Drying incineration equipment for municipal sludge treatment

Abstract

The utility model discloses drying incineration equipment for municipal sludge treatment, which comprises a rotary kiln, a sludge inlet seat and an ash discharge seat, and further comprises a heat conduction mechanism, and the sludge inlet seat and the ash discharge seat are mounted at two ends of the rotary kiln. The heat conduction mechanism comprises a bottom connecting pipe, a hopper pipe, an upper connecting pipe, a spiral guide pipe, a leading-in pipe, a leading-out pipe, a bent connecting pipe, a connecting cover, a draught fan, a supporting plate, a heat guiding pipe and an air return pipe, and the air return pipe and the heat guiding pipe with the supporting plate are arranged at an ash discharging base of the rotary kiln. Then, a heat conduction mechanism is arranged on a sludge inlet seat of the rotary kiln and can be assembled with an air return pipe and a heat guide pipe with a supporting plate to form a heat guide device, the heat conduction mechanism is assembled at the sludge inlet seat of the rotary kiln to form a transfer sludge inlet structure, and when the rotary kiln runs, heat at an ash discharging seat can be guided into a transfer sludge inlet hopper pipe by the heat conduction mechanism; therefore, heat at the ash discharge seat can be effectively utilized for preheating municipal sludge, and the treatment heat utilization efficiency of the municipal sludge at the rotary kiln is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to sludge treatment technical field especially municipal sludge treatment with dry burning equipment. BACKGROUND

[0002] Municipal refers to the various administrative management work of city, and municipal sludge usually needs to be dry burning when carrying out sludge treatment, and sludge burning is a kind of process of sludge treatment. It uses the incinerator to heat and dry the dewatered sludge, and then oxidizes the organic matter in the sludge at high temperature, so that the sludge becomes a small amount of ash. Municipal sludge usually selects rotary kiln as sludge treatment dry burning equipment when carrying out dry burning treatment.

[0003] At present, municipal sludge is sent to the incineration plant after dewatering treatment, and then sent into the furnace body of rotary kiln through feeding equipment for burning. When the rotary kiln discharges the sludge residues, the discharge cavity often contains a lot of heat, and when the sludge rotary kiln discharges, it often needs to be preheated before dry and pyrolysis, which makes the heat utilization of municipal sludge treatment in rotary kiln have some deficiencies. Therefore, we propose a municipal sludge treatment dry burning equipment. UTILITY MODEL CONTENT

[0004] The main purpose of the utility model is to provide a municipal sludge treatment dry burning equipment. The air return pipe and the heat guide pipe with supporting plate are arranged at the ash discharge seat of rotary kiln, and then the heat guide mechanism is arranged at the sludge inlet seat of rotary kiln, which can be assembled with the air return pipe and the heat guide pipe with supporting plate to form a heat guide device. The heat guide mechanism is assembled into a transfer sludge inlet structure at the sludge inlet seat of rotary kiln. When the rotary kiln is running, the heat at the ash discharge seat can be introduced into the transfer sludge inlet hopper pipe by the heat guide mechanism, so that the heat at the ash discharge seat can be effectively utilized for the preheating of municipal sludge, and the heat utilization efficiency of municipal sludge treatment in rotary kiln is improved. The problem in the background art can be effectively solved.

[0005] To achieve the above purpose, the technical scheme adopted by the utility model is as follows:

[0006] The utility model provides a kind of municipal sludge treatment with drying incineration equipment, including rotary kiln, mud seat and ash seat, the rotary kiln is equipped with mud seat and ash seat at both ends, further including heat conduction mechanism, the heat conduction mechanism includes bottom connecting pipe, bucket pipe, upper connecting pipe, spiral duct, introduction pipe, outlet pipe, bend connecting pipe, connecting cover, fan, supporting plate, heat pipe and return air pipe, the bottom connecting pipe is pressed and is placed at the seat mouth of mud seat, and bottom connecting pipe is welded with upper connecting pipe upwards through bucket pipe above, the outer pipe mouth of bottom connecting pipe and upper connecting pipe away from bucket pipe is welded with flange, and the flange of bottom connecting pipe below is connected with the seat mouth outside of mud seat, spiral duct is fixed in the bucket pipe, and the both ends pipe body of spiral duct that stretches out from bucket pipe is welded with introduction pipe and outlet pipe respectively, introduction pipe and outlet pipe are welded with bend connecting pipe and return air pipe respectively, and return air pipe is welded intercommunication into the seat cavity of ash seat, bend connecting pipe below intercommunication is welded with connecting cover, and heat pipe is welded intercommunication with the ash seat below connecting cover, the upper pipe mouth of heat pipe is welded with the supporting plate for installing fan outside, and the outlet of fan is inserted with connecting cover.

