A device for sludge carbonization energy recycling

Abstract

The utility model discloses a sludge carbonide energy recycling device, it includes base, the base top is provided with support seat, support seat top is provided with outer drum, and the inner wall of outer drum is provided with inner tube, heat abstractor, heat abstractor sets up in the inner tube outer circumferential side, sludge throwing mechanism, sludge throwing mechanism sets up in the outer drum inner circumferential side. This kind of sludge carbonide energy recycling device, through setting up heat abstractor in the inner tube outer circumferential side, greatly increased the heat exchange area, make the heat of high temperature biochar can be quickly, efficiently exported, ensure the uniformity and completeness of biochar heat release, thereby realized the maximization of waste heat recovery efficiency, through setting up sludge throwing mechanism in the outer drum inner circumferential side, effectively prevent the sludge agglomeration, more can ensure that all wet sludge particles can with the surface of incandescent helical fin full contact, carry out the violent heat exchange, thereby realized even and thorough drying.

Description

Technical Field

[0001] This utility model relates to the field of sludge treatment technology, specifically to a device for energy recovery and utilization of sludge carbonides. Background Technology

[0002] The sludge is treated using a medium-temperature carbonization method. Small-particle sludge biochar is discharged after pyrolysis, typically at a temperature of 400℃ to 550℃, yielding a considerable amount of recoverable sensible heat. To prevent the high-temperature sludge biochar from being directly discharged into the air and combusting, multi-stage water cooling is commonly used in engineering to lower it to near room temperature. The sensible heat in the sludge biochar is then discharged after heat exchange with the water medium and is not utilized.

[0003] Existing sludge drying and carbonization technologies only focus on the recovery and utilization of waste heat from sludge drying flue gas and carbonization flue gas, while neglecting the utilization of waste heat from the end products of sludge drying and carbonization. Existing processes all use multi-stage water cooling to cool sludge biochar, and the water that has undergone sufficient heat exchange is directly discharged from the system, which not only wastes a lot of water resources, but also wastes the sensible heat in sludge biochar. Utility Model Content

[0004] The purpose of this section is to outline some aspects of the embodiments of this utility model and to briefly introduce some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be used to limit the scope of this utility model.

[0005] 1. Technical problems to be solved:

[0006] To address the shortcomings of existing sludge drying and carbonization technologies, which focus solely on the recovery and utilization of waste heat from sludge drying and carbonization flue gas while neglecting the utilization of waste heat from the final products of sludge drying and carbonization; and to prevent the use of multi-stage water cooling for sludge biochar in existing processes, which directly discharges the fully heat-exchanged water outside the system, resulting in a significant waste of water resources and the loss of sensible heat from the sludge biochar, this invention is proposed.

[0007] Therefore, the purpose of this invention is to provide a device for energy recovery and utilization of sludge carbon, which can make full use of the sensible heat during the cooling process of sludge biochar.

[0008] 2. Technical Solution:

[0009] To solve the above-mentioned technical problems, according to one aspect of the present invention, the present invention provides the following technical solution:

[0010] A device for energy recovery and utilization of sludge carbonization includes a base, a support seat at the top of the base, an outer roller at the top of the support seat, and an inner cylinder on the inner wall of the outer roller.

[0011] A heat dissipation mechanism is disposed on the outer periphery of the inner cylinder;

[0012] A mud-lifting mechanism is disposed on the inner circumference of the outer drum.

[0013] As a preferred embodiment of the device for energy recovery and utilization of sludge carbonides according to the present invention, a baffle a is provided at one end of the inner cylinder, and the heat dissipation mechanism includes a auger, which is disposed on the inner wall of the inner cylinder;

[0014] A rotating groove a is provided on the outer wall of the baffle a, and a motor a is provided at the outer end of the rotating groove a. The output end of the motor a is provided at the drive end of the auger.

[0015] Multiple mounting slots a are provided on the outer periphery of the inner cylinder;

[0016] Multiple mounting plates a are provided on the outer periphery of the inner cylinder. The top of each mounting plate a is provided with a mounting groove b. The sidewalls of the mounting plates a are provided with spiral fins. The spiral fins are spirally arranged on the outer periphery of the inner cylinder.

[0017] Multiple fixing bolts a are disposed on the inner walls of the mounting groove a and the mounting groove b.

[0018] As a preferred embodiment of the device for energy recovery and utilization of sludge carbonization according to the present invention, the auger includes an inner shaft and a spiral blade, wherein the spiral blade is disposed on the outer periphery of the inner shaft.

