Resourceful treatment system for sludge and oil sludge

Abstract

The utility model discloses a sludge and oil sludge resourceful treatment system which comprises a pretreatment device and a high-temperature and high-pressure carbonization device, and the pretreatment device comprises a low-temperature drying machine; the high-temperature and high-pressure carbonization device comprises a motor, one end of the motor is provided with a speed reducer, the other end of the motor is provided with a conveying pipeline, the outer wall of the conveying pipeline is provided with an electromagnetic heating device, the inner wall of the conveying pipeline is provided with spiral blades, one side of the conveying pipeline is provided with an air inlet and a feeding port, and the other side of the conveying pipeline is provided with a discharging port and an exhaust hole. A temperature control probe and an oxygen measuring probe are arranged in the conveying pipeline; the discharge hole is connected with a cooling device. The device is ingenious in design, does not generate tail gas, is environment-friendly and safe, can turn waste into wealth, and generates certain economic value.

Description

Technical Field

[0001] The utility model relates to the field of solid waste treatment, in particular to the field of sludge and oily sludge resource treatment systems. Background Art

[0002] The waste materials generated in industrial production, especially industrial sludge, pose a great threat and damage to the human living environment. Therefore, the research and development of industrial sludge harmless treatment equipment have become a major topic in the current mechanical field.

[0003] In recent years, through the unremitting efforts of technical R & D personnel, a series of sludge and oily sludge treatment equipment have emerged one after another. However, the technical means for treating sludge and oily sludge mainly focus on drying and dewatering the sludge, or adding chemical reagents for treatment. These technical means cannot fundamentally achieve harmless terminal treatment of sludge and oily sludge.

[0004] The Chinese invention patent with the application number 201510426765.6 proposes a pipe-chain continuous sludge and oily sludge carbonization system, which dehydrates, dewaxes, and degums the materials under negative pressure first, and then pyrolyzes them under anaerobic conditions. At the same time, the waste heat of the hot air in the carbonization system is used as the heat source of the pretreatment system. However, it will generate tail gas, has more pre-treatment steps, and is not suitable for some industrial sludge such as electroplating sludge. Therefore, we need to provide a more environmentally friendly treatment method. Summary of the Utility Model

[0005] The purpose of the utility model is to overcome the deficiencies existing in the prior art and provide a sludge and oily sludge resource treatment system. It has the advantages of no tail gas, safety and environmental protection.

[0006] The technical solution adopted by the utility model to solve the above problems is: a sludge and oily sludge resource treatment system, including a pretreatment device and a high-temperature and high-pressure carbonization device. The pretreatment device includes a low-temperature dryer; the high-temperature and high-pressure carbonization device includes a motor. One end of the motor is provided with a speed reducer, and the other end of the motor is provided with a conveying pipeline. An electromagnetic heating device is arranged on the outer wall of the conveying pipeline, a spiral blade is arranged on the inner wall of the conveying pipeline, an air inlet hole and a feeding port are respectively arranged on one side of the conveying pipeline, a discharging port and an exhaust hole are arranged on the other side of the conveying pipeline, and a temperature control probe and an oxygen detection probe are arranged in the conveying pipeline; the discharging port is connected to a cooling device.

[0007] In the above-mentioned sludge and oily sludge resource treatment system, a feeding hopper is arranged on the feeding port, and a first airtight device is arranged between the feeding hopper and the feeding port; a second airtight device is arranged between the discharging port and the cooling device.

[0008] In the aforementioned sludge and oily sludge resource treatment system, the first airtight feeder includes a feed box. A first feed channel is provided on the upper left side of the feed box, and a second feed channel is provided on the lower right side of the feed box. A fan blade group is provided between the first feed channel and the second feed channel. The fan blade group includes a rotating fan blade shaft provided in the middle of the feed box. Blades are evenly provided on the rotating fan blade shaft, and the blades are in contact with the inner wall of the feed box.

