CN115463938A

CN115463938A - Complete equipment for high-temperature oxygen-free pyrolysis of oily hazardous wastes

Info

Publication number: CN115463938A
Application number: CN202211216174.2A
Authority: CN
Inventors: 豆远奎; 鲁巨生; 潘全; 甘英姿; 陈孝红; 田永炎
Original assignee: Chongqing Fason Purification Equipment Co ltd
Current assignee: Chongqing Fason Purification Equipment Co ltd
Priority date: 2022-10-01
Filing date: 2022-10-01
Publication date: 2022-12-13

Abstract

The invention relates to a complete set of high-temperature anaerobic pyrolysis device for oily hazardous waste, which relates to a hazardous waste treatment device, and consists of an anaerobic pyrolysis system, a waste oil rectification system and a waste gas treatment system, wherein the anaerobic pyrolysis system consists of a frame, a feeding hopper, a feeding auxiliary device, an anaerobic pyrolysis device, a fire insulation tank, a buffer tank, a water pump, a vacuum tank, a receiving tank, a dry slag discharging auger, a dry slag outlet, a slag discharge tank, a gas-dust separator, a condenser and an oil-water separator; the waste oil rectification system consists of a reaction kettle, an adsorption tower, a catalytic tower and a fractionating tower; the waste gas treatment system consists of a combustion furnace, a primary dust remover, a circulating water pump, a secondary dust remover and a chimney. The device oily hazardous waste electromagnetic heating is fast, and dry sediment oiliness liquid is less than 3 permillage, accords with the national emission requirement completely, and waste oil recovery is high, and the energy consumption is low during the processing, and the processing speed is fast, and the treatment cost is low, and the treatment effect is good, has apparent technological economic benefits, has spreading value.

Description

Complete equipment for high-temperature oxygen-free pyrolysis of oily hazardous wastes

Technical Field

The invention relates to a waste residue treatment device, in particular to a complete set of high-temperature anaerobic pyrolysis device for oily hazardous wastes.

Background

Among the hazardous wastes, there are many waste oils, sludge containing waste liquids, oil residues, sludge, wastes, slurries, etc., which are not only large in number but also very difficult to treat and expensive to treat. In the past, the oily hazardous waste is mainly treated by squeezing, burning and landfill technologies, the squeezing treatment has high oil content, the burning treatment has low oil content, but the smoke and the fly ash are large, the secondary pollution is serious, and the oil resource cannot be recovered; the landfill treatment needs to occupy a large amount of land, pollutes the surrounding environment and leaves a great hidden danger. At present, oily hazardous waste is mainly treated by a sealed rotary drying furnace, one set of sealed rotary drying furnace invests 150 ten thousand yuan, oily hazardous waste is treated by 5 tons in three days, and the average treatment cost is 917.4 yuan/ton; the oil content in the treated dry slag is more than 2 percent and is far higher than the requirement that the oil-containing liquid in the dry slag of GB4284-2018 'agricultural sludge pollutant control standard' is less than 3 per thousand. Can not return to farmland, cannot be directly discharged, and is difficult to be used as building materials. In order to improve the treatment technical level of the oily hazardous waste, obviously reduce the oil content in the dry slag after the oily hazardous waste is treated, obviously reduce the treatment cost of the oily hazardous waste, obviously improve the treatment speed, actively recover waste oil and save energy, a complete set of oily hazardous waste high-temperature anaerobic pyrolysis device needs to be explored.

Disclosure of Invention

The invention aims to provide a complete set of high-temperature anaerobic pyrolysis device for oily hazardous wastes.

The technical scheme of the invention is as follows: the complete equipment is characterized by consisting of an anaerobic pyrolysis system, a waste oil rectification system and a waste gas treatment system, wherein the anaerobic pyrolysis system consists of a frame, a feeding hopper, a feeding auxiliary device, an anaerobic pyrolysis device, a fire insulation tank, a buffer tank, a water pump, a vacuum tank, a receiving tank, a dry slag discharge auger, a dry slag outlet, a slag discharge tank, a gas-dust separator, a condenser and an oil-water separator; the waste oil rectification system consists of a reaction kettle, an adsorption tower, a catalytic tower and a fractionating tower, wherein the reaction kettle → the adsorption tower → the catalytic tower → the fractionating tower are sequentially connected by the same pipe and pipe fittings, a waste oil inlet of the reaction kettle is connected with a waste oil outlet of the receiving tank, and the reaction kettle, the adsorption tower, the catalytic tower and the fractionating tower of the waste oil rectification system are arranged on a rack or the ground; the waste gas treatment system consists of a combustion furnace, a primary dust remover, a circulating water pump, a secondary dust remover and a chimney, wherein the combustion furnace → the primary dust remover → the secondary dust remover → the chimney are connected in sequence by the same pipe and pipe fittings, a waste gas inlet of the combustion furnace is connected with a waste gas outlet of the fire insulation tank, and the circulating water pump is used for spraying and reducing dust in the primary dust remover.

The anaerobic pyrolysis device mainly comprises a feed inlet, a coupling, a drive shaft, a screw shaft, a right spiral sheet, a feed end scraping sheet, a discharge end left spiral sheet, a heat insulation layer, an electromagnetic heating coil, a protective layer, an exhaust port, a pipeline, a support shaft, a filler seal, an end cover, a bearing, a discharge port, a main motor return spring, a main motor, a feed hopper return spring, an electromagnetic heating control cabinet and a heating cylinder; the anaerobic pyrolysis device is formed by connecting a first-stage anaerobic pyrolysis device, a second-stage anaerobic pyrolysis device and a third-stage anaerobic pyrolysis device in series in three stages, a feed inlet on the first-stage anaerobic pyrolysis device is connected with a feed hopper, a discharge outlet of the first-stage anaerobic pyrolysis device is connected with a feed inlet of the second-stage anaerobic pyrolysis device, a discharge outlet of the second-stage anaerobic pyrolysis device is connected with a feed inlet of the third-stage anaerobic pyrolysis device, and a discharge outlet of the third-stage anaerobic pyrolysis device is connected with a slag discharge tank; all exhaust ports on all the heating cylinders are connected with a gas-dust separator by pipelines, and the gas-dust separator is connected with the gas-dust separator in parallel; the heating cylinder is made of high-temperature-resistant magnetic-conducting steel, a heat-insulating layer, an electromagnetic heating coil and a protective layer are sequentially arranged outside the heating cylinder, and the heating cylinder is heated by the electromagnetic heating coil; the oily hazardous waste in the heating cylinder is propelled by a screw, and the oily hazardous waste is subjected to high-temperature anaerobic pyrolysis under a vacuum condition; gas and dust are filtered and separated in a gas-dust separator; the front end of the screw shaft is provided with a feed end scraping blade, and the rear end of the screw shaft is provided with a discharge end left spiral blade.