[0019] As a preferred embodiment of the device for energy recovery and utilization of sludge carbonides according to the present invention, the sludge lifting mechanism includes: a plurality of fixed grooves a, wherein the plurality of fixed grooves a are arranged on the inner circumference of the outer roller;

[0020] Multiple mounting plates b are provided on the inner circumference of the outer roller, and the top of the multiple mounting plates b is provided with a fixing groove b, and the sidewalls of the multiple mounting plates b are provided with mud-lifting plates.

[0021] Multiple fixing bolts b are disposed on the inner walls of the fixing groove a and the fixing groove b;

[0022] Rotating groove b, wherein the rotating groove b is disposed on the outer periphery of the outer roller;

[0023] Motor b is mounted on the top of the base, and a fixing frame is provided between the motor b and the base. The motor b is connected to the rotating groove b by a belt drive.

[0024] As a preferred embodiment of the device for energy recovery and utilization of sludge carbonization according to the present invention, the side wall of the baffle a is provided with a feed inlet a, the other end of the inner cylinder is provided with a baffle b, and the side wall of the baffle b is provided with a discharge outlet a.

[0025] In a preferred embodiment of the device for energy recovery and utilization of sludge carbonization according to the present invention, a support ring a is provided at one end of the outer roller, a baffle a is provided on the inner wall of the support ring a, and a discharge port b is provided on the side wall of the support ring a. A support ring b is provided at the other end of the outer roller, a baffle b is provided on the inner wall of the support ring b, and a feed port b is provided on the side wall of the support ring b.

[0026] In a preferred embodiment of the device for energy recovery and utilization of sludge carbonization according to the present invention, the support base includes a bracket and a collar, the collar is disposed at the top of the bracket, the inner wall of the collar is provided with an outer roller, and the collar is inclined at a certain angle.

[0027] 3. Beneficial effects:

[0028] Compared with the prior art, the beneficial effects of this utility model are:

[0029] This device for energy recovery and utilization of sludge carbonization greatly increases the heat exchange area by setting a heat dissipation mechanism on the outer periphery of the inner cylinder, so that the heat of high-temperature biochar can be quickly and efficiently discharged, ensuring the uniformity and thoroughness of the heat release of biochar, thereby maximizing the waste heat recovery efficiency.

[0030] This device for energy recovery and utilization of sludge carbonization effectively prevents sludge from sticking by setting a sludge lifting mechanism on the inner circumference of the outer drum. It also ensures that all wet sludge particles can fully contact the hot spiral fin surface and undergo intense heat exchange, thereby achieving uniform and thorough drying. Attached Figure Description

[0031] To more clearly illustrate the technical solutions of the embodiments of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and detailed embodiments. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0032] Figure 1 This is a schematic diagram of the overall structure of a device for energy recovery and utilization of sludge carbonides according to the present invention.

[0033] Figure 2 This is a schematic diagram of the heat dissipation mechanism of a device for energy recovery and utilization of sludge carbonides according to the present invention.

[0034] Figure 3 This is a schematic diagram of the baffle a structure of the device for energy recovery and utilization of sludge carbonides according to the present invention;

[0035] Figure 4 This is a schematic diagram of the lifting mechanism structure of a device for energy recovery and utilization of sludge carbonides according to the present invention.

[0036] Figure 5 This is a schematic diagram of the support structure of a device for energy recovery and utilization of sludge carbonides according to the present invention.

[0037] Explanation of the numbers in the diagram: 1. Base; 11. Inner shaft; 12. Spiral blade; 2. Support seat; 21. Bracket; 22. Collar; 3. Inner cylinder; 31. Baffle a; 32. Feed inlet a; 33. Baffle b; 34. Discharge outlet a; 4. Outer roller; 41. Support ring a; 42. Discharge outlet b; 43. Support ring b; 44. Feed inlet b; 100. Heat dissipation mechanism; 101. Screw; 102. Rotor 103. Moving slot a; 104. Motor a; 105. Mounting slot a; 106. Mounting plate a; 107. Mounting slot b; 108. Spiral fins; 109. Fixing bolt a; 200. Mud lifting mechanism; 201. Fixing slot a; 202. Mounting plate b; 203. Fixing slot b; 204. Mud lifting plate; 205. Fixing bolt b; 206. Rotating slot b; 207. Motor b; 208. Fixing frame. Detailed Implementation

[0038] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0039] This utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not be construed as limiting the scope of protection of this utility model. In actual manufacturing, the three-dimensional spatial dimensions of length, width, and depth should be included.

[0040] The orientation or positional relationship indicated in the terminology is based on the orientation or positional relationship shown in the accompanying drawings and is only for the convenience of describing the present invention and simplifying the description. It is not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0041] The term "connection method" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0042] The embodiments of this utility model will now be described in further detail with reference to the accompanying drawings.