[0009] In the aforementioned sludge and oily sludge resource treatment system, the second airtight feeder includes a discharge box. A first discharge channel is provided on the upper left side of the discharge box, and a second discharge channel is provided on the lower right side of the discharge box. A second fan blade group is provided between the first discharge channel and the second discharge channel. The second fan blade group includes a second rotating fan blade shaft provided in the middle of the discharge box. Second blades are evenly provided on the second rotating fan blade shaft, and the second blades are in contact with the inner wall of the discharge box.

[0010] In the aforementioned sludge and oily sludge resource treatment system, the first feed channel, the second feed channel, the first discharge channel, and the second discharge channel are all conical channels.

[0011] In the aforementioned sludge and oily sludge resource treatment system, the channel lengths of the first discharge channel and the second discharge channel are longer than those of the first feed channel and the second feed channel. The longer discharge channel is helpful for cooling the material.

[0012] In the aforementioned sludge and oily sludge resource treatment system, if the object to be treated is industrial electroplating sludge, oxygen is connected to the air inlet hole.

[0013] In the aforementioned sludge and oily sludge resource treatment system, if the object to be treated is petrochemical oily sludge, nitrogen is connected to the air inlet hole.

[0014] In the aforementioned sludge and oily sludge resource treatment system, an opening and closing control valve is installed on the exhaust hole, which is convenient for controlling the opening and closing of the exhaust hole.

[0015] Compared with the prior art, the utility model passes the oily sludge after low-temperature drying treatment through a high-temperature and high-pressure carbonization device, and introduces industrial gases such as oxygen or nitrogen into the air inlet hole, so that the sludge and oily sludge react in the conveying pipeline. After cooling, oxides or carbon black are obtained. The oxides or carbon black can be sold as commodities and have certain economic value.

[0016] Furthermore, an electromagnetic heating device is provided on the outer wall of the conveying pipeline, and spiral blades are provided on the inner wall of the conveying pipeline, so that the reaction in the conveying pipeline can be more complete. Oxides or carbon black are generated after the reaction, and no tail gas is emitted, which is environmentally friendly and safe.

[0017] Furthermore, the first airtight feeder and the second airtight feeder are provided. The structure is simple, the airtight effect is good, no gas will be mixed in, and the discharging and cooling are integrated.

[0018] In summary, the utility model does not generate tail gas, is environmentally friendly and safe, and can turn waste into treasure, generating a certain economic value. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic structural diagram of the high-temperature and high-pressure carbonization device of the utility model;

[0020] Figure 2 is a schematic structural diagram of the first airtight feeder of the utility model;

[0021] Figure 3 is a schematic structural diagram of the second airtight feeder of the utility model;

[0022] The reference signs in the drawings are: 1, motor; 2, speed reducer; 3, air inlet hole; 4, feed inlet; 5, first airtight feeder; 51, feed box; 511, first feed channel; 51, second feed channel; 52, fan blade group; 521, rotating fan blade shaft; 522, first blade group; 6, conveying pipeline; 7, spiral blade; 8, exhaust hole; 9, second airtight feeder; 91, discharge box; 911, first discharge channel; 912, second discharge channel; 92, second fan blade group; 921, second rotating fan blade shaft; 922, second blade group; 10, discharge outlet. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] The technical solutions of the present invention will be further specifically described below through embodiments and in conjunction with the drawings.

[0024] Embodiment 1

[0025] A sludge and oily sludge resource treatment system includes a pretreatment device and a high-temperature and high-pressure carbonization device. The pretreatment device includes a low-temperature dryer, such as a sludge low-temperature drying device with a patent number of 201820248590.3 previously applied by the applicant; as Figure 1 shown, the high-temperature and high-pressure carbonization device includes a motor 1. One end of the motor 1 is provided with a speed reducer 2, and the other end of the motor 1 is provided with a conveying pipeline 6. An electromagnetic heating device is provided on the outer wall of the conveying pipeline 6, a spiral blade 7 is provided on the inner wall of the conveying pipeline 6, an air inlet hole 3 and a feed inlet 4 are respectively provided on one side of the conveying pipeline 6, a discharge outlet 10 and an exhaust hole 8 are provided on the other side of the conveying pipeline 6, and a temperature control probe and an oxygen measurement probe are provided in the conveying pipeline 6; the discharge outlet 10 is connected to a cooling device, and the cooling device is a spray type condensation device, etc.