The complete device for the high-temperature anaerobic pyrolysis of the oily hazardous wastes is characterized in that a feeding auxiliary device is arranged on a feeding hole, the feeding auxiliary device is provided with a motor and a rotating shaft, and claw nails are arranged on the rotating shaft; the main motor is a variable frequency motor; the motor of the feeding assistor is also a variable frequency motor; the front end of the spiral shaft is connected with the driving shaft, the rear end of the spiral shaft is connected with the supporting shaft, the heating cylinder is obliquely arranged, the front end of the heating cylinder is relatively lower, the rear end of the heating cylinder is relatively higher, the gas-dust separator is internally provided with the filter element, and the vibrator and the inflating pump are arranged outside the gas-dust separator; the reaction kettle, the adsorption tower, the catalytic tower and the fractionating tower adopt electromagnetic heating; an upper material level sensor and a lower material level sensor are arranged in the slag discharging tank; the heating cylinder is provided with a temperature sensor, the gas-dust separator is provided with a temperature sensor and a pressure sensor, and the temperature sensor and the pressure sensor are connected with the electromagnetic heating control cabinet.

Optimize, above-mentioned oily hazardous waste high temperature anaerobic pyrolysis integrated equipment be equipped with the bracket in the frame, the front end of cartridge heater is put in the frame, when the cartridge heater expands with heat and contracts with cold, the cartridge heater slides in the frame, main motor is put on the bracket, is equipped with main motor reset spring between frame and bracket, is equipped with feed hopper reset spring between frame and feed hopper.

The working principle of the invention is as follows: the method comprises the following steps that (1) oily dangerous waste in a feeding hopper, dry slag in a deslagging tank and vacuum negative pressure of a gas-dust separator are used for forming an anaerobic working environment for a heating cylinder, an electromagnetic heating control cabinet rapidly and electromagnetically heats the heating cylinder through an electromagnetic heating coil, the heating cylinder heats the oily dangerous waste in the heating cylinder, the oily dangerous waste is subjected to high-temperature anaerobic pyrolysis reaction, oil and water in the heating cylinder are gasified, organic matters are subjected to anaerobic combustion, residual slag of the oily dangerous waste is rapidly dried and solidified to form dry slag, and the dry slag in the deslagging tank is discharged by a dry slag auger when a certain amount of the dry slag reaches; the gas-dust separator absorbs oil gas, water vapor, smoke and a small amount of dust in the heating cylinder from the exhaust port by adopting vacuum negative pressure, the dust is blocked by a filter element of the gas-dust separator, the oil gas, the water vapor and the smoke enter a condenser to be cooled and liquefied under the action of the vacuum negative pressure, the oil gas, the water vapor and the smoke enter an oil-water separator, waste oil in the oil-water separator flows into a receiving tank, the waste oil in the receiving tank is pumped into a waste oil rectification system to be treated, and the waste oil is changed into base oil and fuel oil. The waste gas in the condenser enters a waste gas treatment system for treatment. The powdery dry slag processed by the system mainly comprises the following components: the oil content of the dry slag is less than 3 per thousand, the national emission requirement is met, the metal in the dry slag can be recycled, the dry slag can be used as a raw material of building materials, the dry slag can be discharged as common waste slag, and the dry slag can be reused for cultivated land.

The process flow of the invention is as follows: the high-temperature anaerobic pyrolysis line of the oily hazardous waste, the oily hazardous waste → the feeding funnel → the feeding assistor → the anaerobic pyrolysis device carries out high-temperature anaerobic pyrolysis → the slag discharging tank → the dry slag discharging auger → the dry slag outlet; a gas-dust collecting circuit, an oxygen-free pyrolysis device → an exhaust port → a gas-dust separator → a condenser → an oil-water separator → a receiving tank; the waste gas treatment line, condenser → vacuum tank → vacuum pump → buffer tank → fire insulation tank → combustion furnace → primary dust remover → secondary dust remover → chimney; the waste oil rectification system processes a circuit, namely a receiving tank → a reaction kettle → an adsorption tower → a catalytic tower → a fractionating tower.

In the invention, the heating cylinder of the oxygen-free pyrolysis device is made of high-temperature magnetic-conductive steel, a heat-insulating layer can be arranged outside the heating cylinder to prevent the heating cylinder from burning out the electromagnetic heating coil after heating, and a protective layer can be arranged outside the electromagnetic heating coil to protect the electromagnetic heating coil from being injured. A feeding auxiliary device is arranged at a feeding hole of the anaerobic pyrolysis device, so as to promote the oily hazardous waste in a feeding hopper to enter a heating cylinder; a feed end scraping blade is arranged at the front end of a right spiral plate in the heating cylinder, so that the accumulation of oily dangerous waste at the front end of the heating cylinder is reduced; a left spiral plate at the discharge end is arranged at the rear end of the right spiral plate, so that the accumulation of dry slag at the rear end of the heating cylinder is reduced; an upper material level sensor and a lower material level sensor are arranged in the slag discharging tank, so that certain dry slag is stored in the slag discharging tank to achieve the effect of sealing air. The cooling water tank is connected with the water pump and provides cooling water for the condenser.

The complete device for high-temperature anaerobic pyrolysis of oily hazardous waste can treat oily hazardous waste, and can treat combustible and non-combustible domestic garbage, industrial waste, various oily sludge, plant diseases and insect pests, trees, medical waste, plague livestock and poultry and the like. Such as oily domestic waste, industrial solid waste, agricultural solid waste, medical solid waste, sludge, plant diseases and insect pests, trees, pestilence livestock and poultry, paint slag, solid waste phosphatization slag, sludge of water treatment plants, various oil sludge, organic matter sludge, oily metal powder, solvent-containing metal powder and the like.

