Biomass incineration system

Abstract

The utility model provides a biomass incineration system which comprises waste gas treatment equipment which comprises a tower body, a spraying device and a recycling pool, a treatment space is formed in the tower body and used for receiving waste gas generated by biomass combustion, the spraying device is arranged in the treatment space, and the recycling pool is used for recycling the waste gas generated by biomass combustion. The recovery pool is used for conveying a washing solution for washing the waste gas into the treatment space, is arranged at the bottom of the tower body, is communicated with the treatment space and is used for receiving the washing solution in contact with the waste gas; and the biomass storage bin is provided with a storage space, the storage space is used for storing biomass to be combusted, the storage space communicates with the recycling pool through a conveying pump, and therefore the washing solution in the recycling pool is conveyed into the storage space through the conveying pump. The effect of preventing spontaneous combustion of the biomass in the storage space is achieved through the washing waste liquid collected by the recycling pool, recycling of the washing waste liquid is achieved, clean water does not need to be additionally sprayed into the biomass storage bin, and resources are saved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of biomass incineration, particularly to a biomass incineration system. BACKGROUND

[0002] As one of common heat sources, biomass incineration technology has a wide application in the fields of heat supply and power generation. In the process of burning biomass, combustion waste gas will be generated. The combustion waste gas generated by burning biomass needs to be treated before being discharged into the atmosphere. Among them, carbon capture treatment is one of the waste gas treatment and purification methods. For the waste gas generated by burning biomass, sodium, potassium, chlorine and other elements exist in the waste gas. The excess elements in the waste gas need to be removed through a water washing process, and then carbon capture treatment is carried out to avoid the adverse effects of excess elements on carbon capture treatment. At present, the waste liquid generated by washing the waste gas is directly discharged without effective recycling. SUMMARY

[0003] An object of the utility model is to provide a biomass incineration system capable of recycling the water washing waste liquid of biomass combustion waste gas.

[0004] In particular, the utility model provides a biomass incineration system, comprising:

[0005] A waste gas treatment device, comprising a tower body, a spraying device and a recovery tank. The tower body has a treatment space inside. The treatment space is used for receiving waste gas generated by burning biomass. The spraying device is arranged in the treatment space and is used for delivering a water washing solution for water washing treatment of the waste gas into the treatment space. The recovery tank is arranged at the bottom of the tower body and is in communication with the treatment space, and is used for receiving the water washing solution contacted with the waste gas.

[0006] A biomass storage bin is provided with a storage space. The storage space is used for storing biomass to be burned. The storage space is in communication with the recovery tank through a delivery pump, so that the water washing solution in the recovery tank is delivered into the storage space by the delivery pump.

[0007] Optionally, a filter screen is arranged on the flow path between the recovery tank and the delivery pump. The filter screen is used for filtering the liquid flowing from the recovery tank to the delivery pump.

[0008] Optionally, a stirring device is arranged in the recovery tank. The stirring device is used for stirring the liquid in the recovery tank.

[0009] Optionally, a humidity sensor is arranged in the storage space. The delivery pump is configured to be closed when the detection value of the humidity sensor is greater than a preset humidity threshold.

[0010] Optionally, the exhaust treatment device further comprises a circulating pump arranged between the recovery tank and the spraying device, for delivering the liquid in the recovery tank to the spraying device.

[0011] Optionally, an ion concentration detector is arranged in the recovery tank, the circulating pump is configured to be closed when the detection value of the ion concentration detector is greater than a preset concentration threshold, and the delivery pump is configured to be opened when the detection value of the ion concentration detector is greater than the preset concentration threshold.

[0012] Optionally, the biomass incineration system further comprises a feeding device for delivering an alkaline substance into the recovery tank to make the liquid in the recovery tank alkaline.

[0013] Optionally, the side wall of the tower body is provided with an air inlet communicating with the treatment space, the air inlet is used for receiving the exhaust gas to be treated, the spraying device is arranged at a position higher than the air inlet, and the exhaust treatment device further comprises a flow guide plate arranged in the treatment space and located between the air inlet and the spraying device, the flow guide plate is provided with a plurality of through holes, and the flow guide plate is provided with a protrusion towards the side where the air inlet is located.