[0043] This utility model provides an overall structural schematic diagram of an embodiment of a device for energy recovery and utilization from sludge carbonides, including:

[0044] Please see Figures 1-5 The device for energy recovery and utilization of sludge carbonization in this embodiment includes a base 1 with a support seat 2 welded to the top, an outer roller 4 rotatably connected to the top of the support seat 2, and an inner cylinder 3 provided on the inner wall of the outer roller 4.

[0045] The heat dissipation mechanism 100 is located on the outer periphery of the inner cylinder 3, which can dissipate the heat of the sludge biochar inside the inner cylinder 3.

[0046] The mud-lifting mechanism 200 is located on the inner circumference of the outer roller 4, which can lift up the wet mud between the outer roller 4 and the inner roller 3.

[0047] It is worth noting that, in order to dissipate the heat of the sludge biochar inside the inner cylinder 3, a baffle a31 is welded to one end of the inner cylinder 3. The heat dissipation mechanism 100 includes: a auger 101 rotatably connected to the inner wall of the inner cylinder 3, which can push the sludge biochar inside the inner cylinder 3 and increase the contact frequency between the sludge biochar and the inner wall of the inner cylinder 3.

[0048] A rotating groove a102 is formed on the outer wall of the baffle a31. A motor a103 is bolted to the outer end of the rotating groove a102. The output end of the motor a103 is rotatably connected to the drive end of the auger 101.

[0049] Multiple mounting slots a104 are formed on the outer periphery of the inner cylinder 3, multiple mounting plates a105 are bolted to the outer periphery of the inner cylinder 3, multiple mounting plates a105 have mounting slots b106 at their top ends, multiple mounting plates a105 have spiral fins 107 welded to their sidewalls, and multiple spiral fins 107 are spirally bolted to the outer periphery of the inner cylinder 3, which can increase the contact area with wet sludge;

[0050] Multiple fixing bolts a108 are threadedly connected to the inner walls of mounting slots a104 and b106, allowing for the replacement of the spiral fins 107.

[0051] Next, in order to promote the biochar production of sludge, specifically, the auger 101 includes an inner shaft 11 and a spiral blade 12, with the spiral blade 12 welded to the outer periphery of the inner shaft 11.

[0052] Meanwhile, in order to lift the wet sludge, specifically, the sludge lifting mechanism 200 includes: multiple fixed grooves a201 opened on the inner circumference of the outer roller 4;

[0053] Multiple mounting plates b202 are bolted to the inner circumference of the outer roller 4. The top of the multiple mounting plates b202 is provided with a fixing groove b203. The sidewalls of the multiple mounting plates b202 are welded with mud-lifting plates 204. The wet sludge can be scooped up by the mounting plates b202 and then lifted up by the elastic deformation of the mud-lifting plates 204.

[0054] Multiple fixing bolts b205 are threadedly connected to the inner walls of fixing grooves a201 and b203, allowing the mud-lifting plate 204 to be replaced.

[0055] The rotating groove b206 is opened on the outer periphery of the outer roller 4. The motor b207 is bolted to the top of the base 1 and the fixed frame 208. The fixed frame 208 is welded to the top of the base 1. The motor b207 is connected to the rotating groove b206 by belt drive. The outer roller 4 rotates the auxiliary mounting plate b202 to scoop up the wet sludge.

[0056] Furthermore, for feeding purposes, specifically, a feed inlet a32 is provided on the side wall of baffle a31, and a baffle b33 is welded to the other end of the inner cylinder 3, with a discharge outlet a34 provided on the side wall of baffle b33.

[0057] It is worth noting that, specifically, for material discharge, a support ring a41 is welded to one end of the outer roller 4, a baffle a31 is rotatably connected to the inner wall of the support ring a41, and a discharge port b42 is opened on the side wall of the support ring a41. A support ring b43 is welded to the other end of the outer roller 4, a baffle b33 is rotatably connected to the inner wall of the support ring b43, and a feed port b44 is opened on the side wall of the support ring b43.

[0058] Finally, for support, specifically, the support base 2 includes a bracket 21 and a collar 22. The collar 22 is welded to the top of the bracket 21. An outer roller 4 is rotatably connected to the inner wall of the collar 22. The collar 22 is tilted at a certain angle, preferably 2° to 6°, to assist in loading and unloading materials.

[0059] Combination Figures 1-5 The device for energy recovery and utilization from sludge carbonization according to this embodiment is used in the following specific process:

[0060] 1: According to actual use, during operation, high-temperature sludge biochar is continuously fed into the inner cylinder 3 through the feed port a32 on the baffle a31; the motor a103 is started to drive the auger 101 to rotate, thereby slowly pushing the high-temperature biochar in the inner cylinder 3 to the other end.

