Movable activated carbon skid-mounted regeneration device

Abstract

The utility model discloses a movable activated carbon skid-mounted regeneration device which comprises a feeding device, a microwave pyrolysis device, a condensing device and a discharging cooling device which are mounted on a movable chassis, a screen is arranged on the cross section of a feeding hopper of the feeding equipment, and a vibrating device is arranged on the side wall of the feeding hopper; a feeding hole of the microwave pyrolysis device is connected with the feeding equipment, a waste gas outlet is connected with the condensing device, and an outlet of the condensing device is connected with the tail gas treatment device; and a discharge hole of the microwave pyrolysis equipment is connected with the discharge cooling equipment.

Description

Technical Field

[0001] The utility model belongs to the technical field of activated carbon regeneration, and in particular relates to a movable activated carbon skid-mounted regeneration device. Background Art

[0002] The statements herein merely provide background art related to the present invention and do not necessarily constitute prior art.

[0003] As an effective adsorbent, activated carbon has good physical and chemical properties and low price. It is widely used in environmental protection, food, medicine, chemical industry, energy and other fields, but it also produces a large amount of saturated activated carbon. If these waste activated carbons are not properly handled, they will cause secondary pollution. At present, more and more people are turning to activated carbon regeneration technology for regeneration instead of the previous uneconomical and environmentally unfriendly treatment methods such as landfill or incineration.

[0004] The main activated carbon regeneration methods include thermal regeneration, chemical agent regeneration, biological regeneration, electrochemical regeneration, etc. Among these methods, the equipment actually used in industrial applications mainly includes rotary kiln thermal regeneration equipment and microwave pyrolysis regeneration equipment. These equipments basically adopt the method of establishing a fixed "activated carbon regeneration treatment center" to collect and treat the waste activated carbon generated by enterprises in a certain park, county or larger area. However, since waste activated carbon is a solid waste, complex management procedures must be strictly followed during its storage, transportation, utilization, and disposal.

[0005] In addition, due to the different use environments of activated carbon, different impurities are carried in the activated carbon during recycling. For example, some recycled activated carbon contains a large amount of quartz sand, while others contain some weeds, branches and other impurities. The presence of impurities will affect the recycling of activated carbon and have an adverse effect on the quality of the regenerated activated carbon. Utility Model Content

[0006] In view of the shortcomings of the prior art, the purpose of the utility model is to provide a movable activated carbon skid-mounted regeneration device. The utility model can solve the problems of cumbersome transportation management procedures, mixed materials in centralized disposal, and inconvenience in secondary sales during the activated carbon regeneration process.

[0007] In order to achieve the above purpose, the utility model is implemented through the following technical solutions:

[0008] A movable activated carbon skid-mounted regeneration device, comprising a feeding device, a microwave pyrolysis device, a condensing device and a discharging cooling device, each device being installed on a movable chassis;

[0009] The feed hopper of the feeding device is provided with a screen on its cross section, and a vibrating device is provided on the side wall of the feed hopper;

[0010] The feed inlet of the microwave pyrolysis device is connected to the feed equipment, the exhaust gas outlet is connected to the condensation device, and the outlet of the condensation device is connected to the tail gas treatment device;

[0011] The discharge port of the microwave pyrolysis device is connected to the discharge cooling device.

[0012] The various devices are assembled and fixed to the chassis of the mobile device by bolts.

[0013] A screen is set on the horizontal surface of the feed hopper, and a through hole is set on the screen. The diameter of the through hole is larger than the particle size of the activated carbon to be regenerated, and a vibration device is set on the side wall of the feed hopper. The particle size of the activated carbon used as an adsorbent is relatively small, generally 0.4-0.8mm. When feeding, the activated carbon to be regenerated is added to the feed hopper. The activated carbon can smoothly fall through the screen under the vibration of the vibration device, while other solid particles with larger particle sizes or impurities such as weeds and branches are easily intercepted by the screen. Therefore, by setting the screen, impurities in the activated carbon can be effectively removed, and the quality of the regenerated activated carbon is better guaranteed.

[0014] The vibration device can also effectively prevent the screen from being blocked by particulate matter.