[0014] Optionally, the flow guide plate is arranged obliquely along the air inlet direction.

[0015] Optionally, the flow guide plate is inclined from top to bottom along the air inlet direction of the air inlet.

[0016] The biomass incineration system of the utility model can collect the water washing waste liquid contacted by the exhaust gas through the recovery tank arranged in the bottom of the tower body and connected with the treatment space, and the water washing waste liquid collected in the recovery tank can be delivered to the storage space of the biomass storage bin by the delivery pump, so as to be sprayed on the biomass stored in the storage space. Therefore, the water washing waste liquid collected by the recovery tank can prevent the biomass in the storage space from spontaneous combustion, and the water washing waste liquid can be reused. Moreover, it is not necessary to spray clean water into the biomass storage bin additionally, which helps to reduce unnecessary use of water resources and save resources. In addition, some substance ions can enter the next incineration with the biomass in the storage space, and the substance ions can be solidified after multiple incinerations, thereby reducing the treatment pressure of the water washing waste liquid.

[0017] The biomass incineration system of the utility model discloses a humidity sensor is arranged in the storage space, and the delivery pump is configured to be closed when the detection value of the humidity sensor is greater than the preset humidity threshold value, the humidity sensor is used for detecting the humidity value in the storage space, when the detection value of the humidity sensor is greater than the preset humidity threshold value, that is, when the humidity in the storage space is large, the delivery pump is controlled to be closed, that is, the water washing waste liquid is stopped from being delivered to the biomass storage bin, so that the storage space is kept at a suitable humidity value, under the condition of preventing the spontaneous combustion of biomass, the subsequent combustion efficiency is avoided from being affected by the too large humidity of biomass.

[0018] The above and other objects, advantages and features of the present utility model will become more apparent from the following detailed description of the preferred embodiments thereof, taken in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0019] Some embodiments of the present utility model will now be described in detail with reference to the drawings, which are by way of illustration and not by way of limitation. Like reference numerals designate like parts throughout the drawings. It should be understood by those skilled in the art that the drawings are not necessarily drawn to scale. In the drawings:

[0020] Figure 1 is a schematic block diagram of the biomass incineration system according to one embodiment of the present utility model;

[0021] Figure 2 is a schematic diagram of the waste gas treatment equipment in the biomass incineration system according to one embodiment of the present utility model;

[0022] Figure 3 is a partial schematic diagram of the waste gas treatment equipment in the biomass incineration system according to one embodiment of the present utility model;

[0023] Figure 4 is a schematic diagram of the flow guide plate in the biomass incineration system according to one embodiment of the present utility model;

[0024] Figure 5 is a schematic diagram of the waste gas treatment equipment in the biomass incineration system according to another embodiment of the present utility model;

[0025] Figure 6 is a partial schematic block diagram of the biomass incineration system according to one embodiment of the present utility model. DETAILED DESCRIPTION

[0026] Those skilled in the art shall understand that the embodiments described below are only part of the embodiments of the utility model, rather than all the embodiments of the utility model, and the part of the embodiments are intended to explain the technical principles of the utility model, rather than limit the protection scope of the utility model. Based on the embodiments provided by the utility model, all other embodiments obtained by those skilled in the art without creative labor shall still fall within the protection scope of the utility model.

