Sludge drying device

Abstract

The utility model discloses a sludge drying device. The sludge drying device comprises a drying mechanism and a waste gas removing mechanism, the waste gas removing mechanism is located at the top end of the drying mechanism, the drying mechanism comprises a cover plate and a shell, the cover plate is located at the top end of the shell, an air blower is arranged on the cover plate, one end of the air blower is connected with an air pipe, and one end of the air pipe is connected with a containing cavity; the waste gas removing mechanism comprises a cover and an outer box, the cover is located at one end of the outer box, one end of the outer box is connected with an air inlet pipe, the other end of the outer box is connected with an air outlet pipe, one end of the air inlet pipe and one end of the air outlet pipe are connected into the shell of the drying mechanism, and an electromagnetic heating piece is arranged in the outer box. Compared with an existing sludge drying device, the sludge drying device has the advantages that waste gas is treated, meanwhile, sludge can be secondarily dried through oxidized waste gas, and the drying efficiency is improved.

Description

Technical Field

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

[0002] A sludge drying device is a device used to treat sludge generated in places such as sewage treatment plants. Its main function is to remove the moisture in the sludge, thereby reducing its volume and weight, facilitating subsequent treatment and disposal.

[0003] The existing sludge drying device includes: a collection tank, a cover plate, and a box body. The top end of the collection tank is connected with a cover plate. At the position of the cover plate on the top end of the collection tank, a mounting member is fixedly connected. The mounting member is of a rectangular frame structure. The cover plate is provided with a limiting groove at the position of the mounting member, and the limiting groove is adapted to the mounting member. The inside of the collection tank is provided with a storage cavity. One inner wall of the storage cavity is provided with a scale line. One end of the collection tank is fixedly connected with a sludge inlet pipe, and the sludge inlet pipe is communicated with the inside of the storage cavity. On the upper end surface of the cover plate, a power supply and a blower are respectively fixedly installed. There are at least two groups of blowers. On the upper end surface of the cover plate, at one end close to the sludge inlet pipe, mounting grooves for installing a ventilation plate and glass are respectively opened. The lower end surface of the cover plate is fixedly connected with a box body.

[0004] When the above device is in use, the sludge is dried by the blower, but the waste gas generated during the drying of the sludge is not treated. Content of the Utility Model

[0005] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a sludge drying device which can not only dry the sludge but also treat the waste gas generated during the drying of the sludge.

[0006] To achieve the above object, the technical scheme adopted by the utility model is as follows:

[0007] The sludge drying device includes: a drying mechanism and an exhaust gas removal mechanism. The exhaust gas removal mechanism is located at the top end of the drying mechanism. The drying mechanism includes a cover plate and a housing. The cover plate is located at the top end of the housing. One end of the housing is provided with a feed pipe and a motor. The motor is connected to a screw conveyor. The cover plate is provided with a blower. One end of the blower is connected to an air duct. One end of the air duct is connected to a storage cavity. A heating element is arranged in the storage cavity. A plurality of air outlets are arranged on one side of the storage cavity facing the screw conveyor. One end of the housing is provided with a discharge port. The exhaust gas removal mechanism includes a lid and an outer box. The lid is located at one end of the outer box. One end of the outer box is connected to an intake pipe, and the other end is connected to an outlet pipe. One ends of the intake pipe and the outlet pipe are both connected to the inside of the housing of the drying mechanism. An electromagnetic heating element is arranged in the outer box. A fan is arranged on one side of the intake pipe.

[0008] Preferably, the lid and the outer box are snap-connected.

[0009] Preferably, the electromagnetic heating element is in a spiral structure.

[0010] Preferably, a conveyor belt is provided at the bottom of the discharge port.

[0011] Preferably, an anti-sticking coating is provided on the inner wall of the outer shell.

[0012] Preferably, glass is provided on the cover plate.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] (1) By subjecting the waste gas generated by the sludge to high-temperature oxidation and refluxing, compared with the existing sludge drying device, while treating the waste gas, the oxidized waste gas can be used to secondarily dry the sludge, improving the drying efficiency.

[0015] (2) Through the covering connection between the lid and the outer box of the utility model, it is convenient to replace the electromagnetic heating element in the outer box.

