Biomass gasification and sludge drying device

Abstract

The utility model belongs to the technical field of sludge drying, in particular to a biomass gasification sludge drying device, comprising a sludge drying drum and a biomass gasification combustion furnace, wherein the outer wall of the sludge drying drum is fixedly connected with an outer support frame, the outer support frame is filled with a heating filling layer, a plurality of transverse dense mesh tubes are embedded in the heating filling layer, a plurality of side-connected dense mesh tubes are fixedly connected between two adjacent transverse dense mesh tubes, one end of one of the transverse dense mesh tubes is fixedly connected with an "L"-shaped extended mesh tube, the inner walls of the transverse dense mesh tubes, the side-connected dense mesh tubes and the "L"-shaped extended mesh tubes are all fixedly connected with an inner support rod network; injecting water into the heating filling layer by means of a cooling water delivery pipe can quickly cool the heating filling layer and the back of the sludge drying drum to avoid damage to the inner wall of the sludge drying drum, and the transverse dense mesh tubes, the side-connected dense mesh tubes and the "L"-shaped extended mesh tubes are supported by the inner support rod network.

Description

Technical Field

[0001] The utility model belongs to the technical field of sludge drying, and in particular relates to a biomass gasification sludge drying device. Background Art

[0002] The biomass gasification sludge drying device gasifies the biomass raw materials through the biomass gasification furnace and uses them as fuel to heat and dry the sludge drying drum. The drying temperature can reach hundreds of degrees, and the device is in a semi-sealed state. It takes several hours or even dozens of hours to cool down the equipment after the equipment is shut down. When the exposed inner wall of the sludge drying drum is accelerated to cool down by injecting water, the water will be quickly evaporated by the high temperature. The evaporation will produce explosive water vapor pressure, which will cause fine damage to the inner wall of the sludge drying drum, increase the roughness of the inner wall of the sludge drying drum, and increase the phenomenon of sticking to the inner wall of the sludge drying drum and burning sludge in subsequent use. Utility Model Content

[0003] The utility model provides a biomass gasification sludge drying device, which has the characteristic of being able to quickly cool down.

[0004] The utility model provides the following technical solutions: a biomass gasification and drying sludge device, comprising a sludge drying drum and a biomass gasification combustion furnace, the outer wall of the sludge drying drum is fixedly connected to an outer support frame, the outer support frame is filled with a heating filling layer, a plurality of transverse dense mesh tubes are embedded in the heating filling layer, a plurality of side-connected dense mesh tubes are fixedly connected between two adjacent transverse dense mesh tubes, one end of one of the transverse dense mesh tubes is fixedly connected to an "L"-shaped extension mesh tube, the inner walls of the transverse dense mesh tubes, the side-connected dense mesh tubes and the "L"-shaped extension mesh tubes are all fixedly connected to an inner support rod net, and a cooling water delivery pipe is installed above the "L"-shaped extension mesh tube.

[0005] Wherein, the side wall of the outer support frame is fixedly connected with an outer extension pipe, the "L"-shaped extension network pipe is inserted into the outer extension pipe, and the output end of the cooling water delivery pipe extends into the outer extension pipe.

[0006] Wherein, the outer wall of the transverse dense network pipe is fixedly connected with a limit support rod, and the limit support rod is in conflict with the inner wall of the outer support frame.

[0007] Wherein, a water vapor discharge outer pipe is fixedly connected to the outer wall of the cooling water delivery pipe, and the water vapor discharge outer pipe is fixedly connected to the outer extension pipe.

[0008] Among them, the open end of the water vapor discharge outer tube is detachably connected with a sealing plug, the outer wall of the cooling water delivery pipe is fixedly connected with a side support rod, and the side support rod is fixedly connected to the inner wall of the water vapor discharge outer tube.

[0009] The beneficial effects of the utility model are as follows: by injecting water into the heating filling layer with the help of a cooling water delivery pipe, the heating filling layer and the back of the sludge drying drum can be quickly cooled down to avoid damage to the inner wall of the sludge drying drum; by supporting the transverse dense network pipes, the side-connected dense network pipes and the "L"-shaped extended network pipes with the help of an internal support rod network, a water vapor discharge network can be formed, so that the water vapor generated by the evaporation of the water body can pass through the transverse dense network pipes and the side-connected dense network pipes and then be discharged to the outside through the "L"-shaped extended network pipe, so as to maintain the pressure balance in the outer support frame, so that the water body can be smoothly injected into the outer support frame.

[0010] The parts not involved in the device are the same as those in the prior art or can be implemented by using the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the structure of the utility model;

[0012] Figure 2 for Figure 1 Enlarged view of part A in the middle;

[0013] Figure 3 It is a structural schematic diagram of the horizontal dense network management in the utility model.