[0027] In the description of the utility model, it shall be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential" are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and are not intended to indicate or imply that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0028] Further, it shall be further explained that, in the description of the utility model, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting" shall be understood broadly, for example, can be fixed connection, can also be detachable connection, or integrally connected; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, and can also be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0029] As shown in Figure 1 and Figure 2 In one embodiment, the biomass incineration system includes a waste gas treatment device 100 and a biomass storage bin 200. The waste gas treatment device 100 includes a tower body 110, a spraying device 120 and a recovery tank 130, the tower body 110 is internally formed with a treatment space 101 for receiving waste gas generated by biomass combustion. The spraying device 120 is arranged in the treatment space 101 and is used for conveying a water washing solution for water washing treatment of the waste gas into the treatment space 101. The recovery tank 130 is arranged at the bottom of the tower body 110 and is communicated with the treatment space 101, and is used for receiving the water washing solution contacted with the waste gas. The biomass storage bin 200 is provided with a storage space for storing biomass to be combusted, and the storage space is communicated with the recovery tank 130 through a conveying pump 300, so as to convey the water washing solution in the recovery tank 130 into the storage space by the conveying pump 300.

[0030] As shown in Figures 1-2As shown, specifically, the tower body 110 is a square or cylindrical structure, and a longitudinally extending treatment space 101 is formed inside the tower body 110. A gas inlet 102 is formed in the side wall of the tower body 110 and communicates with the treatment space 101, and the gas inlet 102 is arranged near the bottom end of the tower body 110. The tower body 110 is also provided with a gas outlet that communicates with the treatment space 101, and the gas outlet is arranged near the top end of the tower body 110. The exhaust gas generated by burning the biomass is transported into the treatment space 101 through the gas inlet 102, and then flows from the bottom end of the tower body 110 to the top end of the tower body 110 in the treatment space 101.

[0031] Referring to Figures 1-2 As shown, the spraying device 120 is arranged in the treatment space 101 at a position higher than the gas inlet 102, and the spraying device 120 is used to spray the exhaust gas washing solution into the treatment space 101. After the falling washing solution meets the exhaust gas rising from the gas inlet 102, the sodium, potassium, chlorine and other elements in the exhaust gas are adsorbed. The recovery tank 130 is arranged at the bottom of the tower body 110 and communicates with the treatment space 101, and is arranged at a position lower than the position of the gas inlet 102. The recovery tank 130 is used to receive the liquid falling after being sprayed by the spraying device 120. Specifically, the recovery tank 130 receives the washing solution that has been in contact with the exhaust gas.

[0032] As Figure 1 and Figure 2 As shown, the delivery pump 300 communicates with the recovery tank 130 and the storage space, respectively. When the delivery pump 300 is turned on, the delivery pump 300 can deliver the washing waste liquid in the recovery tank 130 to the storage space of the biomass storage bin 200, so as to sprinkle the biomass in the storage space, thereby preventing the large amount of biomass accumulated in the storage space from self-igniting.

[0033] In the scheme of the present embodiment, by arranging the recovery tank 130 that communicates with the treatment space 101 at the bottom of the tower body 110, and using the delivery pump 300 to communicate the recovery tank 130 and the storage space of the biomass storage bin 200, the recovery tank 130 can collect the washing waste liquid that has been in contact with the exhaust gas, and the delivery pump 300 can deliver the washing waste liquid collected in the recovery tank 130 to the storage space of the biomass storage bin 200, so as to sprinkle the biomass stored in the storage space. Therefore, the washing waste liquid collected by the recovery tank 130 can be used to prevent the biomass in the storage space from self-igniting, and the washing waste liquid is reused. Moreover, it is not necessary to additionally sprinkle clean water into the biomass storage bin 200, which helps to reduce unnecessary use of water resources and save resources. In addition, some substance ions can enter the next incineration with the biomass in the storage space, and after multiple incinerations, solidification is formed, thereby reducing the treatment pressure of the washing waste liquid.

[0034] As Figure 1As shown in the figure, in one embodiment, a filter screen 400 is arranged on the flow path between the recovery tank 130 and the delivery pump 300, and the filter screen 400 is used to filter the liquid flowing from the recovery tank 130 to the delivery pump 300. Specifically, the water washing waste liquid flowing from the recovery tank 130 to the delivery pump 300 passes through the filter screen 400, and the filter screen 400 blocks the large-particle-size substances in the water washing waste liquid, that is, prevents the large-particle-size substances in the water washing waste liquid from flowing to the delivery pump 300, thereby avoiding damage to the delivery pump 300 by the large-particle-size substances and protecting the delivery pump 300.