[0007] Further, the bottom cover pipe is inserted into the outlet of fan below the cover mouth of connecting cover, and the outlet of fan is communicated with the bottom cover pipe;

[0008] By adopting the above technical scheme, the connecting cover is inserted into the outlet of fan with bottom cover pipe for communication.

[0009] Further, the both ends pipe mouth of spiral duct is integrally formed with straight pipe body, and the straight pipe body of spiral duct stretches out from the pipe body of bucket pipe, and the spiral duct is welded with the penetration of bucket pipe;

[0010] By adopting the above technical scheme, the spiral duct stretches out from the bucket pipe with straight pipe body, and then the spiral duct can obtain welding support at the bucket pipe.

[0011] Further, the surface of supporting plate is provided with mounting hole, and the mounting hole of supporting plate is locked by bolt between the seat plate hole of fan;

[0012] By adopting the above technical scheme, the supporting plate with mounting hole and the seat plate of fan can be locked by screwing bolt.

[0013] Further, the upper end small cover mouth of connecting cover is welded at the pipe mouth of bend connecting pipe, and the cover body of connecting cover is provided with bucket-shaped cover cavity;

[0014] By adopting the above technical scheme, the connecting cover is welded at the bend connecting pipe with upper end small cover mouth for communication, and the bucket-shaped cover cavity of connecting cover can accommodate high-temperature wind to enter the bend connecting pipe upwards.

[0015] Further, the pipe body inner wall of bucket pipe is welded with supporting block, and the block body of supporting block is welded with the pipe body of spiral duct;

[0016] By adopting the above technical solution, the spiral conduit is supported by welding the support block inside the bucket tube.

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

[0018] The utility model provides a return air duct and a heat introduction pipe with a supporting plate at the ash discharge seat of the rotary kiln, and then provides a heat conduction mechanism at the mud inlet seat of the rotary kiln, which can be assembled with the return air duct and the heat introduction pipe with the supporting plate to form a heat introduction device. The heat conduction mechanism is assembled at the mud inlet seat of the rotary kiln to form a transfer mud inlet structure. When the rotary kiln is running, the heat at the ash discharge seat can be introduced into the bucket pipe of the transfer mud inlet by the heat conduction mechanism, so that the heat at the ash discharge seat can be effectively used for preheating the municipal sludge entering, thereby improving the heat utilization efficiency of the municipal sludge treatment in the rotary kiln.

[0019] After the bucket tube of the heat transfer mechanism generates preheating temperature, the heat can be supplied to the mud feeding pipe above the upper connecting pipe and the bottom connecting pipe, so that the sludge can be preheated when entering the running rotary kiln. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall structure of a drying and incineration device for municipal sludge treatment according to the present utility model.

[0021] Figure 2 This is a schematic diagram of the disassembly of the heat conduction mechanism, mud inlet seat, supporting plate and return air duct of a drying and incineration equipment for municipal sludge treatment in the utility model.

[0022] Figure 3 This is an exploded diagram of the heat conduction mechanism of a drying and incineration device for municipal sludge treatment according to the utility model.

[0023] Figure 4 This is a side cross-sectional view of the bucket pipe and bottom connecting pipe of a drying and incineration device for municipal sludge treatment according to the utility model.

[0024] In the figure: 1. Rotary kiln; 2. Mud inlet seat; 3. Ash discharge seat; 4. Heat transfer mechanism; 5. Bottom connecting pipe; 6. Bucket pipe; 7. Upper connecting pipe; 8. Flange; 9. Spiral guide tube; 10. Inlet pipe; 11. Outlet pipe; 12. Bend connecting pipe; 13. Connecting cover; 14. Fan; 15. Support plate; 16. Heat pipe; 17. Return air pipe; 18. Support block. DETAILED DESCRIPTION