[0014] In the figure: 1. sludge drying drum; 11. biomass gasification combustion furnace; 2. outer support frame; 21. heating filling layer; 22. outer extension pipe; 3. transverse dense mesh pipe; 31. side connection dense mesh pipe; 32. "L" shaped extension mesh pipe; 33. inner support rod net; 34. limit support rod; 4. cooling water delivery pipe; 41. water vapor discharge outer pipe; 42. sealing plug; 43. side support rod. DETAILED DESCRIPTION

[0015] See also Figure 1-Figure 3 The utility model provides the following technical solution: a biomass gasification sludge drying device, comprising a sludge drying drum (1) and a biomass gasification combustion furnace (11), wherein the outer wall of the sludge drying drum (1) is fixedly connected to an outer support frame (2), the outer support frame (2) is filled with a heating filling layer (21), a plurality of transverse dense mesh tubes (3) are embedded in the heating filling layer (21), a plurality of side connection dense mesh tubes (31) are fixedly connected between two adjacent transverse dense mesh tubes (3), one end of one of the transverse dense mesh tubes (3) is fixedly connected to an "L"-shaped extension mesh tube (32), the inner walls of the transverse dense mesh tube (3), the side connection dense mesh tube (31) and the "L"-shaped extension mesh tube (32) are all fixedly connected to an inner support rod network (33), and a cooling water delivery pipe (4) is installed above the "L"-shaped extension mesh tube (32).

[0016] In this embodiment: the staff installs the transverse dense mesh tube (3), the side connection dense mesh tube (31), the "L"-shaped extension mesh tube (32), the inner support rod net (33) and the limit support rod (34) on the inner wall of the outer support frame (2), then welds and fixes the outer support frame (2) to the outside of the sludge drying drum (1), and reserves a partial opening on the outer support frame (2). Then the staff fills the inner part of the outer support frame (2) with the heating filling layer (21) through the opening of the outer support frame (2), then installs a suitable plate in the opening of the outer support frame (2) and welds it to close the outer support frame (2). During use, the biomass gasification combustion furnace (11) uses the combustion of biomass raw materials as a heat source to generate heat externally. The support frame (2) and the heating filling layer (21) are heated to heat the sludge drying drum (1) and dry the sludge in the sludge drying drum (1). During the equipment shutdown and cooling process, water is injected into the heating filling layer (21) through the cooling water delivery pipe (4). The water absorbs the heat of the heating filling layer (21) by evaporation to cool the heating filling layer (21) and the back of the sludge drying drum (1). The sludge drying drum (1) is cooled quickly as a whole. The water does not directly contact the inner wall of the sludge drying drum (1) and does not damage the inner wall of the sludge drying drum (1). The inner support rod network (33) is used to support the lateral dense network pipe (3) and the side connection dense network pipe (3). The network tube (31) and the "L"-shaped extended network tube (32) are supported so that the transverse dense network tube (3), the side-connected dense network tube (31) and the "L"-shaped extended network tube (32) can be in an expanded state. A plurality of transverse dense network tubes (3) and a plurality of side-connected dense network tubes (31) can cooperate with the "L"-shaped extended network tube (32) to form a water vapor discharge network. The water vapor then passes through the side walls of the transverse dense network tube (3) and the side-connected dense network tube (31) into the internal space and is transported outward through the transverse dense network tube (3), the side-connected dense network tube (31) and the "L"-shaped extended network tube (32), so that the water vapor generated by the evaporation of the water body can be smoothly discharged outward, so as to maintain the outer support frame (2). The internal pressure is balanced so that water can be smoothly injected into the outer support frame (2). The heating filling layer (21) can be made of sand and stone materials. In the later stage of cooling, the heating filling layer (21) can absorb excess water to avoid water filling the internal space of the transverse dense network pipe (3) and the side connection dense network pipe (31). During subsequent heating, the sludge drying drum (1) will heat the heating filling layer (21) to dry the remaining water. When injecting water into the heating filling layer (21) through the cooling water delivery pipe (4), the staff should adjust the amount of water injected according to the heating temperature of the sludge drying drum (1) to avoid the cooling water delivery pipe (4) injecting excessive water into the heating filling layer (21).

[0017] The side wall of the outer support frame (2) is fixedly connected with an outer extension tube (22), the "L"-shaped extension mesh tube (32) is inserted into the outer extension tube (22), and the output end of the cooling water delivery pipe (4) extends into the outer extension tube (22); by providing the outer extension tube (22), it is possible to facilitate the discharge of water vapor and expansion gas, and at the same time facilitate the connection with the water vapor discharge outer tube (41); the "L"-shaped extension mesh tube (32) is inserted into the outer extension tube (22) to play a filtering role, and can prevent the heated filling layer (21) from leaking out of the outer extension tube (22).