[0035] As shown in the figure, Figure 1 and Figure 2 The recovery tank 130 is provided with a stirring device 140, and the stirring device 140 is used to stir the liquid in the recovery tank 130. By arranging the stirring device 140 in the recovery tank 130, the stirring device 140 is used to stir the water washing waste liquid in the recovery tank 130, thereby avoiding the condensation and deposition of ions and solid particles in the recovery tank 130, ensuring the uniformity of ion distribution in the recovery tank 130, avoiding the blockage of pipelines by large agglomerated particles, and enabling the ions to be as much as possible sprayed onto the biomass in the storage space along with the water washing waste liquid, thereby realizing the subsequent repeated combustion and sintering into solids.

[0036] As shown in the figure, Figure 1 The storage space is provided with a humidity sensor 500, and the humidity sensor 500 is electrically connected to the delivery pump 300, and the delivery pump 300 is configured to be closed when the detection value of the humidity sensor 500 is greater than a preset humidity threshold. Specifically, the humidity sensor 500 is used to detect the humidity value in the storage space, and the control circuit of the delivery pump 300 is controlled by the humidity sensor 500. When the detection value of the humidity sensor 500 is greater than the preset humidity threshold, that is, when the humidity in the storage space is high, the delivery pump 300 is controlled to be closed, that is, the delivery of the water washing waste liquid to the biomass storage bin 200 is stopped.

[0037] In the scheme of the present embodiment, the humidity sensor 500 is arranged in the storage space, and the delivery pump 300 is configured to be closed when the detection value of the humidity sensor 500 is greater than a preset humidity threshold. The humidity sensor 500 is used to detect the humidity value in the storage space. When the detection value of the humidity sensor 500 is greater than the preset humidity threshold, that is, when the humidity in the storage space is high, the delivery pump 300 is controlled to be closed, that is, the delivery of the water washing waste liquid to the biomass storage bin 200 is stopped, thereby ensuring that the storage space is maintained at a suitable humidity value, preventing the biomass from self-igniting, and avoiding excessive humidity of the biomass affecting the subsequent combustion efficiency.

[0038] It should be noted that in other embodiments, an electromagnetic valve can also be arranged between the delivery pump and the storage space, and the electromagnetic valve is configured to be closed when the detection value of the humidity sensor is greater than the preset humidity threshold.

[0039] As Figures 2-4 shown, the exhaust gas treatment device 100 further comprises a flow guide plate 150 arranged in the treatment space 101 and located between the air inlet 102 and the spraying device 120. The flow guide plate 150 is provided with a plurality of through holes 103, and the flow guide plate 150 is provided with a protrusion towards the side where the air inlet 102 is located. The exhaust gas entering from the air inlet 102 will encounter the protrusion on the flow guide plate 150 during the rising process, and then spread around the protrusion under the guidance of the protrusion, that is, spread on the flow guide plate 150, so that the exhaust gas is more dispersed, the contact area with the water washing solution is increased, and the water washing treatment effect of the exhaust gas is improved. The exhaust gas can also flow to the upper side of the flow guide plate 150 through the through holes 103 on the flow guide plate 150, so as to continue the subsequent treatment and finally flow out from the top of the tower body 110.

[0040] As Figures 2-4 shown, in one embodiment, the flow guide plate 150 is arranged obliquely along the air inlet direction of the air inlet 102. Specifically, the flow guide plate 150 is inclined from top to bottom along the air inlet direction of the air inlet 102. Referring to Figure 2 shown, the air inlet 102 is located on the left side of the tower body 110, and the air inlet direction of the air inlet 102 is from left to right, so the flow guide plate 150 is inclined from left to right and from top to bottom, that is, inclined to the right and downward. In this way, when the exhaust gas entering from the air inlet 102 is diffused by the flow guide plate 150, part of the exhaust gas will also flow to the right and downward, thereby prolonging the time of the exhaust gas in the water washing area, so that the exhaust gas can be more fully contacted with the water washing solution, and the water washing treatment effect is improved.