According to the complete set of high-temperature anaerobic pyrolysis equipment for oily hazardous wastes, disclosed by the invention, in research tests of nearly two years, wastes such as oily iron slag, oily steel slag, oily sludge, oil refining residue, oily petroleum-containing glue residue, oily paint residue, medical solid wastes, kitchen wastes, domestic organic wastes, domestic petrochemical wastes and the like are all treated, and test results show that after various wastes are treated, mineral oil contained in dry residues is less than 3 per thousand, so that the requirements of GB4284-2018 agricultural sludge pollutant control standard are met, and the hygienic indexes of sludge products also meet the requirements of GB4284-2018 agricultural sludge pollutant control standard. After the hazardous waste is treated, the amount of dry slag is greatly reduced, most of the treated dry slag can be reused in cultivated land, and some of the treated dry slag can be reused in building materials and can also be directly discharged.

The conventional sealed rotary drying furnace for treating oily hazardous wastes and the complete set of oily hazardous wastes high-temperature anaerobic pyrolysis equipment for treating oily hazardous wastes are compared and analyzed: the traditional set of sealed rotary drying furnace invests 150 ten thousand yuan, treats 5 tons of oily hazardous waste, takes three days, consumes 60 hours of natural gas x8.3 cubic meters/hour 3.5 yuan/cubic meter =1743 yuan, consumes 60 hours of electricity x 3 degrees/hour 0.8 yuan/degree =144 yuan, consumes 2 people/shift 3 shift/day 3 days 150 yuan/person =2700 yuan, totally consumes 1743,144,2700 =4587 yuan directly in sealed rotary furnace, average needs 917.4 yuan/ton for treating one ton of oily hazardous waste, and takes three days for treating one ton of oily hazardous waste and five tons of oily hazardous waste; meanwhile, the oil content of dry slag treated by the sealed rotary furnace is up to 2 percent, which is far higher than the national discharge standard, the dry slag can not be directly discharged and still belongs to dangerous waste, in the treatment, the waste slag is easy to coke on the inner wall of the sealed rotary furnace, the labor intensity of discharging is very high, the oil evaporated by the sealed rotary furnace is heavy, and the post-treatment is difficult. The complete set of oil hazardous waste high-temperature anaerobic pyrolysis equipment adopts three stages in series, the total investment is 140 ten thousand yuan, the installed power of the anaerobic pyrolysis equipment is 30kw + 3+2.5kw + 3+1.5kw + 3=102kw, 20 tons of oil-containing hazardous waste is treated in one day, the power consumption is 24 hours 100 degrees/hour 0.8 yuan/degree =1920 yuan, the labor cost is 2 people/shift 3 shifts/day 150 yuan/person =900 yuan, the total is 1920 yuan, 1920 yuan is directly consumed, 2820 yuan/20 =141 yuan/ton is required for treating one ton of oil-containing hazardous waste on average, the time for treating one ton of oily hazardous waste is 1.2 hours, the time for treating five tons of oily hazardous waste is 6 hours, the oil content of the treated dry slag is only less than 3 per thousand, the dry slag completely reaches the national emission standard and can be directly discharged, waste slag is not coked on the inner wall of the heating cylinder in the treatment process, the labor intensity of workers is low, the waste oil is not coked on the inner wall of the heating cylinder, carbon black is less, the waste oil is treated by a waste oil rectification system and then is changed into base oil or fuel oil, the cost for treating the waste oil by the waste oil rectification system is about 160 yuan/ton and is far lower than the sale price of the base oil or the fuel oil. Compared with the complete equipment for high-temperature anaerobic pyrolysis of the oily hazardous wastes, the prior sealed rotary drying furnace has the advantages that: the treatment speed is that the former three days can treat 5 tons of waste residues containing oil solution, the latter can treat 20 tons of waste residues containing oil solution one day, and the treatment speed of the latter is 12 times faster than that of the former; the treatment cost is 917.4 yuan/ton, the treatment cost of the latter is 141 yuan/ton, and the treatment cost of the latter is only 15 percent of the former; the oil content of the treated dry residue is up to 2 percent, and the oil content of the treated dry residue is up to 3 per thousand; the treatment quality is that the dry slag after the treatment of the waste oil can not be discharged as waste slag and can only be stored in a sealed manner, the dry slag after the treatment of the waste oil can be discharged, can also be used as a building material raw material and can also be reused in farmland, the waste oil can not be rectified by the existing sealed rotary drying furnace, and the waste oil can only be sold.

The invention has the beneficial effects that: the complete set of high-temperature anaerobic pyrolysis device for oily hazardous wastes has the advantages that the electromagnetic heating speed of the oily hazardous wastes is high, the oil content of dry residues is less than 3 per thousand, the complete set of high-temperature anaerobic pyrolysis device completely meets the national emission requirements, the recovery rate of waste oil is high after the oil is gasified, the energy consumption is low during the treatment of the oily hazardous wastes, the treatment speed is high, the treatment cost is low, the secondary pollution during the treatment is extremely low, the treatment effect is good, the problem of the old and difficult problems troubling the same industry for years is successfully solved, the obvious technical and economic benefits are realized, and the popularization value is realized.

Drawings

FIG. 1 is a schematic connection diagram of the present invention;

FIG. 2 is a schematic perspective view of a rectification system without waste oil according to the present invention;

FIG. 3 is a top view of FIG. 2

FIG. 4 isbase:Sub>A cross-sectional view A-A of FIG. 3;

FIG. 5 is a schematic view of the structure of an anaerobic pyrolysis apparatus (4) in the present invention;

FIG. 6 is an enlarged view of a portion of FIG. 5;

the labels in the figure are: the device comprises a rack 1, a feeding funnel 2, a feeding auxiliary device 3, an anaerobic pyrolysis device 4, a primary anaerobic pyrolysis device 401, a secondary anaerobic pyrolysis device 402, a tertiary anaerobic pyrolysis device 403, a feeding port 4a, a coupler 4b, a driving shaft 4c, a spiral shaft 4d, a right spiral sheet 4e, a feeding end scraping sheet 4e1, a discharging end left spiral sheet 4e2, a heat-insulating layer 4f, an electromagnetic heating coil 4g, a protective layer 4h, an exhaust port 4i, a pipeline 4j, a supporting shaft 4k, a packing seal 4l, an end cover 4m, a bearing 4n, a discharging port 4o, a bracket 4p, a main motor return spring 4q, a main motor 4r, a feeding funnel return spring 4s, an electromagnetic heating control cabinet 4t, a heating cylinder 4u, a fire insulation tank 5, a buffer tank 6, a water pump 7, a vacuum pump 8, a vacuum tank 9, a receiving tank 10, a dry slag discharging auger 11, a dry slag outlet 12, a slag discharging tank 13, a gas-dust separator 14a, a 14b, a vibrator 14a1, a2, a pumping device 14a2, an air pump 15, an air pump 16, a 19, a water separator, a 19, a primary oil-water separator, a catalytic cooling tower 20, a water tank 20, a fractionating tower 25, a water tank 20, a fractionating tower 25, a fractionating tower and a water tank 20.

