A method for co-disposing of waste small packaging barrels in cement kilns

Abstract

The present invention relates to the technical field of disposal of waste small packaging barrels, and specifically to a method for co-disposal of waste small packaging barrels with a cement kiln; the small packaging barrels are fed into a vertical cutting machine to obtain material (a). Material (a) is then fed into a traveling crane for secondary cutting to obtain material (b); material (b) is fed into a shearing crusher for crushing to obtain material (c); material (c) is fed into a flat die forming machine for extrusion to obtain material (d); material (d) is fed into a gasification furnace for incineration, the discharged slag enters a magnetic separation belt conveyor, and the material after magnetic separation is fed into a cement kiln raw material warehouse, mixed with limestone, sandstone and the like, and calcined to obtain cement clinker. This method processes both waste gas and waste materials as resources, fully utilizes materials, and is environmentally friendly.

Description

Technical Field

[0001] The invention relates to the technical field of disposal of waste small packaging barrels, in particular to a method for co-disposal of waste small packaging barrels with a cement kiln. Background Art

[0002] Packaging waste refers to various packaging materials discarded after packaging industry production and commodity consumption. According to the different sources of packaging waste, it can be divided into two categories: one is the packaging waste returned by the packaging industry itself, that is, the scraps, scraps, waste and defective products generated in the production process of packaging products; the second is various waste packaging materials used in production and life, such as metal barrels, cans; plastic boxes, barrels, bottles, film bags; cartons, paper boxes and glass bottles, etc.

[0003] For example, Chinese patent CN202122334294.X discloses a waste packaging barrel shredding device, which belongs to the field of waste recycling. A waste packaging barrel shredding device includes a strip crushing mechanism and a block crushing mechanism. The strip crushing mechanism includes a first shell, and a water filter plate is fixedly connected to the interior of the first shell. The interior of the strip crushing mechanism is separated into a processing chamber and a liquid storage chamber by the water filter plate. The processing chamber is located at the upper end of the water filter plate, and the liquid storage chamber is located at the lower end of the water filter plate. A spiral guide rail is provided on the inner wall of the processing chamber, and a tool fixing seat is slidably connected to the interior of the spiral guide rail. It can realize the relatively simple cutting of the packaging barrel into block-shaped waste, greatly reducing the difficulty of packaging in subsequent work, reducing the work intensity of operators, and improving work efficiency. It can also separate liquid and waste in the process of cutting the packaging barrel, and automatically collect the liquid.

[0004] For example, Chinese patent CN201910788705.7 relates to a device and method for repairing waste packaging barrels based on a cement kiln system. The repair device includes a repair system, a drying system and a waste collection and disposal system. The repair system includes a loading area, a drying area, a polishing area, a painting area and a discharging area, which are used to respectively perform the loading step, the drying step, the polishing step, the painting step and the discharging step. The drying system includes a hot air duct and an exhaust gas duct, which is connected to the drying area through the hot air duct to pre-dry the waste packaging barrels. The exhaust gas in the drying area, the polishing area and the painting area is collected through the exhaust gas duct to the high temperature section of the cement kiln for incineration disposal. The waste collection and disposal includes a cleaning mechanism, a collection mechanism, a conveying mechanism and a disposal mechanism. The waste in the loading area, the drying area, the polishing area and the painting area is collected and transported to the disposal mechanism via the conveying mechanism for disposal.

[0005] Dioxins are produced during the incineration of waste packaging barrels. They are toxic and harmful chemicals that are difficult to completely remove. Dioxins cause serious pollution in the air and water, which can affect people's health. In the past few decades, many researchers have tried to find a method to effectively remove dioxins. The most commonly used method is to use adsorption materials such as activated carbon, but these adsorption materials have an imperfect pore structure, so the removal effect is not ideal. Summary of the invention

[0006] 1. Technical issues to be resolved

[0007] In view of the above technical defects, the purpose of the present invention is to provide a method for co-disposing of waste small packaging barrels in cement kilns, which can reduce the energy consumption required for treatment, simplify the exhaust gas disposal process, and greatly reduce dioxin emissions.