[0041] In the scheme of the present embodiment, by arranging the flow guide plate 150 obliquely along the air inlet direction of the air inlet 102 in the treatment space 101, the water washing solution sprayed by the spraying device 120 will flow along the inclined direction of the flow guide plate 150 after falling on the flow guide plate 150, so that the water washing solution is fully diffused on the top surface of the flow guide plate 150. When the exhaust gas diffused by the flow guide plate 150 flows to the upper side of the flow guide plate 150 from the through holes 103 of the flow guide plate 150, it can be contacted with the water washing solution diffused on the top surface of the flow guide plate 150, thereby further increasing the contact area between the water washing solution and the exhaust gas, and further improving the water washing treatment effect of the exhaust gas.

[0042] In addition, by setting the flow guide plate 150 to be inclined from top to bottom along the air inlet direction of the air inlet 102, the exhaust gas is diffused by the flow guide plate 150, and part of the exhaust gas flows downward along the inclined direction of the flow guide plate 150, thereby prolonging the flow time of the exhaust gas in the water washing area, so that the exhaust gas can be more fully contacted with the water washing solution, and the water washing treatment effect is improved.

[0043] It should be noted that in other embodiments, the flow guide plate can also be inclined from bottom to top along the air inlet direction of the air inlet.

[0044] As shown in FIG. 1, Figures 2-4 In an embodiment, the flow guide plate 150 has a first inclined section 151 and a second inclined section 152, the first inclined section 151 and the second inclined section 152 are connected along the air inlet direction of the air inlet 102, the first inclined section 151 is located at one end of the second inclined section 152 close to the air inlet 102, and the inclination of the first inclined section 151 relative to the horizontal plane is greater than the inclination of the second inclined section 152 relative to the horizontal plane, thereby forming a protrusion toward the side where the air inlet 102 is located at the connection position of the first inclined section 151 and the second inclined section 152.

[0045] Referring to FIG. 1, Figure 3 The first inclined section 151 and the second inclined section 152 are both plate-shaped structures. The first inclined section 151 is located on the left side of the second inclined section 152, the inclination of the first inclined section 151 relative to the horizontal plane is greater, that is, the slope is steeper, and the inclination of the second inclined section 152 relative to the horizontal plane is smaller, that is, the slope is gentler. The lower right side of the first inclined section 151 is connected to the upper left side of the second inclined section 152, and because the inclinations of the first inclined section 151 and the second inclined section 152 are different, the surface of the side of the flow guide plate 150 facing the air inlet 102 is not a flat surface, but a surface protruding toward the side of the air inlet 102 at the connection position of the first inclined section 151 and the second inclined section 152.

[0046] In the scheme of the present embodiment, by setting the flow guide plate 150 to have the first inclined section 151 and the second inclined section 152 connected along the air inlet direction of the air inlet 102, the inclination of the first inclined section 151 relative to the horizontal plane is greater than the inclination of the second inclined section 152 relative to the horizontal plane, thereby forming a protrusion toward the side where the air inlet 102 is located at the connection position of the first inclined section 151 and the second inclined section 152, so that the two sides of the protrusion of the flow guide plate 150 are two flat inclined surfaces, so that the exhaust gas diffused by the protrusion can flow more smoothly, that is, the exhaust gas can be more easily diffused by the protrusion of the flow guide plate 150, thereby improving the diffusion degree of the exhaust gas by the flow guide plate 150, and further improving the water washing treatment effect. Moreover, the plate-shaped first inclined section 151 and the second inclined section 152 are connected to form the flow guide plate 150 with a protrusion, and the structure is simpler.

[0047] It should be noted that in other embodiments, the first inclined section and the second inclined section can also be smoothly connected in a smooth curved surface structure. In addition, in other embodiments, the convex side surface and the side surface of the rest of the deflector plate are not smoothly connected.