Detailed Description

The present invention will be further described with reference to the following examples.

Example 1

Referring to fig. 1, 2, 3, 4, 5 and 6, the complete set of high-temperature anaerobic pyrolysis device for oily hazardous waste comprises an anaerobic pyrolysis system, a waste oil rectification system and a waste gas treatment system, wherein the anaerobic pyrolysis system comprises a frame 1, a feeding hopper 2, a feeding auxiliary device 3, an anaerobic pyrolysis device 4, a fire insulation tank 5, a buffer tank 6, a water pump 7, a vacuum pump 8, a vacuum tank 9, a receiving tank 10, a dry slag discharging auger 11, a dry slag outlet 12, a slag discharging tank 13, gas-

dust separators

14a and 14b, a condenser 15 and an oil-water separator 16, the feeding hopper 2, the gas-

dust separators

14a and 14b and the condenser 15 are arranged on the top layer of the frame 1, the anaerobic pyrolysis device 4, the oil-water separator 16, the slag discharging tank 13 and an electromagnetic heating control cabinet 4t are arranged on the lower layer of the pyrolysis device 4, the fire insulation tank 5, the buffer tank 6, the water pump 7, the vacuum pump 8, the vacuum tank 9, the receiving tank 10, the dry slag discharging auger 11, the slag discharging tank 12 and the slag outlet 13 t are arranged on the lower layer of the pyrolysis device 4; the waste oil rectification system consists of a reaction kettle 23, an adsorption tower 24, a catalytic tower 25 and a fractionating tower 26, the reaction kettle 23 → the adsorption tower 24 → the catalytic tower 25 → the fractionating tower 26 are sequentially connected by the same pipe and pipe fittings, a waste oil inlet of the reaction kettle 23 is connected with a waste oil outlet of the receiving tank 10, and the reaction kettle 23, the adsorption tower 24, the catalytic tower 25 and the fractionating tower 26 of the waste oil rectification system are arranged on the frame 1 or the ground; the waste gas treatment system consists of a combustion furnace 17, a primary dust remover 18, a circulating water pump 19, a secondary dust remover 20 and a chimney 21, wherein the combustion furnace 17 → the primary dust remover 18 → the secondary dust remover 20 → the chimney 21 are sequentially connected through the same pipe and pipe fittings, a waste gas inlet of the combustion furnace 17 is connected with a waste gas outlet of the fire insulation tank 5, and the circulating water pump 19 is used for spraying and reducing dust in the primary dust remover 18.

Example 2

dust separators

14a and 14b and the condenser 15 are arranged on the top layer of the frame 1, the anaerobic pyrolysis device 4, the oil-water separator 16, the slag discharging tank 13 and an electromagnetic heating control cabinet 4t are arranged on the lower layer of the pyrolysis device 4, the fire insulation tank 5, the buffer tank 6, the water pump 7, the vacuum pump 8, the vacuum tank 9, the receiving tank 10, the dry slag discharging auger 11, the slag discharging tank 12 and the slag outlet 13 t are arranged on the lower layer of the pyrolysis device 4; the waste oil rectification system consists of a reaction kettle 23, an adsorption tower 24, a catalytic tower 25 and a fractionating tower 26, the reaction kettle 23 → the adsorption tower 24 → the catalytic tower 25 → the fractionating tower 26 are sequentially connected through the same pipe and pipe fittings, a waste oil inlet of the reaction kettle 23 is connected with a waste oil outlet of the receiving tank 10, and the reaction kettle 23, the adsorption tower 24, the catalytic tower 25 and the fractionating tower 26 of the waste oil rectification system are arranged on the frame 1 or the ground; the waste gas treatment system consists of a combustion furnace 17, a primary dust remover 18, a circulating water pump 19, a secondary dust remover 20 and a chimney 21, wherein the combustion furnace 17 → the primary dust remover 18 → the secondary dust remover 20 → the chimney 21 are sequentially connected through the same pipe and pipe fittings, a waste gas inlet of the combustion furnace 17 is connected with a waste gas outlet of the fire insulation tank 5, and the circulating water pump 19 is used for spraying dust in the primary dust remover 18 and the secondary dust remover 20. The anaerobic pyrolysis device 4 mainly comprises a feeding hole 4a, a coupling 4b, a driving shaft 4c, a spiral shaft 4d, a right spiral sheet 4e, a feeding end scraping sheet 4e1, a discharging end left spiral sheet 4e2, a heat insulation layer 4f, an electromagnetic heating coil 4g, a protection layer 4h, an exhaust port 4i, a pipeline 4j, a supporting shaft 4k, a packing seal 4l, an end cover 4m, a bearing 4n, a discharging hole 4o, a main motor return spring 4q, a main motor 4r, a feeding hopper return spring 4s, an electromagnetic heating control cabinet 4t and a heating cylinder 4 u; the anaerobic pyrolysis device 4 is formed by connecting a primary anaerobic pyrolysis device 401, a secondary anaerobic pyrolysis device 402 and a tertiary anaerobic pyrolysis device 403 in series in three stages, a feed port 4a on the primary anaerobic pyrolysis device 401 is connected with a feed hopper 2, a discharge port 4o of the primary anaerobic pyrolysis device 401 is connected with a feed port 4a of the secondary anaerobic pyrolysis device 402, a discharge port 4o of the secondary anaerobic pyrolysis device 402 is connected with a feed port 4a of the tertiary anaerobic pyrolysis device 403, and a discharge port 4o of the tertiary anaerobic pyrolysis device 403 is connected with a slag discharge tank 13; all exhaust ports 4i on all heating cylinders 4u are connected with gas-

dust separators

14a and 14b by pipelines 4j, and the gas-dust separator 14a is connected with the gas-dust separator 14b in parallel; the heating cylinder 4u is made of high-temperature-resistant magnetic-conductive steel, a heat insulation layer 4f, an electromagnetic heating coil 4g and a protection layer 4h are sequentially arranged outside the heating cylinder 4u, and the heating cylinder 4u is heated by the electromagnetic heating coil 4 g; the oily hazardous waste in the heating cylinder 4u is propelled by a screw, and the oily hazardous waste is pyrolyzed at high temperature in an oxygen-free manner under the vacuum condition; gas and dust are filtered and separated in a gas-dust separator; a feed end scraping sheet 4e1 is arranged at the front end of the spiral shaft 4d, and a discharge end left spiral sheet 4e2 is arranged at the rear end of the spiral shaft 4 d.