[0016] (3) By setting the electromagnetic heating element in a spiral structure, one end facing the inlet pipe opening and the other end facing the outlet pipe opening, the waste gas can come into contact with the electromagnetic heating element more extensively, improving the high-temperature oxidation efficiency of the waste gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural diagram of the sludge drying device provided by the utility model from the first perspective;

[0018] Figure 2 is a schematic structural diagram of the sludge drying device provided by the utility model from the second perspective;

[0019] Figure 3 is a schematic sectional structural diagram of the sludge drying device provided by the utility model;

[0020] Figure 4 is a schematic structural diagram of the storage cavity of the sludge drying device provided by the utility model;

[0021] Among them, the names corresponding to the reference numerals are: 100, drying mechanism; 101, cover plate; 102, outer shell; 103, support leg; 104, blower; 105, glass; 106, feed pipe; 107, conveyor belt; 108, screw conveyor; 109, motor; 110, discharge port; 111, storage cavity; 112, air outlet; 113, heating element; 114, air duct; 200, waste gas removal mechanism; 201, lid; 202, outer box; 203, electromagnetic heating element; 204, outlet pipe; 205, inlet pipe; 206, fan. Detailed implementation mode

[0022] The following further describes the present utility model in conjunction with the accompanying drawings and embodiments. The implementation modes of the present utility model include but are not limited to the following embodiments.

[0023] First embodiment:

[0024] As Figures 1-4 shown, the sludge drying device provided by the present utility model includes: a drying mechanism 100 and an exhaust gas removal mechanism 200. The exhaust gas removal mechanism 200 is located at the top of the drying mechanism 100. The drying mechanism 100 includes a cover plate 101 and a housing 102. The cover plate 101 is located at the top of the housing 102. One end of the housing 102 is provided with a feed pipe 106 and a motor 109. The motor 109 is connected to a screw conveyor 108. A blower 104 is provided on the cover plate 101. One end of the blower 104 is connected to an air duct 114. One end of the air duct 114 is connected to a receiving cavity 111. One end of the housing 102 is provided with a discharge port 110. The exhaust gas removal mechanism 200 includes a lid 201 and an outer box 202. The lid 201 is located at one end of the outer box 202. One end of the outer box 202 is connected to an intake pipe 205, and the other end is connected to an outlet pipe 204. When in use, first, sludge is conveyed into the housing 102 through the feed pipe 106. The motor 109 is started to rotate the screw conveyor 108. At the same time, outside air is conveyed into the receiving cavity 111 through the air duct 114 by the blower 104. A heating element 113 is provided in the receiving cavity 111. The heating element 113 heats the air in the receiving cavity 111. A plurality of air outlets 112 are provided on one side of the receiving cavity 111 facing the screw conveyor 108. The heated air dries the sludge below through the air outlets 112. Exhaust gas is generated when the sludge is dried. A fan 206 is provided on one side of the intake pipe 205. The fan 206 is started to make the exhaust gas enter the outer box 202 through the intake pipe 205. An electromagnetic heating element 203 is provided in the outer box 202. The electromagnetic heating element 203 is an electromagnetic heating tube in the prior art. The electromagnetic heating element 203 conducts electricity to form a high-temperature environment in the entire outer box 202. The exhaust gas is thermally oxidized when flowing into the outer box 202, so that harmful substances in the exhaust gas are oxidized into harmless substances. The other end of the outer box 202 is connected to the outlet pipe 204. The thermally oxidized gas is a hot air stream. One ends of the intake pipe 205 and the outlet pipe 204 are both connected inside the housing 102 of the drying mechanism 100. The hot air stream is recycled into the housing 102 through the outlet pipe 206 to perform secondary drying on the sludge in the housing 102.

[0025] By thermally oxidizing and recycling the exhaust gas generated by the sludge, compared with the existing sludge drying device, the present utility model can not only treat the exhaust gas but also perform secondary drying on the sludge through the oxidized exhaust gas, improving the drying efficiency.

[0026] Second embodiment:

[0027] As shown Figure 3 in FIG. 1, the lid 201 and the outer box 202 are snap-connected.

[0028] Through the snap connection between the lid 201 and the outer box 202, it is convenient to replace the electromagnetic heating element 203 in the outer box 202.

[0029] Third Embodiment:

[0030] As shown Figure 3 in FIG. 2, the electromagnetic heating element 203 is in a spiral structure.