[0048] As shown in Figures 2-4 the projection of the first inclined section 151 on the horizontal plane in the air intake direction of the air intake port 102 is less than the length of the projection of the second inclined section 152 on the horizontal plane in the air intake direction of the air intake port 102. Referring to Figure 3 the length d of the projection of the first inclined section 151 on the horizontal plane in the air intake direction of the air intake port 102, and the length D of the projection of the second inclined section 152 on the horizontal plane in the air intake direction of the air intake port 102, that is, d is less than D.

[0049] In the scheme of the present embodiment, by making the length of the projection of the first inclined section 151 on the horizontal plane in the air intake direction of the air intake port 102 less than the length of the projection of the second inclined section 152 on the horizontal plane in the air intake direction of the air intake port 102, the convexes where the first inclined section 151 and the second inclined section 152 meet are closer to the side where the air intake port 102 is located in the air intake direction of the air intake port 102, thereby helping to diffuse the exhaust gas in time and ensuring the diffusion effect of the exhaust gas.

[0050] As shown in Figure 5 In one embodiment, the exhaust treatment device 100 further comprises a circulating pump 600, which is arranged between the recovery tank 130 and the spraying device 120 and is used to deliver the liquid in the recovery tank 130 to the spraying device 120. Specifically, the circulating pump 600 communicates with the spraying device 120 and the recovery tank 130 through pipelines, so as to deliver the liquid in the recovery tank 130 to the spraying device 120, which is sprayed into the treatment space 101, contacts the exhaust gas entering the treatment space 101 from the air intake port 102, and then falls into the recovery tank 130, so that the water washing solution can be repeatedly used multiple times, thereby improving the utilization rate of the water washing solution.

[0051] It should be noted that in other embodiments, a delivery pump for storing space communication can be used as a circulating pump, that is, the delivery pump is connected to the storage space and the spraying device through two pipelines, and an electromagnetic valve is arranged on each pipeline to control the communication of the delivery pump with the storage space and the spraying device, respectively.

[0052] Referring to Figure 5As shown, in one embodiment, an ion concentration detector 700 is arranged in the recovery tank 130, the circulating pump 600 is configured to be turned off when the detection value of the ion concentration detector 700 is greater than a preset concentration threshold, and the delivery pump 300 is configured to be turned on when the detection value of the ion concentration detector 700 is greater than the preset concentration threshold. Specifically, the ion concentration detector 700 is used to detect the ion concentration of the water washing waste liquid in the recovery tank 130, so as to obtain the saturation condition of the water washing waste liquid in the recovery tank 130.

[0053] When the detection value of the ion concentration detector 700 is less than or equal to the preset concentration threshold, it indicates that the water washing waste liquid has not been saturated and can be recycled for water washing effect, so the circulating pump 600 is configured to be turned on when the detection value of the ion concentration detector 700 is less than or equal to the preset concentration threshold. When the detection value of the ion concentration detector 700 is greater than the preset concentration threshold, it indicates that the water washing waste liquid has reached saturation and is difficult to play a water washing effect, so the circulating pump 600 is configured to be turned off when the detection value of the ion concentration detector 700 is greater than the preset concentration threshold, and the water washing waste liquid in the recovery tank 130 is no longer used for water washing.

[0054] The delivery pump 300 is configured to be turned on when the detection value of the ion concentration detector 700 is greater than the preset concentration threshold, which can improve the delivery efficiency of the ions to the biomass in the storage space.

[0055] It should be noted that, Figure 5 the reference signs not described in the detailed description refer to the foregoing description.