Example 3

dust separators

14a and 14b and the condenser 15 are arranged on the top layer of the frame 1, the anaerobic pyrolysis device 4, the oil-water separator 16, the slag discharging tank 13 and an electromagnetic heating control cabinet 4t are arranged on the lower layer of the pyrolysis device 4, the fire insulation tank 5, the buffer tank 6, the water pump 7, the vacuum pump 8, the vacuum tank 9, the receiving tank 10, the dry slag discharging auger 11, the slag discharging tank 12 and the slag outlet 13 t are arranged on the lower layer of the pyrolysis device 4; the waste oil rectification system consists of a reaction kettle 23, an adsorption tower 24, a catalytic tower 25 and a fractionating tower 26, the reaction kettle 23 → the adsorption tower 24 → the catalytic tower 25 → the fractionating tower 26 are sequentially connected by the same pipe and pipe fittings, a waste oil inlet of the reaction kettle 23 is connected with a waste oil outlet of the receiving tank 10, and the reaction kettle 23, the adsorption tower 24, the catalytic tower 25 and the fractionating tower 26 of the waste oil rectification system are arranged on the frame 1 or the ground; the waste gas treatment system consists of a combustion furnace 17, a primary dust remover 18, a circulating water pump 19, a secondary dust remover 20 and a chimney 21, wherein the combustion furnace 17 → the primary dust remover 18 → the secondary dust remover 20 → the chimney 21 are sequentially connected through the same pipe and pipe fittings, a waste gas inlet of the combustion furnace 17 is connected with a waste gas outlet of the fire insulation tank 5, and the circulating water pump 19 is used for spraying dust in the primary dust remover 18 and the secondary dust remover 20. A feeding auxiliary device 3 is arranged on the feeding hole 4a, the feeding auxiliary device 3 is provided with a motor and a rotating shaft, and claw nails are arranged on the rotating shaft; the main motor 4r is a variable frequency motor; the motor of the feeding assistor 3 is also a variable frequency motor; the front end of the spiral shaft 4d is connected with a driving shaft 4c, the rear end of the spiral shaft 4d is connected with a supporting shaft 4k, a heating cylinder 4u is obliquely installed, the front end of the heating cylinder 4u is relatively lower, the rear end of the heating cylinder 4u is relatively higher, filter cores are arranged in the gas-

dust separators

14a and 14b, and the vibrators 14a1 and 14b1 and the inflating pump 14a2 are arranged outside the gas-dust separators; the reaction kettle 23, the adsorption tower 24, the catalytic tower 25 and the fractionating tower 26 are electromagnetically heated; an upper material level sensor and a lower material level sensor are arranged in the slag discharge tank 13; a temperature sensor is arranged on the heating cylinder 4u, and a temperature sensor and a pressure sensor are arranged on the gas-

dust separators

14a and 14b and are connected with the electromagnetic heating control cabinet 4 t.

Example 4

dust separators

14a and 14b and the condenser 15 are arranged on the top layer of the frame 1, the anaerobic pyrolysis device 4, the oil-water separator 16, the slag discharging tank 13 and an electromagnetic heating control cabinet 4t are arranged on the lower layer of the pyrolysis device 4, the fire insulation tank 5, the buffer tank 6, the water pump 7, the vacuum pump 8, the vacuum tank 9, the receiving tank 10, the dry slag discharging auger 11, the slag discharging tank 12 and the slag outlet 13 t are arranged on the lower layer of the pyrolysis device 4; the waste oil rectification system consists of a reaction kettle 23, an adsorption tower 24, a catalytic tower 25 and a fractionating tower 26, the reaction kettle 23 → the adsorption tower 24 → the catalytic tower 25 → the fractionating tower 26 are sequentially connected through the same pipe and pipe fittings, a waste oil inlet of the reaction kettle 23 is connected with a waste oil outlet of the receiving tank 10, and the reaction kettle 23, the adsorption tower 24, the catalytic tower 25 and the fractionating tower 26 of the waste oil rectification system are arranged on the frame 1 or the ground; the waste gas treatment system consists of a combustion furnace 17, a primary dust remover 18, a circulating water pump 19, a secondary dust remover 20 and a chimney 21, wherein the combustion furnace 17 → the primary dust remover 18 → the secondary dust remover 20 → the chimney 21 are sequentially connected through the same pipe and pipe fittings, a waste gas inlet of the combustion furnace 17 is connected with a waste gas outlet of the fire insulation tank 5, and the circulating water pump 19 is used for spraying dust in the primary dust remover 18 and the secondary dust remover 20. The anaerobic pyrolysis device 4 mainly comprises a feed inlet 4a, a coupling 4b, a drive shaft 4c, a spiral shaft 4d, a right spiral sheet 4e, a feed end scraping sheet 4e1, a discharge end left spiral sheet 4e2, a heat insulation layer 4f, an electromagnetic heating coil 4g, a protection layer 4h, an exhaust port 4i, a pipeline 4j, a support shaft 4k, a packing seal 4l, an end cover 4m, a bearing 4n, a discharge port 4o, a main motor return spring 4q, a main motor 4r, a feed hopper return spring 4s, an electromagnetic heating control cabinet 4t and a heating cylinder 4 u; the anaerobic pyrolysis device 4 is formed by connecting a primary anaerobic pyrolysis device 401, a secondary anaerobic pyrolysis device 402 and a tertiary anaerobic pyrolysis device 403 in series in three stages, a feed port 4a on the primary anaerobic pyrolysis device 401 is connected with a feed hopper 2, a discharge port 4o of the primary anaerobic pyrolysis device 401 is connected with a feed port 4a of the secondary anaerobic pyrolysis device 402, a discharge port 4o of the secondary anaerobic pyrolysis device 402 is connected with a feed port 4a of the tertiary anaerobic pyrolysis device 403, and a discharge port 4o of the tertiary anaerobic pyrolysis device 403 is connected with a slag discharge tank 13; all exhaust ports 4i on all heating cylinders 4u are connected with gas-