[0025] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0026] like Figures 1-4The utility model discloses a kind of municipal sludge treatment with drying incineration equipment, including rotary kiln 1, mud seat 2 and ash seat 3, the rotary kiln 1 is equipped with mud seat 2 and ash seat 3 at both ends, further including heat conduction mechanism 4, the heat conduction mechanism 4 includes bottom connecting pipe 5, bucket pipe 6, upper connecting pipe 7, spiral duct 9, introduction pipe 10, lead-out pipe 11, bend connecting pipe 12, connecting cover 13, fan 14, supporting plate 15, heat lead pipe 16 and air return pipe 17, the seat mouth of mud seat 2 is pressed and released with bottom connecting pipe 5, and bottom connecting pipe 5 is welded with upper connecting pipe 7 upwards through bucket pipe 6, the outer pipe mouth of bottom connecting pipe 5 and upper connecting pipe 7 away from bucket pipe 6 is welded with flange plate 8, and the flange plate 8 flange of bottom connecting pipe 5 below is connected outside the seat mouth of mud seat 2, spiral duct 9 is fixed in bucket pipe 6, and the both ends pipe body of spiral duct 9 that extends out of bucket pipe 6 is welded with introduction pipe 10 and lead-out pipe 11 respectively, introduction pipe 10 and lead-out pipe 11 are welded with bend connecting pipe 12 and air return pipe 17 respectively, and air return pipe 17 is welded intercommunication into the seat cavity of ash seat 3, bend connecting pipe 12 below intercommunication is welded with connecting cover 13, and connecting cover 13 below is welded with heat lead pipe 16 at ash seat 3 in vertical intercommunication, the upper pipe mouth of heat lead pipe 16 is welded with the supporting plate 15 for installing fan 14 outside, and the air outlet of fan 14 is inserted with connecting cover 13.

[0027] Wherein, the cover mouth of the connecting cover 13 extends with bottom cover pipe below, and the bottom cover pipe is inserted into the air outlet of the fan 14;

[0028] By adopting the above technical scheme, the connecting cover 13 is inserted into the air outlet of the fan 14 with the bottom cover pipe to communicate.

[0029] Wherein, the both ends pipe mouth of the spiral duct 9 is integrally formed with straight pipe body, and the straight pipe body of the spiral duct 9 extends out of the pipe body of the bucket pipe 6, and the spiral duct 9 is welded and connected at the penetrating position of the bucket pipe 6;

[0030] By adopting the above technical scheme, the spiral duct 9 extends out of the bucket pipe 6 with the straight pipe body, and then the spiral duct 9 can obtain welding support at the bucket pipe 6.

[0031] Wherein, the plate body surface of the supporting plate 15 is provided with mounting hole, and the mounting hole of the supporting plate 15 is locked through bolt between the seat plate hole of the fan 14;

[0032] By adopting the above technical scheme, the supporting plate 15 provided with mounting hole and the seat plate of the fan 14 can be locked by rotating bolt.

[0033] Wherein, the upper end small cover mouth of the connecting cover 13 is welded at the pipe mouth of the bend connecting pipe 12, and the cover body of the connecting cover 13 is provided with bucket-shaped cover cavity;

[0034] Through adopting the technical scheme, the upper end small cover mouth of the connecting cover 13 is welded at the bending connecting pipe 12 for communication, and the bucket-shaped cover cavity of the connecting cover 13 can accommodate high-temperature wind to enter the bending connecting pipe 12 upward.

[0035] The pipe body inner wall of the bucket pipe 6 is welded with a supporting block 18, and the block body of the supporting block 18 is welded with the pipe body of the spiral guide pipe 9.

[0036] Through adopting the technical scheme, the spiral guide pipe 9 is welded with the supporting block 18 in the bucket pipe 6 for support.

[0037] It should be noted that the utility model is a kind of municipal sludge treatment with drying incineration equipment, back air pipe 17 and heat guide pipe 16 with supporting plate 15 are arranged at the ash discharge seat 3 of rotary kiln 1, then the mud inlet seat 2 of rotary kiln 1 is provided with heat guide mechanism 4, the bottom connecting pipe 5 of heat guide mechanism 4 is connected with flange plate 8 flange at the mud inlet seat 2, then the upper connecting pipe 7 at the top of the bucket pipe 6 above the bottom connecting pipe 5 can be connected with the pipeline of the mud supply equipment, at this time, then the straight pipe body of the spiral guide pipe 9 extending out of the bucket pipe 6 is connected with bending connecting pipe 12 and back air pipe 17 respectively by introduction pipe 10 and outlet pipe 11, and the outer pipe of bending connecting pipe 12 has connecting cover 13 that can be clamped into the air outlet of fan 14, and fan 14 is installed at the pipe opening of heat guide pipe 16 on supporting plate 15 and is close to heat guide pipe 16 for heat introduction, when municipal sludge enters the mud inlet seat 2 through upper connecting pipe 7, bucket pipe 6 and bottom connecting pipe 5, sludge is preheated, dried and pyrolyzed in rotary kiln 1 below mud inlet seat 2, and the heat in ash discharge seat 3 can be introduced to connecting cover 13 by heat guide pipe 16 after fan 14 is connected with power, the heat in connecting cover 13 reenters ash discharge seat 3 through bending connecting pipe 12, introduction pipe 10, spiral guide pipe 9, outlet pipe 11 and back air pipe 17, and when hot air enters the spiral guide pipe 9, the heat in the preheating and drying environment of bucket pipe 6 is transferred to the mud supply pipeline above upper connecting pipe 7 and bottom connecting pipe 5, so that the sludge can be preheated when entering rotary kiln 1 in operation, and the heat utilization efficiency of rotary kiln 1 for treating municipal sludge is improved, and the inner liner for protecting spiral guide pipe 9 can be arranged in bucket pipe 6 as necessary, the inner liner can be communicated with bottom connecting pipe 5 and upper connecting pipe 7 in the middle of spiral guide pipe 9, or the spiral guide pipe 9 is regularly cleaned for maintenance, and fan 14 can be selected according to requirements.

