-production generator has the fuel reaction cylinder 1 which is arranged in an inclined manner, the flow slope of the fuel 7 is increased according to the mass of the fuel 7, and the fuel 7 has good flowability in the fuel reaction cylinder 1. The command control system starts the feeding machine to drop the whole straw 6 as the fuel 7 into the feeding sliding table 5 and sequentially into the furnace cavity 11, the fuel 7 is burned by using the flame jet, the fuel 7 is continuously fed after the hot working condition of the fuel 7 is generated, the fuel 7 in the fuel reaction cylinder 1 carries the gasification agent to perform the drying, dry distillation, oxidation, and reduction thermochemical reactions in the downhill flow, and the biomass fuel gas 8 and the biomass carbon are shunted and discharged, the design is novel, the structure is reasonable, the manufacturing is simple, the operation is convenient, the use is flexible, the running is safe, the running and maintenance cost can be well reduced, and greater economic benefits can be generated.

[0046] It is to be noted that, in the present text, terms such as first and second, and the like, merely serve to identify a difference between one entity or action and another entity or action, and do not necessarily require or imply that there is any such actual relationship or order between these entities or actions. Moreover, the terms "comprising", "including", or any other variant thereof are intended to cover a non-exclusive inclusion, such that processes, methods, articles, or apparatuses that comprise a list of elements are not required to comprise only those elements, but can include other elements not expressly listed or inherent to such processes, methods, articles, or apparatuses. Without further limitation, an element preceded by "comprises a" or "comprises" does not, without more limitations, preclude the existence of further elements of the process, method, article, or apparatus that includes the element. Furthermore, in the present text, "greater than", "less than", "exceed", and the like are understood to exclude the number itself; "and above", "and below", "and within", and the like are understood to include the number itself.

[0047] Although the above-mentioned embodiments have been described, those skilled in the art can make further changes and modifications to these embodiments once they know the basic inventive concept, so the above description is only for the embodiments of the present application, and does not limit the patent protection scope of the present application, and any equivalent structure or equivalent process transformation using the content of the present application specification and drawings, or direct or indirect application in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A biomass straw downhill flow gasification and coke generation generator, characterized in that: The application relates to a fuel reaction cylinder, a gas-carbon shunting assembly and a gas-carbon shunting box, wherein the fuel reaction cylinder has a furnace cavity inside, and the fuel reaction cylinder is obliquely arranged, with a feeding port formed at the high end and a port formed at the bottom end. The gas-carbon shunting assembly is in a tubular structure, and a plurality of gas-carbon shunting assemblies are horizontally arranged in the furnace cavity and are obliquely distributed downwards towards the low end of the fuel reaction cylinder. The gas-carbon shunting box is fixedly installed at the port of the fuel reaction cylinder, a gas-carbon mixed flow gate plate is arranged at the back of the gas-carbon shunting box, a spacing is reserved between the lower edge of the gas-carbon mixed flow gate plate and the lower edge of the port, a gas output pipe is fixedly installed above the gas-carbon shunting box, and a flow gathering box is fixedly installed below the gas-carbon shunting box, wherein the flow gathering box is provided with a carbon discharging pipe. A plurality of gasification agent flow grooves are formed in the bottom of the fuel reaction cylinder and extend along the length direction of the cylinder body, and the plurality of gasification agent flow grooves are equidistantly arranged along the width direction of the cylinder body. The gas-carbon shunting assembly comprises a ceramic tube and a stainless steel screw rod, one end of the ceramic tube penetrates through a straight pipe, a flange is fixedly arranged on the outer periphery of the straight pipe, a blind plate and a flange graphite gasket are sequentially and outwardly pressed on the flange and seal the end of the ceramic tube, a bolt penetrates through the flange, the flange graphite gasket and the blind plate in sequence, and the end of the bolt is fixed by a nut; a head graphite gasket and a stainless steel gasket are sequentially arranged at the other end of the ceramic tube, the stainless steel screw rod coaxially penetrates through the blind plate, the flange graphite gasket, the ceramic tube, the head graphite gasket and the stainless steel gasket in sequence, and the two ends of the stainless steel screw rod are respectively fastened by threads. A plurality of support pieces are arranged in the ceramic tube in the axial direction, and the stainless steel screw rod penetrates through the holes of the plurality of support pieces.

2. The biomass integrated straw bale downslope flow type gas-char cogeneration generator according to claim 1, characterized in that: A workbench is arranged below the feeding port of the fuel reaction cylinder, guardrails are arranged at the edges of the workbench, and a crawling ladder is arranged on one side of the workbench.

3. The biomass integrated straw bale downslope flow type gas-char cogeneration generator according to claim 1, characterized in that: A feeding sliding table is hingedly arranged at the feeding port of the fuel reaction cylinder, and the feeding sliding table rotates around the hinge shaft by a driving mechanism.

4. The biomass integrated straw bale downhill flow type gas-char cogeneration generator according to claim 3, characterized in that: The driving mechanism is a jacking hydraulic machine, a base is installed below the workbench, one end of the jacking hydraulic machine is hingedly connected with the base, and the other end penetrates through the workbench and is hingedly connected with the bottom of the feeding sliding table.

5. The biomass integrated straw bale downhill flow type gas-char cogeneration generator according to claim 3, characterized in that: A tail plate is vertically and fixedly installed at the end of the feeding sliding table, a feeding pushing cylinder is fixedly connected to the inner side of the tail plate, and a pushing plate is fixedly connected to the movable end of the feeding pushing cylinder.

6. The integrated biomass gasification combined cycle generator of claim 1, wherein: The support piece is a supporting graphite gasket.

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