[0015] In some embodiments, the screen is detachably mounted in the feed hopper.

[0016] In some embodiments, the condensing device includes a condenser and a liquid storage tank. The condenser is installed above the liquid storage tank and communicated with the interior of the liquid storage tank. The condenser is connected to the exhaust gas outlet of the microwave pyrolysis equipment.

[0017] Preferably, the condenser is a tube-in-tube condenser, and the condenser is connected to the liquid storage tank below by bolts.

[0018] The activated carbon regeneration waste gas contains a large amount of steam, and the temperature of the waste gas is relatively high. If the subsequent waste gas treatment is carried out directly, on the one hand, it is not conducive to the recovery and utilization of this part of the heat, resulting in heat waste; on the other hand, it is not conducive to the treatment of the regenerated waste gas.

[0019] After the exhaust gas is condensed and cooled by a condenser, the steam is condensed and recovered, and then the exhaust gas is treated, which can improve the exhaust gas treatment efficiency. Setting up a liquid storage tank to recycle the condensed water can avoid water waste and prevent the direct discharge of water from polluting the surrounding environment.

[0020] In some embodiments, the tail gas treatment device adopts an RCO catalytic combustion furnace structure, which is divided into an oxidation chamber and a heat storage chamber that are interconnected, and the oxidation chamber is connected to a condensation device.

[0021] The oxidation chamber is used for heating and oxidative decomposition of the exhaust gas, and the heat storage chamber is equipped with heat storage ceramics as a heat exchange medium.

[0022] In some embodiments, the feeding device further comprises a material pushing device, the feeding hopper is arranged at the inlet of the material pushing device, the outlet of the material pushing device is connected to the inlet of the microwave pyrolysis device, and a valve is arranged at the inlet of the microwave pyrolysis device.

[0023] The valve plays a sealing role to ensure a slightly negative pressure state in the reactor of the microwave pyrolysis equipment.

[0024] Preferably, the material advancing device is a screw conveyor, comprising a material conveying pipe, an auger conveyor and a material conveying motor, wherein the auger conveyor is located inside the material conveying pipe, the material conveying motor is located outside the material conveying pipe, and the material conveying motor is connected to the auger conveyor.

[0025] In some embodiments, a nitrogen source is further included, which is connected to the interior of the microwave pyrolysis device and is used to introduce nitrogen into the interior of the microwave pyrolysis device to regenerate the activated carbon in an inert atmosphere.

[0026] In some embodiments, the discharge cooling device includes a discharge shell and an auger, the auger is arranged inside the discharge shell, and a water cooling jacket is arranged on the discharge shell, and the water cooling jacket is connected to a cold water source.

[0027] The beneficial effects achieved by one or more embodiments of the utility model described above are as follows:

[0028] The movable skid-mounted regeneration device is easy to move as a whole, and can solve the problem of activated carbon regeneration in enterprises that produce waste activated carbon point-to-point, reduce the complicated procedures for solid waste transportation, and is not restricted by location.

[0029] By setting a screen in the feed hopper, large-sized impurities can be effectively intercepted, which is beneficial to improving the efficiency and quality of activated carbon regeneration. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0031] Figure 1 This is a schematic diagram of the structure of the movable activated carbon skid-mounted regeneration device of the utility model;

[0032] Figure 2 This is a disposal flow chart of the movable activated carbon skid-mounted regeneration device of the utility model;

[0033] Figure 3 This is a structural diagram of the feed hopper of the utility model.

[0034] In the figure: 1, feeding equipment; 1-1 feeding hopper; 1-2, material pushing equipment; 1-3, stop valve; 1-11, screen; 1-12, vibration device;

[0035] 2. Microwave pyrolysis equipment; 2-1. Pressure sensor; 2-2. Temperature sensor; 2-3. Pyrolysis equipment body;

[0036] 3. Electric control box; 3-1. Display screen; 3-2. Control cable;

[0037] 4. Movable chassis; 5. Nitrogen equipment; 6. Cold water equipment;

[0038] 7. Discharge cooling equipment; 7-1. Motor; 7-2. Discharge housing; 7-3. Auger; 7-4. Water cooling jacket;

[0039] 8. Condensation device; 8-1. Condenser; 8-2. Liquid storage tank;

[0040] 9. First fan; 10. Exhaust gas treatment device; 11. Second fan. DETAILED DESCRIPTION

[0041] It should be noted that the following detailed descriptions are all illustrative and are intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used in the present invention have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs.