dust separators

14a and 14b by pipelines 4j, and the gas-dust separator 14a is connected with the gas-dust separator 14b in parallel; the heating cylinder 4u is made of high-temperature-resistant magnetic-conductive steel, a heat insulation layer 4f, an electromagnetic heating coil 4g and a protection layer 4h are sequentially arranged outside the heating cylinder 4u, and the heating cylinder 4u is heated by the electromagnetic heating coil 4 g; the oily hazardous waste in the heating cylinder 4u is spirally propelled, and the oily hazardous waste is subjected to high-temperature anaerobic pyrolysis under the vacuum condition; gas and dust are filtered and separated in a gas-dust separator; a feed end scraping sheet 4e1 is arranged at the front end of the spiral shaft 4d, and a discharge end left spiral sheet 4e2 is arranged at the rear end of the spiral shaft 4 d. The feeding port 4a is provided with a feeding assistor 3, the feeding assistor 3 is provided with a motor and a rotating shaft, and the rotating shaft is provided with a claw nail; the main motor 4r is a variable frequency motor; the motor of the feeding assistor 3 is also a variable frequency motor; the front end of the spiral shaft 4d is connected with a driving shaft 4c, the rear end of the spiral shaft 4d is connected with a supporting shaft 4k, a heating cylinder 4u is obliquely installed, the front end of the heating cylinder 4u is relatively lower, the rear end of the heating cylinder 4u is relatively higher, filter cores are arranged in the gas-

dust separators

Example 5

dust separators

14a and 14b and the condenser 15 are arranged on the top layer of the frame 1, the anaerobic pyrolysis device 4, the oil-water separator 16, the slag discharging tank 13 and an electromagnetic heating control cabinet 4t are arranged on the lower layer of the pyrolysis device 4, the fire insulation tank 5, the buffer tank 6, the water pump 7, the vacuum pump 8, the vacuum tank 9, the receiving tank 10, the dry slag discharging auger 11, the slag discharging tank 12 and the slag outlet 13 t are arranged on the lower layer of the pyrolysis device 4; the waste oil rectification system consists of a reaction kettle 23, an adsorption tower 24, a catalytic tower 25 and a fractionating tower 26, the reaction kettle 23 → the adsorption tower 24 → the catalytic tower 25 → the fractionating tower 26 are sequentially connected by the same pipe and pipe fittings, a waste oil inlet of the reaction kettle 23 is connected with a waste oil outlet of the receiving tank 10, and the reaction kettle 23, the adsorption tower 24, the catalytic tower 25 and the fractionating tower 26 of the waste oil rectification system are arranged on the frame 1 or the ground; the waste gas treatment system consists of a combustion furnace 17, a primary dust remover 18, a circulating water pump 19, a secondary dust remover 20 and a chimney 21, wherein the combustion furnace 17 → the primary dust remover 18 → the secondary dust remover 20 → the chimney 21 are sequentially connected through the same pipe and pipe fittings, a waste gas inlet of the combustion furnace 17 is connected with a waste gas outlet of the fire insulation tank 5, and the circulating water pump 19 is used for spraying dust in the primary dust remover 18 and the secondary dust remover 20. The frame 1 is provided with a bracket 4p, the front end of the heating cylinder 4u is placed on the frame 1, when the heating cylinder 4u expands with heat and contracts with cold, the heating cylinder 4u slides on the frame 1, the main motor 4r is placed on the bracket 4p, a main motor return spring 4q is arranged between the frame 1 and the bracket 4p, and a feeding funnel return spring 4s is arranged between the frame 1 and the feeding funnel 2.

Example 6

dust separators

14a and 14b and the condenser 15 are arranged on the top layer of the frame 1, the anaerobic pyrolysis device 4, the oil-water separator 16, the slag discharging tank 13 and an electromagnetic heating control cabinet 4t are arranged on the lower layer of the pyrolysis device 4, the fire insulation tank 5, the buffer tank 6, the water pump 7, the vacuum pump 8, the vacuum tank 9, the receiving tank 10, the dry slag discharging auger 11, the slag discharging tank 12 and the slag outlet 13 t are arranged on the lower layer of the pyrolysis device 4; the waste oil rectification system consists of a reaction kettle 23, an adsorption tower 24, a catalytic tower 25 and a fractionating tower 26, the reaction kettle 23 → the adsorption tower 24 → the catalytic tower 25 → the fractionating tower 26 are sequentially connected by the same pipe and pipe fittings, a waste oil inlet of the reaction kettle 23 is connected with a waste oil outlet of the receiving tank 10, and the reaction kettle 23, the adsorption tower 24, the catalytic tower 25 and the fractionating tower 26 of the waste oil rectification system are arranged on the frame 1 or the ground; the waste gas treatment system consists of a combustion furnace 17, a primary dust remover 18, a circulating water pump 19, a secondary dust remover 20 and a chimney 21, the combustion furnace 17 → the primary dust remover 18 → the secondary dust remover 20 → the chimney 21 are sequentially connected through the same pipe and pipe fittings, a waste gas inlet and outlet of the combustion furnace 17 is connected with a waste gas outlet of the fire insulation tank 5, and the circulating water pump 19 is used for spraying dust in the primary dust remover 18 and the secondary dust remover 20. The anaerobic pyrolysis device 4 mainly comprises a feed inlet 4a, a coupling 4b, a drive shaft 4c, a spiral shaft 4d, a right spiral sheet 4e, a feed end scraping sheet 4e1, a discharge end left spiral sheet 4e2, a heat insulation layer 4f, an electromagnetic heating coil 4g, a protection layer 4h, an exhaust port 4i, a pipeline 4j, a support shaft 4k, a packing seal 4l, an end cover 4m, a bearing 4n, a discharge port 4o, a main motor return spring 4q, a main motor 4r, a feed hopper return spring 4s, an electromagnetic heating control cabinet 4t and a heating cylinder 4 u; the anaerobic pyrolysis device 4 is formed by serially connecting a primary anaerobic pyrolysis device 401, a secondary anaerobic pyrolysis device 402 and a tertiary anaerobic pyrolysis device 403 in three levels, a feed inlet 4a on the primary anaerobic pyrolysis device 401 is connected with the feed hopper 2, a discharge outlet 4o of the primary anaerobic pyrolysis device 401 is connected with a feed inlet 4a of the secondary anaerobic pyrolysis device 402, a discharge outlet 4o of the secondary anaerobic pyrolysis device 402 is connected with a feed inlet 4a of the tertiary anaerobic pyrolysis device 403, and a discharge outlet 4o of the tertiary anaerobic pyrolysis device 403 is connected with the slag discharge tank 13; all exhaust ports 4i on all heating cylinders 4u are connected with gas-