[0018] The outer wall of the transverse dense network tube (3) is fixedly connected to a limit support rod (34), and the limit support rod (34) contacts the inner wall of the outer support frame (2); by providing the limit support rod (34), the transverse dense network tube (3) can be positioned, so that the transverse dense network tube (3) and the side connection dense network tube (31) can be located in the middle of the outer support frame (2), thereby avoiding displacement of the positions inside the transverse dense network tube (3) and the side connection dense network tube (31).

[0019] The outer wall of the cooling water delivery pipe (4) is fixedly connected to a water vapor discharge outer pipe (41), and the water vapor discharge outer pipe (41) is fixedly connected to the outer extension pipe (22); by arranging the water vapor discharge outer pipe (41) to wrap around the outer side of the cooling water delivery pipe (4), it is possible to facilitate the discharge of gas, so that both the cooling water delivery pipe (4) and the water vapor discharge outer pipe (41) can be connected to the outer extension pipe (22), without the need to open additional holes on the outer support frame (2).

[0020] The open end of the water vapor discharge outer tube (41) is detachably connected to a sealing plug (42); the outer wall of the cooling water delivery tube (4) is fixedly connected to a side support rod (43); the side support rod (43) is fixedly connected to the inner wall of the water vapor discharge outer tube (41); by providing the sealing plug (42), the opening of the water vapor discharge outer tube (41) can be sealed; when the water vapor discharge outer tube (41) is not needed, the water vapor discharge outer tube (41) is sealed to prevent foreign impurities from entering the water vapor discharge outer tube (41); by providing the side support rod (43), the stability of the cooling water delivery tube (4) can be increased to prevent the discharged water vapor from affecting the stability of the cooling water delivery tube (4).

[0021] The working principle and use process of the utility model are as follows: the biomass gasification combustion furnace (11) uses the combustion of biomass raw materials as a heat source to heat the outer support frame (2) and the heating filling layer (21), so as to heat the sludge drying drum (1) and dry the sludge in the sludge drying drum (1); during the equipment shutdown and cooling process, water is injected into the heating filling layer (21) through the cooling water delivery pipe (4), and the heat of the heating filling layer (21) is absorbed by the evaporation of the water, so as to cool the heating filling layer (21) and the back of the sludge drying drum (1), so as to dry the sludge drying drum (1). The whole is cooled rapidly, the transverse dense network tubes (3), the side-connected dense network tubes (31) and the "L"-shaped extended network tubes (32) are in an expanded state, and a plurality of transverse dense network tubes (3) and a plurality of side-connected dense network tubes (31) cooperate with the "L"-shaped extended network tubes (32) to form a water vapor discharge network, and the water vapor then passes through the side walls of the transverse dense network tubes (3) and the side-connected dense network tubes (31) into the internal space, and is transported and discharged outwardly through the transverse dense network tubes (3), the side-connected dense network tubes (31) and the "L"-shaped extended network tubes (32), so as to maintain the pressure balance in the outer support frame (2).

Claims

1. A biomass gasification sludge drying device, comprising a sludge drying drum (1) and a biomass gasification combustion furnace (11), characterized in that: The outer wall of the sludge drying drum (1) is fixedly connected to an outer support frame (2), the outer support frame (2) is filled with a heating filling layer (21), a plurality of transverse dense mesh tubes (3) are embedded in the heating filling layer (21), a plurality of side connection dense mesh tubes (31) are fixedly connected between two adjacent transverse dense mesh tubes (3), one end of one of the transverse dense mesh tubes (3) is fixedly connected to an "L"-shaped extension mesh tube (32), the inner walls of the transverse dense mesh tube (3), the side connection dense mesh tube (31) and the "L"-shaped extension mesh tube (32) are all fixedly connected to an inner support rod network (33), and a cooling water delivery pipe (4) is installed above the "L"-shaped extension mesh tube (32).

2. The biomass gasification sludge drying device according to claim 1 is characterized in that: The side wall of the outer support frame (2) is fixedly connected to an outer extension tube (22), the "L"-shaped extension network tube (32) is inserted into the outer extension tube (22), and the output end of the cooling water delivery pipe (4) extends into the outer extension tube (22).

3. The biomass gasification sludge drying device according to claim 1 is characterized in that: The outer wall of the transverse dense network tube (3) is fixedly connected to a limit support rod (34), and the limit support rod (34) abuts against the inner wall of the outer support frame (2).

4. The biomass gasification sludge drying device according to claim 2 is characterized in that: The outer wall of the cooling water delivery pipe (4) is fixedly connected to a water vapor discharge outer pipe (41), and the water vapor discharge outer pipe (41) is fixedly connected to the outer extension pipe (22).

5. The biomass gasification sludge drying device according to claim 4 is characterized in that: The open end of the water vapor discharge outer tube (41) is detachably connected to a sealing plug (42), the outer wall of the cooling water delivery tube (4) is fixedly connected to a side support rod (43), and the side support rod (43) is fixedly connected to the inner wall of the water vapor discharge outer tube (41).

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