[0026] A feed hopper is provided on the feed inlet 4, and a first airtight feeder 5 is provided between the feed hopper and the feed inlet 4; a second airtight feeder 9 is provided between the discharge outlet 10 and the cooling device.

[0027] As Figure 2As shown in the figure, the first airtight feeder 5 includes a feed box 51. A first feed channel 511 is provided on the upper left side of the feed box 51, and a second feed channel 512 is provided on the lower right side of the feed box 51. A fan blade group 52 is provided between the first feed channel 511 and the second feed channel 512. The fan blade group 52 includes a rotating fan blade shaft 521 provided in the middle of the feed box 51. A first blade group 522 with evenly distributed blades is provided on the rotating fan blade shaft 521, and the blades of the first blade group 522 are in contact with the inner wall of the feed box 51.

[0028] As Figure 3 As shown in the figure, the second airtight feeder 9 includes a discharge box 91. A first discharge channel 911 is provided on the upper left side of the discharge box 91, and a second discharge channel 912 is provided on the lower right side of the discharge box 91. A second fan blade group 92 is provided between the first discharge channel 911 and the second discharge channel 912. The second fan blade group 92 includes a second rotating fan blade shaft 921 provided in the middle of the discharge box 91. A second blade group 922 with evenly distributed blades is provided on the second rotating fan blade shaft 921, and the blades of the second blade group 922 are in contact with the inner wall of the discharge box 91.

[0029] The first feed channel 511, the second feed channel 512, the first discharge channel 911 and the second discharge channel 912 are all conical channels, which are convenient for the material to enter and exit and will not get stuck in the middle.

[0030] The channel lengths of the first discharge channel 911 and the second discharge channel 912 are longer than those of the first feed channel 511 and the second feed channel 512.

[0031] Nitrogen is connected to the air inlet hole 3, and the material to be processed is petrochemical sludge.

[0032] The steps are as follows: First, introduce nitrogen into the air inlet hole 3, and discharge the air in the conveying pipeline 6 from the exhaust hole 8 until the oxygen content detected by the oxygen detection probe in the conveying pipeline 6 is 0. Then close the exhaust hole 8 and the air inlet hole 3 in sequence, start the electromagnetic heating device, heat the wall of the conveying pipeline 6 to 600 - 900 °C, apply a pressure of -50 Pa, start the carbonization device, rotate the spiral blade 7, and then load the pre-treated petrochemical sludge at the feed port 4. The petrochemical sludge passes through the feed hopper of the first feed port 4, then through the first feed channel 51 to the rotating fan blade group 52 in the feed box 51, and then through the second feed channel 512 to the conveying pipeline 6. Driven by the spiral blade 7 in the conveying pipeline 6, the petrochemical sludge slowly moves while reacting to the discharge port 10. The material at the discharge port 10 passes through the first discharge channel 91 to the second fan blade group 92 in the discharge box 91, and then through the second discharge channel 912 to the cooling device. After cooling, the product carbon black is obtained, and the carbon black can be used as a rubber filler agent, etc.

[0033] Example 2

[0034] Differing from Example 1, oxygen is connected in the air inlet hole 3, and the material to be treated is electroplating sludge.