dust separators

14a and 14b by pipelines 4j, and the gas-dust separator 14a is connected with the gas-dust separator 14b in parallel; the heating cylinder 4u is made of high-temperature-resistant magnetic-conductive steel, a heat insulation layer 4f, an electromagnetic heating coil 4g and a protection layer 4h are sequentially arranged outside the heating cylinder 4u, and the heating cylinder 4u is heated by the electromagnetic heating coil 4 g; the oily hazardous waste in the heating cylinder 4u is propelled by a screw, and the oily hazardous waste is pyrolyzed at high temperature in an oxygen-free manner under the vacuum condition; gas and dust are filtered and separated in a gas-dust separator; a feed end scraping sheet 4e1 is arranged at the front end of the spiral shaft 4d, and a discharge end left spiral sheet 4e2 is arranged at the rear end of the spiral shaft 4 d. The frame 1 is provided with a bracket 4p, the front end of the heating cylinder 4u is placed on the frame 1, when the heating cylinder 4u expands with heat and contracts with cold, the heating cylinder 4u slides on the frame 1, the main motor 4r is placed on the bracket 4p, a main motor return spring 4q is arranged between the frame 1 and the bracket 4p, and a feeding funnel return spring 4s is arranged between the frame 1 and the feeding funnel 2.

Example 7

dust separators

14a and 14b and the condenser 15 are arranged on the top layer of the frame 1, the anaerobic pyrolysis device 4, the oil-water separator 16, the slag discharging tank 13 and an electromagnetic heating control cabinet 4t are arranged on the lower layer of the pyrolysis device 4, the fire insulation tank 5, the buffer tank 6, the water pump 7, the vacuum pump 8, the vacuum tank 9, the receiving tank 10, the dry slag discharging auger 11, the slag discharging tank 12 and the slag outlet 13 t are arranged on the lower layer of the pyrolysis device 4; the waste oil rectification system consists of a reaction kettle 23, an adsorption tower 24, a catalytic tower 25 and a fractionating tower 26, the reaction kettle 23 → the adsorption tower 24 → the catalytic tower 25 → the fractionating tower 26 are sequentially connected by the same pipe and pipe fittings, a waste oil inlet of the reaction kettle 23 is connected with a waste oil outlet of the receiving tank 10, and the reaction kettle 23, the adsorption tower 24, the catalytic tower 25 and the fractionating tower 26 of the waste oil rectification system are arranged on the frame 1 or the ground; the waste gas treatment system consists of a combustion furnace 17, a primary dust remover 18, a circulating water pump 19, a secondary dust remover 20 and a chimney 21, the combustion furnace 17 → the primary dust remover 18 → the secondary dust remover 20 → the chimney 21 are sequentially connected through the same pipe and pipe fittings, a waste gas inlet and outlet of the combustion furnace 17 is connected with a waste gas outlet of the fire insulation tank 5, and the circulating water pump 19 is used for spraying dust in the primary dust remover 18 and the secondary dust remover 20. The anaerobic pyrolysis device 4 mainly comprises a feed inlet 4a, a coupling 4b, a drive shaft 4c, a spiral shaft 4d, a right spiral sheet 4e, a feed end scraping sheet 4e1, a discharge end left spiral sheet 4e2, a heat insulation layer 4f, an electromagnetic heating coil 4g, a protection layer 4h, an exhaust port 4i, a pipeline 4j, a support shaft 4k, a packing seal 4l, an end cover 4m, a bearing 4n, a discharge port 4o, a main motor return spring 4q, a main motor 4r, a feed hopper return spring 4s, an electromagnetic heating control cabinet 4t and a heating cylinder 4 u; the anaerobic pyrolysis device 4 is formed by connecting a primary anaerobic pyrolysis device 401, a secondary anaerobic pyrolysis device 402 and a tertiary anaerobic pyrolysis device 403 in series in three stages, a feed port 4a on the primary anaerobic pyrolysis device 401 is connected with a feed hopper 2, a discharge port 4o of the primary anaerobic pyrolysis device 401 is connected with a feed port 4a of the secondary anaerobic pyrolysis device 402, a discharge port 4o of the secondary anaerobic pyrolysis device 402 is connected with a feed port 4a of the tertiary anaerobic pyrolysis device 403, and a discharge port 4o of the tertiary anaerobic pyrolysis device 403 is connected with a slag discharge tank 13; all exhaust ports 4i on all heating cylinders 4u are connected with gas-

dust separators

14a and 14b and are connected with the electromagnetic heating control cabinet 4 t. The frame 1 is provided with a bracket 4p, the front end of the heating cylinder 4u is placed on the frame 1, when the heating cylinder 4u expands with heat and contracts with cold, the heating cylinder 4u slides on the frame 1, the main motor 4r is placed on the bracket 4p, a main motor return spring 4q is arranged between the frame 1 and the bracket 4p, and a feeding funnel return spring 4s is arranged between the frame 1 and the feeding funnel 2.