[0042] The utility model is further described below in conjunction with the embodiments.

[0043] like Figure 1 As shown, a movable activated carbon skid-mounted regeneration device includes a feeding device 1, a microwave pyrolysis device 2, a pressure sensor 2-1, a temperature sensor 2-2, a pyrolysis device body 2-3, an electric control box 3, a display screen 3-1, a control cable 3-2, a movable chassis 4, a nitrogen device 5, a cold water source 6, a discharge cooling device 7, a motor 7-1, a discharge shell 7-2, a screw 7-3, a water cooling jacket 7-4, a condensing device 8, a condenser 8-1, a liquid storage tank 8-2, a first fan 9, an exhaust gas treatment device 10 and a second fan 11. The nitrogen device is a nitrogen generator.

[0044] The feeding device 1 is connected to the feeding port of the microwave pyrolysis device 2, and the material is quantitatively transported to the microwave pyrolysis device 2 through the feeding device 1. The feeding device 1 includes a feeding hopper 1-1, a stop valve 1-3 and a material pushing device 1-2, which quantitatively transports the material to the microwave pyrolysis device 2.

[0045] The material propulsion device 1-2 is a screw conveyor, including a material conveying pipe, an auger conveyor and a material conveying motor. The auger conveyor is located inside the material conveying pipe, and the material conveying motor is located outside the material conveying pipe. The material conveying motor is connected to the auger conveyor.

[0046] The discharging cooling device 7 comprises a motor 7-1, a discharging shell 7-2, an auger 7-3 and a water-cooling jacket 7-4. The regenerated material is driven by the motor 7-1 to drive the auger 7-3 to slowly move the material in the discharging shell 7-2, and the material is cooled to below 60°C under the action of the water-cooling jacket 7-4. The condensing device comprises a condenser 8-1 and a liquid storage tank 8-2. The pyrolysis waste gas containing organic matter generated by the microwave pyrolysis equipment 2 is condensed by the condenser 8-1 under the action of the first fan 9 to produce condensate, which is stored in the liquid storage tank 8-2 and discharged regularly. The condensed pyrolysis gas is guided to the tail gas treatment device 10 under the action of the second fan 11 for treatment and then meets the discharge standards.

[0047] Specifically, the feed hopper 1-1 is provided with a filter screen 1-11 and a vibration device 1-12, which can filter out impurities in the material and prevent the material from accumulating in the hopper.

[0048] Specifically, the activated carbon microwave pyrolysis equipment 2 realizes the activated carbon regeneration temperature of 200° C. to 1000° C. through the electric control box 3 and is variable frequency adjustable.

[0049] Specifically, the movable chassis 4 is fixed with a feeding device 1, a microwave pyrolysis device 2, an electric control box 3, a nitrogen device 5, a cold water device 6, a discharge cooling device 7, a condensing device 8, a first fan 9, an exhaust gas treatment device 10 and a second fan 11.

[0050] The overall dimensions of the microwave pyrolysis equipment are less than 10m in length, less than 2.5m in height, and less than 2m in width.

[0051] Specifically, the application process of a mobile activated carbon skid-mounted regeneration device is as follows: the waste activated carbon to be processed is filtered through the filter screen 1-11 of the feed hopper 1 to filter impurities, and the material is transported to the microwave pyrolysis device 2 through the timed vibration of the vibration device 1-12. The electric control box 3 sets the regeneration temperature of the microwave pyrolysis device 2 to 200-1000°C through the control cable 3-2, and the control information is fed back to the display screen 3-1 in real time according to the online monitoring of the pressure sensor 2-1 and the temperature sensor 2-2. During the continuous pyrolysis of activated carbon, the nitrogen introduced into the nitrogen device 5 ensures the oxygen-free state in the microwave pyrolysis device 2. The cooling water of the cold water device 6 is introduced into the microwave pyrolysis device 2 through the cooling pipe, and the magnetron in the microwave pyrolysis device 2 is cooled by heat exchange. The cooling pipe can be arranged around the magnetron in the form of a coil structure to cool the magnetron. The water temperature of the cold water device is maintained at 28-32°C, and the water flow rate is determined according to the microwave pyrolysis device. The material of the condensing device is 304 stainless steel or above. The fan is a high temperature resistant variable frequency fan.