[0035] The steps are as follows: First, introduce some oxygen into the air inlet hole 3 until the oxygen content detected by the oxygen probe in the conveying pipeline 6 reaches 60%. Start the electromagnetic heating device and heat the wall of the conveying pipeline 6 to 600 - 900 °C, and pressurize it to -50 Pa. Start the carbonization device, and the spiral blade 7 rotates. Then, load the pretreated electroplating sludge at the feed inlet 4. The electroplating sludge passes through the feed hopper of the first feed inlet 4, then through the first feed channel 51 to the rotating fan blade group 52 in the feed box 51, then through the second feed channel 512 to the conveying pipeline 6, and is driven by the spiral blade 7 in the conveying pipeline 6 to slowly move while reacting to the discharge port 10. The material at the discharge port 10 passes through the first discharge channel 91 to the second fan blade group 92 in the discharge box 91, and then through the second discharge channel 912 to the cooling device. After cooling, product oxides such as chromium oxide and copper oxide are obtained.

Claims

1. A sludge and oily sludge resource treatment system, characterized in that: It includes a pretreatment device and a high-temperature and high-pressure carbonization device. The pretreatment device includes a low-temperature dryer; the high-temperature and high-pressure carbonization device includes a motor (1), a speed reducer (2) is provided at one end of the motor (1), a conveying pipeline (6) is provided at the other end of the motor (1), an electromagnetic heating device is provided on the outer wall of the conveying pipeline (6), a spiral blade (7) is provided on the inner wall of the conveying pipeline (6), an air inlet hole (3) and a feeding port (4) are respectively provided on one side of the conveying pipeline (6), a discharge port (10) and an exhaust hole (8) are provided on the other side of the conveying pipeline (6), a temperature control probe and an oxygen detection probe are provided in the conveying pipeline (6); the discharge port (10) is connected to a cooling device.

2. The sludge and oily sludge resource treatment system according to claim 1, wherein: A feeding hopper is provided on the feeding port (4), and a first airtight feeder (5) is provided between the feeding hopper and the feeding port (4); a second airtight feeder (9) is provided between the discharge port (10) and the cooling device.

3. The sludge and oily sludge resource treatment system according to claim 2, wherein: The first airtight feeder (5) includes a feeding box (51), a first feeding channel (511) is provided on the upper left side of the feeding box (51), a second feeding channel (512) is provided on the lower right side of the feeding box (51), a fan blade group (52) is provided between the first feeding channel (511) and the second feeding channel (512), the fan blade group (52) includes a rotating fan blade shaft (521) provided in the middle of the feeding box (51), a first blade group (522) with evenly distributed blades is provided on the rotating fan blade shaft (521), and the blades of the first blade group (522) are attached to the inner wall of the feeding box (51).

4. A sludge and oily sludge resource treatment system according to claim 3, characterized in that: The second airtight feeder (9) includes a discharge box (91), a first discharge channel (911) is provided on the upper left side of the discharge box (91), a second discharge channel (912) is provided on the lower right side of the discharge box (91), a second fan blade group (92) is provided between the first discharge channel (911) and the second discharge channel (912), the second fan blade group (92) includes a second rotating fan blade shaft (921) provided in the middle of the discharge box (91), a second blade group (922) with evenly distributed blades is provided on the second rotating fan blade shaft (921), and the blades of the second blade group (922) are attached to the inner wall of the discharge box (91).

5. A sludge and oily sludge resource treatment system according to claim 4, characterized in that: The first feeding channel (511), the second feeding channel (512), the first discharge channel (911) and the second discharge channel (912) are all conical channels.

6. The sludge and oily sludge resource treatment system according to claim 5, characterized in that: The channel length of the first discharge channel (911) and the second discharge channel (912) is longer than that of the first feeding channel (511) and the second feeding channel (512).

7. A sludge and oily sludge resource treatment system according to claim 1, characterized in that: Industrial gas is connected to the air inlet hole (3).

8. A sludge and oily sludge resource treatment system according to claim 7, characterized in that: The industrial gas is oxygen.

9. The sludge and oily sludge resource treatment system according to claim 7, characterized in that: The industrial gas is nitrogen.

10. A sludge and oily sludge resource treatment system according to claim 1, characterized in that: An opening and closing control valve is installed on the exhaust hole (8).

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