Claims

1. A complete set of high-temperature anaerobic pyrolysis device for oily hazardous wastes is characterized by comprising an anaerobic pyrolysis system, a waste oil rectification system and a waste gas treatment system, wherein the anaerobic pyrolysis system consists of a rack (1), a feeding hopper (2), a feeding auxiliary device (3), an anaerobic pyrolysis device (4), a fire insulation tank (5), a buffer tank (6), a water pump (7), a vacuum pump (8), a vacuum tank (9), a receiving tank (10), a dry slag discharging auger (11), a dry slag outlet (12), a slag discharging tank (13), gas-dust separators (14 a, 14 b), a condenser (15) and an oil-water separator (16), wherein the feeding hopper (2), the gas-dust separators (14 a, 14 b) and the condenser (15) are arranged on the top layer of the rack (1), the anaerobic pyrolysis device (4), an oil-water separator (16), a slag discharging tank (13) and an electromagnetic heating control cabinet (4 t) are arranged on the lower layer of the top layer of the pyrolysis device (4)), the fire insulation tank (5), the buffer tank (6), the vacuum pump (7), the vacuum tank (9), the dry slag discharging auger (11), the dry slag discharging tank (13) and the electromagnetic heating control cabinet (4); the waste oil rectification system consists of a reaction kettle (23), an adsorption tower (24), a catalytic tower (25) and a fractionating tower (26), the reaction kettle (23) → the adsorption tower (24) → the catalytic tower (25) → the fractionating tower (26) are connected with one pipe and a pipe fitting in sequence, a waste oil inlet of the reaction kettle (23) is connected with a waste oil outlet of the receiving tank (10), and the reaction kettle (23), the adsorption tower (24), the catalytic tower (25) and the fractionating tower (26) of the waste oil rectification system are installed on a rack (1) or the ground; the waste gas treatment system comprises a combustion furnace (17), a primary dust remover (18), a circulating water pump (19), a secondary dust remover (20) and a chimney (21), wherein the combustion furnace (17) → the primary dust remover (18) → the secondary dust remover (20) → the chimney (21) are connected with a same pipe and a pipe in sequence, a waste gas inlet and outlet of the combustion furnace (17) is connected with a waste gas outlet of the fire insulation tank (5), and the circulating water pump (19) is used for spraying dust and reducing dust into the primary dust remover (18).

2. The complete set of oily hazardous waste high-temperature anaerobic pyrolysis device according to claim 1, characterized in that the anaerobic pyrolysis device (4) mainly comprises a feeding port (4 a), a coupler (4 b), a driving shaft (4 c), a spiral shaft (4 d), a right spiral sheet (4 e), a feeding end scraping sheet (4 e 1), a discharging end left spiral sheet (4 e 2), a heat insulation layer (4 f), an electromagnetic heating coil (4 g), a protection layer (4 h), an exhaust port (4 i), a pipeline (4 j), a supporting shaft (4 k), a packing seal (4 l), an end cover (4 m), a bearing (4 n), a discharging port (4 o), a main motor reset spring (4 q), a main motor (4 r), a feeding funnel reset spring (4 s), an electromagnetic heating control cabinet (4 t) and a heating cylinder (4 u); the anaerobic pyrolysis device (4) is formed by connecting a first-stage anaerobic pyrolysis device (401), a second-stage anaerobic pyrolysis device (402) and a third-stage anaerobic pyrolysis device (403) in series in three stages, a feed inlet (4 a) on the first-stage anaerobic pyrolysis device (401) is connected with the feed hopper (2), a discharge outlet (4 o) of the first-stage anaerobic pyrolysis device (401) is connected with a feed inlet (4 a) of the second-stage anaerobic pyrolysis device (402), a discharge outlet (4 o) of the second-stage anaerobic pyrolysis device (402) is connected with a feed inlet (4 a) of the third-stage anaerobic pyrolysis device (403), and a discharge outlet (4 o) of the third-stage anaerobic pyrolysis device (403) is connected with the slag discharge tank (13); all exhaust ports (4 i) on all heating cylinders (4 u) are connected with gas-dust separators (14 a, 14 b) by pipelines (4 j), and the gas-dust separators (14 a) and the gas-dust separators (14 b) are connected in parallel; the heating cylinder (4 u) is made of high-temperature-resistant magnetic-conductive steel, a heat insulation layer (4 f), an electromagnetic heating coil (4 g) and a protection layer (4 h) are sequentially arranged outside the heating cylinder (4 u), and the heating cylinder (4 u) is heated by the electromagnetic heating coil (4 g); the oily hazardous waste in the heating cylinder (4 u) is propelled by a screw, and the oily hazardous waste is pyrolyzed at high temperature and without oxygen under the vacuum condition; gas and dust are filtered and separated in a gas-dust separator; a feed end scraping blade (4 e 1) is arranged at the front end of the spiral shaft (4 d), and a discharge end left spiral blade (4 e 2) is arranged at the rear end of the spiral shaft (4 d).

3. The complete set of oily hazardous waste high-temperature anaerobic pyrolysis device according to claim 1 or 2, characterized in that a feeding auxiliary device (3) is arranged on the feeding port (4 a), the feeding auxiliary device (3) is provided with a motor and a rotating shaft, and the rotating shaft is provided with claws; the main motor (4 r) is a variable frequency motor; the motor of the feeding auxiliary device (3) is also a variable frequency motor; the front end of the screw shaft (4 d) is connected with the driving shaft (4 c), the rear end of the screw shaft (4 d) is connected with the supporting shaft (4 k), the heating cylinder (4 u) is obliquely installed, the front end of the heating cylinder (4 u) is relatively lower, the rear end of the heating cylinder (4 u) is relatively higher, filter cores are arranged in the gas-dust separators (14 a and 14 b), and the vibrators (14 a1 and 14b 1) and the inflating pump (14 a 2) are arranged outside the gas-dust separators; the reaction kettle (23), the adsorption tower (24), the catalytic tower (25) and the fractionating tower (26) adopt electromagnetic heating; an upper material level sensor and a lower material level sensor are arranged in the slag discharging tank (13); a temperature sensor is arranged on the heating cylinder (4 u), a temperature sensor and a pressure sensor are arranged on the gas-dust separators (14 a, 14 b), and the temperature sensor and the pressure sensor are connected with the electromagnetic heating control cabinet (4 t).

4. The complete set of oily hazardous waste high-temperature anaerobic pyrolysis device according to claim 1 or 2, characterized in that a bracket (4 p) is arranged on the frame (1), the front end of the heating cylinder (4 u) is placed on the frame (1), the heating cylinder (4 u) slides on the frame (1) when the heating cylinder (4 u) expands with heat and contracts with cold, the main motor (4 r) is placed on the bracket (4 p), a main motor return spring (4 q) is arranged between the frame (1) and the bracket (4 p), and a feeding hopper return spring (4 s) is arranged between the frame (1) and the feeding hopper (2).

5. The complete set of oily hazardous waste high-temperature anaerobic pyrolysis device according to claim 3, characterized in that a bracket (4 p) is arranged on the frame (1), the front end of the heating cylinder (4 u) is placed on the frame (1), the heating cylinder (4 u) slides on the frame (1) when the heating cylinder (4 u) expands with heat and contracts with cold, the main motor (4 r) is placed on the bracket (4 p), a main motor return spring (4 q) is arranged between the frame (1) and the bracket (4 p), and a feeding funnel return spring (4 s) is arranged between the frame (1) and the feeding funnel (2).