[0038] It should be noted that the utility model is a kind of municipal sludge treatment with drying incineration equipment, the components in the utility model are components known by those skilled in the art, and the structure and principle thereof can be known by those skilled in the art through technical manual or through conventional experimental method.

[0039] The basic principle and main features of the present application and the advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A drying incineration apparatus for municipal sludge treatment, comprising a rotary kiln (1), a sludge inlet seat (2) and an ash discharge seat (3), the sludge inlet seat (2) and the ash discharge seat (3) being installed at both ends of the rotary kiln (1), characterized in that: The heat conducting mechanism (4) comprises a bottom connecting pipe (5), a bucket pipe (6), an upper connecting pipe (7), a spiral guide pipe (9), an introduction pipe (10), an outlet pipe (11), a bend connecting pipe (12), a connecting cover (13), a fan (14), a supporting plate (15), a heat introduction pipe (16) and an air return pipe (17), the bottom connecting pipe (5) is arranged on the seat opening of the mud inlet seat (2), the upper connecting pipe (7) is welded upwards through the bucket pipe (6) above the bottom connecting pipe (5), the flange plate (8) is welded on the outer pipe opening of the bottom connecting pipe (5) and the upper connecting pipe (7) away from the bucket pipe (6), the flange plate (8) below the bottom connecting pipe (5) is flange connected outside the seat opening of the mud inlet seat (2), the spiral guide pipe (9) is fixed in the bucket pipe (6), the introduction pipe (10) and the outlet pipe (11) are respectively welded on the two end pipe bodies of the spiral guide pipe (9) extending out of the bucket pipe (6), the bend connecting pipe (12) and the air return pipe (17) are respectively welded on the introduction pipe (10) and the outlet pipe (11), the air return pipe (17) extends into the seat cavity of the ash discharge seat (3) and is welded to be communicated, the connecting cover (13) is welded to be communicated below the bend connecting pipe (12), the heat introduction pipe (16) is vertically welded to be communicated below the connecting cover (13) at the ash discharge seat (3), the supporting plate (15) for installing the fan (14) is welded on the upper pipe opening of the heat introduction pipe (16), and the connecting cover (13) is clamped into the air outlet of the fan (14).

2. The drying incineration apparatus for municipal sludge treatment according to claim 1, characterized by: The bottom cover pipe extends below the cover opening of the connecting cover (13) and is inserted into the air outlet of the fan (14).

3. The drying incineration apparatus for municipal sludge treatment according to claim 1, characterized by: The straight pipe body is integrally formed at the two end pipe openings of the spiral guide pipe (9), and the straight pipe body of the spiral guide pipe (9) extends out of the pipe body of the bucket pipe (6).

4. The drying incineration apparatus for municipal sludge treatment according to claim 1, characterized by: The mounting hole is formed in the surface of the plate body of the supporting plate (15), and the mounting hole of the supporting plate (15) and the seat plate hole of the fan (14) are locked by bolts.

5. The drying incineration apparatus for municipal sludge treatment according to claim 1, characterized by: The upper end small cover opening of the connecting cover (13) is welded at the pipe opening of the bend connecting pipe (12), and the cover cavity in the form of a bucket is arranged in the cover body of the connecting cover (13).

6. The drying incineration apparatus for municipal sludge treatment according to claim 1, characterized by: The supporting block (18) is welded at the inner wall of the pipe body of the bucket pipe (6), and the block body of the supporting block (18) is welded with the pipe body of the spiral guide pipe (9).

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