[0031] By setting the electromagnetic heating element 203 in a spiral structure, one end facing the inlet pipe 205 and the other end facing the outlet pipe 204, the waste gas contacts the electromagnetic heating element 203 more widely, improving the high-temperature oxidation efficiency of the waste gas.

[0032] Fourth Embodiment:

[0033] As shown Figure 2 in FIG. 3, a conveyor belt 107 is provided at the bottom of the discharge port 110. The conveyor belt 107 is a conveyor belt in the prior art. The dried sludge falls on the conveyor belt 107 through the discharge port 110 under the push of the screw conveyor 108, which is convenient for the next-step collection and treatment.

[0034] Fifth Embodiment:

[0035] As shown Figure 1 in FIG. 4, a glass 105 is provided on the cover plate 101, which is convenient for observing the drying condition of the sludge in the housing 102.

[0036] In use, sludge is conveyed into the housing 102 through the feed pipe 106. The motor 109 is started to rotate the screw conveyor 108. At the same time, outside air is conveyed into the storage chamber 111 through the air pipe 114 by the blower 104. A heating element 113 is provided in the storage chamber 111. The heating element 113 heats the air in the storage chamber 111. A number of air outlets 112 are provided on one side of the storage chamber 111 facing the screw conveyor 108. The heated air dries the sludge below through the air outlets 112. Waste gas is generated when the sludge is dried. A fan 206 is provided on one side of the intake pipe 205. The fan 206 is started to make the waste gas enter the outer box 202 through the intake pipe 205. An electromagnetic heating element 203 is provided in the outer box 202. The electromagnetic heating element 203 is an electromagnetic heating pipe in the prior art. The electromagnetic heating element 203 forms a high-temperature environment in the entire outer box 202 through conduction. The waste gas is thermally oxidized when flowing into the outer box 202, so that harmful substances in the waste gas are oxidized into harmless substances. The other end of the outer box 202 is connected to the outlet pipe 204. The gas after high-temperature oxidation is a hot air stream. One end of the intake pipe 205 and the outlet pipe 204 are both connected inside the housing 102 of the drying mechanism 100. The hot air stream returns to the housing 102 through the outlet pipe 204 to perform secondary drying on the sludge in the housing 102.

[0037] The above embodiments are only one of the preferred embodiments of the present invention and should not be used to limit the protection scope of the present invention. Any meaningless changes or polishings made on the main design concept and spirit of the present invention, as long as the technical problems solved are still the same as those of the present invention, should be included in the protection scope of the present invention.

Claims

1. A sludge drying device, characterized in that: include: A drying mechanism (100) and an exhaust gas removal mechanism (200), wherein the exhaust gas removal mechanism (200) is located at the top of the drying mechanism (100), and the drying mechanism (100) comprises a cover plate (101) and a shell (102), wherein the cover plate (101) is located at the top of the shell (102), and a blower (104) is provided on the cover plate (101), wherein one end of the blower (104) is connected to an air duct (114), and one end of the air duct (114) is connected to a storage chamber (111), wherein a heating element (113) is provided in the storage chamber (111), and wherein a heating element (113) is provided on one side of the storage chamber (111) facing the screw conveyor (108). There are a plurality of air outlets (112), one end of the outer shell (102) is provided with an outlet (110), the exhaust gas removal mechanism (200) comprises a cover (201) and an outer box (202), the cover (201) is located at one end of the outer box (202), one end of the outer box (202) is connected to an air inlet pipe (205), and the other end is connected to an air outlet pipe (204), one end of the air inlet pipe (205) and one end of the air outlet pipe (204) are both connected to the inside of the outer shell (102) of the drying mechanism (100), an electromagnetic heating element (203) is provided in the outer box (202), and a fan (206) is provided on one side of the air inlet pipe (205).

2. A sludge drying device according to claim 1, characterized in that: The cover (201) and the outer box (202) are connected by snap-fitting.

3. A sludge drying device according to claim 2, characterized in that: The electromagnetic heating element (203) is a spiral structure.

4. A sludge drying device according to claim 1, characterized in that: A conveyor belt (107) is provided at the bottom end of the discharge port (110).

5. The sludge drying device according to claim 1, characterized in that: The inner wall of the housing (102) is provided with an anti-stick coating.

6. A sludge drying device according to claim 1, characterized in that: Glass (105) is provided on the cover plate (101).

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