[0061] 2: During the biochar transport process, the large amount of heat it carries is conducted through the inner cylinder 3 to the spiral fins 107 tightly installed on the outside of the cylinder wall; these spiral fins 107 greatly expand the heat dissipation surface and become a highly efficient heat radiator.

[0062] 3: Wet sludge enters through the feed port b44 at the other end of the outer drum 4; start the motor b207 to drive the outer drum 4 to rotate slowly; the mud-lifting plate 204 fixed on its inner wall continuously lifts the wet sludge at the bottom to a certain height and then throws it down as the outer drum 4 rotates, forming a uniform "mud waterfall".

[0063] 4: These falling wet sludge particles come into full contact with the hot spiral fins 107, and the moisture is quickly evaporated; the dried sludge is discharged from the discharge port b42 under the action of gravity and the tilting of the inner cylinder 2 and the outer roller 4; while the biochar cooled after heat exchange is discharged from the discharge port a34 at the other end of the inner cylinder 3.

[0064] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A device for energy recovery and utilization from sludge carbonization, characterized in that, It includes a base (1), a support seat (2) is provided at the top of the base (1), an outer roller (4) is provided at the top of the support seat (2), and an inner cylinder (3) is provided on the inner wall of the outer roller (4); A heat dissipation mechanism (100) is provided on the outer periphery of the inner cylinder (3); A mud-lifting mechanism (200) is disposed on the inner circumference of the outer drum (4).

2. The device for energy recovery and utilization of sludge carbonization according to claim 1, characterized in that, The inner cylinder (3) is provided with a baffle a (31) at one end, and the heat dissipation mechanism (100) includes a auger (101), which is disposed on the inner wall of the inner cylinder (3); A rotating groove a (102) is provided on the outer wall of the baffle a (31), and a motor a (103) is provided at the outer end of the rotating groove a (102). The output end of the motor a (103) is provided at the driving end of the auger (101). Multiple mounting slots a (104) are provided on the outer periphery of the inner cylinder (3); Multiple mounting plates a (105) are provided on the outer periphery of the inner cylinder (3). The top of the multiple mounting plates a (105) is provided with mounting groove b (106). The sidewalls of the multiple mounting plates a (105) are provided with spiral fins (107). The multiple spiral fins (107) are spirally arranged on the outer periphery of the inner cylinder (3). Multiple fixing bolts a (108) are provided on the inner walls of the mounting groove a (104) and the mounting groove b (106).

3. The device for energy recovery and utilization of sludge carbonization according to claim 2, characterized in that, The jiaolong (101) includes an inner shaft (11) and a spiral blade (12), with the spiral blade (12) disposed on the outer periphery of the inner shaft (11).

4. The device for energy recovery and utilization of sludge carbonides according to claim 3, characterized in that, The mud-lifting mechanism (200) includes: a plurality of fixed grooves a (201), the plurality of fixed grooves a (201) being disposed on the inner circumference of the outer roller (4); Multiple mounting plates b (202) are provided on the inner circumference of the outer roller (4), and a fixing groove b (203) is provided at the top of the multiple mounting plates b (202), and a mud-lifting plate (204) is provided on the side wall of the multiple mounting plates b (202); Multiple fixing bolts b (205) are provided on the inner walls of the fixing grooves a (201) and b (203); Rotating groove b (206), the rotating groove b (206) is disposed on the outer periphery of the outer roller (4); Motor b (207) is located at the top of the base (1). A fixing frame (208) is provided between the motor b (207) and the base (1). The motor b (207) is connected to the rotating groove b (206) by belt drive.

5. The device for energy recovery and utilization of sludge carbonides according to claim 4, characterized in that, The side wall of the baffle a (31) is provided with a feed inlet a (32), and the other end of the inner cylinder (3) is provided with a baffle b (33), and the side wall of the baffle b (33) is provided with a discharge outlet a (34).

6. The device for energy recovery and utilization of sludge carbonides according to claim 5, characterized in that, One end of the outer roller (4) is provided with a support ring a (41), the baffle a (31) is provided on the inner wall of the support ring a (41), the side wall of the support ring a (41) is provided with a discharge port b (42), the other end of the outer roller (4) is provided with a support ring b (43), the baffle b (33) is provided on the inner wall of the support ring b (43), and the side wall of the support ring b (43) is provided with a feed port b (44).

7. The device for energy recovery and utilization of sludge carbonides according to claim 6, characterized in that, The support base (2) includes a bracket (21) and a collar (22). The collar (22) is located at the top of the bracket (21). An outer roller (4) is provided on the inner wall of the collar (22). The collar (22) is tilted at a certain angle.

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