[0056] As Figure 6As shown, in one embodiment, the biomass incineration system further comprises a feeding device 800 for feeding alkaline substances into the recovery tank 130 to make the liquid in the recovery tank 130 alkaline. Specifically, the feeding device 800 can be an openable and closable box arranged on the top of the recovery tank 130, and the alkaline substances are placed in the box, and after the box is opened, the alkaline substances fall into the recovery tank 130. Alternatively, the feeding device 800 can also be a conveying pipeline which is in communication with the recovery tank 130, so as to send the alkaline substances into the recovery tank. Specifically, the alkaline substances can be sodium hydroxide, sodium carbonate, calcium hydroxide, etc. By feeding the alkaline substances into the recovery tank 130, the liquid in the recovery tank 130 is made alkaline, and specifically, the pH value of the liquid is maintained between 6 and 8, so that when the liquid in the recovery tank 130 is sprayed into the treatment space 101 by the circulating pump 600, the content of sulfur dioxide in the flue gas can be reduced, thereby creating better conditions for subsequent carbon dioxide capture. In addition, the salt formed by the reaction of the added alkaline substances and sulfur dioxide can be solidified into solid salt after being discharged to the biomass storage bin through multiple incinerations, thereby saving the treatment measures of the recovered liquid and saving costs and processes. Since calcium salt is more easily solidified, the alkaline substance is preferably calcium hydroxide.

[0057] At this point, those skilled in the art should recognize that although the present application has been shown and described in detail in this paper, many other variants or modifications conforming to the principles of the present application can be directly determined or deduced according to the content disclosed in the present application without departing from the spirit and scope of the present application. Therefore, the scope of the present application should be understood and recognized as covering all these other variants or modifications.

Claims

1. A biomass incineration system, characterized by, The biomass incineration system comprises: a waste gas treatment device, comprising a tower body, a spraying device and a recovery tank, the tower body is internally formed with a treatment space for receiving waste gas generated by biomass combustion, the spraying device is arranged in the treatment space for conveying a water washing solution for water washing treatment of the waste gas into the treatment space, and the recovery tank is arranged at the bottom of the tower body and communicates with the treatment space for receiving the water washing solution contacted with the waste gas; and a biomass storage bin, provided with a storage space for storing biomass to be combusted, the storage space communicates with the recovery tank through a conveying pump so as to convey the water washing solution in the recovery tank into the storage space by the conveying pump.

2. The biomass incineration system according to claim 1, wherein a filter screen is arranged on the flow path between the recovery tank and the conveying pump, and the filter screen is used for filtering the liquid flowing from the recovery tank to the conveying pump.

3. The biomass incineration system according to claim 2, wherein a stirring device is arranged in the recovery tank, and the stirring device is used for stirring the liquid in the recovery tank.

4. The biomass incineration system according to claim 1, wherein a humidity sensor is arranged in the storage space, and the conveying pump is configured to be closed when the detection value of the humidity sensor is greater than a preset humidity threshold.

5. The biomass incineration system according to claim 1, wherein the waste gas treatment device further comprises a circulating pump arranged between the recovery tank and the spraying device for conveying the liquid in the recovery tank to the spraying device.

6. The biomass incineration system according to claim 5, wherein an ion concentration detector is arranged in the recovery tank, the circulating pump is configured to be closed when the detection value of the ion concentration detector is greater than a preset concentration threshold, and the conveying pump is configured to be opened when the detection value of the ion concentration detector is greater than the preset concentration threshold.

7. The biomass incineration system according to claim 1, wherein the biomass incineration system further comprises a feeding device for feeding an alkaline substance into the recovery tank so as to make the liquid in the recovery tank alkaline.

8. The biomass incineration system according to claim 1, wherein a sidewall of the tower body is provided with an air inlet communicating with the treatment space, the air inlet is used for receiving waste gas to be treated, the spraying device is arranged at a position higher than the air inlet, and the waste gas treatment device further comprises a flow guide plate arranged in the treatment space and located between the air inlet and the spraying device, the flow guide plate is provided with a plurality of through holes, and the flow guide plate is provided with a protrusion towards the side where the air inlet is located.

9. The biomass incineration system according to claim 8, wherein the flow guide plate is arranged to be inclined along the air inlet direction of the air inlet.

10. The biomass incineration system according to claim 9, wherein The guide plate is inclined from top to bottom along the air intake direction of the air intake port.

Images