[0052] The electric control box is an explosion-proof structure electric control box, which is an existing structure. A display screen is installed on the electric control box, which can intuitively display the temperature, processing time, and fault information of the pyrolysis equipment.

[0053] The purity of nitrogen output by the nitrogen equipment is greater than 99%, and the amount of nitrogen is adjusted according to the gas pressure in the microwave pyrolysis equipment.

[0054] The qualified activated carbon regenerated from the microwave pyrolysis device 2 is cooled to below 60°C by the discharge cooling device 7 for output and packaging and storage. The high-temperature tail gas generated by the microwave pyrolysis device 2 is led out by the first fan 9 to the condensation device 8. The condensation device 8 condenses part of the organic matter and water vapor, and then passes the tail gas into the tail gas treatment device 10 for treatment and then is discharged by the second fan 11 in compliance with the standards. The activated carbon regeneration device is powered by a cable. In this way, it can be moved to different places where waste activated carbon is generated under the traction of the movable chassis 4 for on-site treatment operations.

[0055] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A movable activated carbon skid-mounted regeneration device, characterized in that: It includes feeding equipment, microwave pyrolysis equipment, condensing device and discharging cooling equipment, and each equipment is installed on a movable chassis; The feed hopper of the feeding device is provided with a screen on its cross section, and a vibrating device is provided on the side wall of the feed hopper; The feed inlet of the microwave pyrolysis device is connected to the feed equipment, the exhaust gas outlet is connected to the condensation device, and the outlet of the condensation device is connected to the tail gas treatment device; The discharge port of the microwave pyrolysis device is connected to the discharge cooling device.

2. The movable activated carbon skid-mounted regeneration device according to claim 1 is characterized in that: The screen is detachably installed in the feed hopper.

3. The movable activated carbon skid-mounted regeneration device according to claim 1 is characterized in that: The condensing device comprises a condenser and a liquid storage tank. The condenser is installed above the liquid storage tank and communicated with the inside of the liquid storage tank. The condenser is connected to the exhaust gas outlet of the microwave pyrolysis equipment.

4. The movable activated carbon skid-mounted regeneration device according to claim 3 is characterized in that: The condenser adopts a tube-in-tube condenser, which is connected to the liquid storage tank below by bolts.

5. The movable activated carbon skid-mounted regeneration device according to claim 1 is characterized in that: The feeding device also includes a material pushing device, the feeding hopper is arranged at the inlet of the material pushing device, and the outlet of the material pushing device is connected to the inlet of the microwave pyrolysis device.

6. The movable activated carbon skid-mounted regeneration device according to claim 5 is characterized in that: A valve is provided at the inlet of the microwave pyrolysis equipment.

7. The movable activated carbon skid-mounted regeneration device according to claim 5 is characterized in that: The material propulsion equipment is a screw conveyor, which includes a material conveying pipe, an auger conveyor and a material conveying motor. The auger conveyor is located inside the material conveying pipe, the material conveying motor is located outside the material conveying pipe, and the material conveying motor is connected to the auger conveyor.

8. The movable activated carbon skid-mounted regeneration device according to claim 1 is characterized in that: The device also includes a nitrogen source, which is connected to the interior of the microwave pyrolysis device.

9. The movable activated carbon skid-mounted regeneration device according to claim 1 is characterized in that: The discharging cooling device comprises a discharging shell and an auger, wherein the auger is arranged inside the discharging shell, and a water cooling jacket is arranged on the discharging shell, and the water cooling jacket is connected to a cold water source.

10. The movable activated carbon skid-mounted regeneration device according to claim 1 is characterized in that: The tail gas treatment device adopts an RCO catalytic combustion furnace structure, which is divided into an oxidation chamber and a heat storage chamber which are interconnected, and the oxidation chamber is connected to a condensing device.

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