[0008] (II) Technical solution

[0009] In order to achieve the above object, the present invention provides the following technical solutions:

[0010] A method for co-disposing of waste small packaging barrels in a cement kiln, the operating steps of which are as follows:

[0011] Step 1: feeding the small packaging barrel into a vertical cutting machine to obtain material (a), then feeding material (a) into a traveling crane, twisting it 90 degrees, and cutting it a second time to obtain material (b), feeding material (b) into a shearing crusher to obtain material (c) after crushing, feeding material (c) into a flat die forming machine to obtain material (d) after extrusion;

[0012] Step 2: feeding material (d) into a gasifier for incineration, controlling the temperature of the gasifier for incineration treatment, and discharging slag into a magnetic separation belt conveyor. The magnetically separated material is fed into a cement kiln raw material warehouse, mixed with limestone, sandstone, etc. to obtain cement raw material;

[0013] Step 3: The cement raw material obtained in the above step is fed into a rotary kiln and calcined at 1200-1400° C. to obtain cooked cement.

[0014] Preferably, in step 1, the size of material (c) does not exceed 30 mm.

[0015] Preferably, in step 1, the particle size of material (d) does not exceed 1 mm.

[0016] Preferably, the gasifier in step 2 is a fixed circular building with air as the medium, the smoke outlet at the top first passes through an adsorption tower and then is connected to the cement kiln decomposition furnace, and a slag discharge device is provided at the bottom.

[0017] Preferably, in step 2, the temperature of the gasifier is controlled to be 850-900°C.

[0018] Preferably, the incineration time of the gasifier in step 2 is 10-30 seconds.

[0019] Preferably, in step 2, the proportion of slag added when mixing limestone, sandstone and the like is 5-8%.

[0020] Preferably, adsorption filler is added to the adsorption tower, and the added amount is 30-45% of the volume content of the adsorption tower.

[0021] Preferably, the adsorption filler is an organic metal material that adsorbs dioxins, and is prepared by an addition reaction, and the preparation steps are as follows:

[0022] S1: by weight, 100-120 parts of titanium dioxide, 2-5 parts of mercaptosiloxane, 500-800 parts of water, control the reaction temperature to 25-40°C, react for 2-5 hours, filter, and dry to obtain mercaptosilane-coated titanium dioxide;

[0023] S2: Mix 100-120 parts of mercaptosilane-coated titanium dioxide and 2-5 parts of tetrabromobisphenol A bisallyl ether, add 500-800 parts of ethylene dichloride and 2-5 parts of triethylamine, react for 2-5 hours, add 0.5-2 parts of azobisisoheptanenitrile and 0.05-0.3 parts of vinylferrocene, react for 12-15 hours, filter, and dry to obtain an organic metal material that adsorbs dioxins;

[0024] S3: Mixing with activated carbon, adding an amount of 0.08-0.2% of the activated carbon mass percentage to obtain an adsorption filler.

[0025] Preferably, the mercaptosilane includes at least one of mercaptopropyltrimethoxysilane and mercaptopropyltriethoxysilane.

[0026] In the present invention, in the preparation process of the organic metal material, mercaptosilane-coated titanium dioxide reacts with tetrabromobisphenol A bisallyl ether through addition reaction, and then forms a copolymer with vinyl ferrocene. The composite contains a large amount of active carboxylic acid esters, which synergize with iron and titanium to form an organic metal material that adsorbs dioxins; the iron and titanium ions in the material form active points, which react with dioxin molecules to produce a weak π-π process, thereby achieving efficient adsorption of dioxins.

[0027] (III) Beneficial effects

[0028] Compared with the prior art, the present invention provides a method for co-disposing of waste small packaging barrels in a cement kiln, which has the following beneficial effects:

[0029] 1. This method first uses a cutting machine to cut the waste small packaging barrels for pretreatment, then sends them to a shearing crusher for crushing, and then sends them to a flat die forming machine for extrusion to obtain small particles. The pretreated packaging barrels greatly improve the incineration efficiency during subsequent incineration treatment and reduce the energy consumption required for treatment.

[0030] 2. This method utilizes the high temperature hot air characteristics of the gasification furnace to provide a heat source for burning the materials attached to the waste small packaging barrels, thereby removing the pollution characteristics of the packaging barrels.

[0031] 3. In this method, the top of the gasifier is connected to the cement kiln decomposition furnace, and a slag outlet is provided at the bottom. The slag is sent to the cement kiln raw material warehouse after magnetic separation to be mixed with limestone, sandstone, etc. The waste gas and waste materials are processed as resources, making full use of materials and being green and environmentally friendly.

[0032] 4. This method prepares an organic metal material for adsorbing dioxins by using an addition reaction. The iron and titanium ions in the adsorbent material form active points, which react with dioxin molecules to produce a weak π-π process, thereby achieving efficient adsorption of dioxins. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] Example 1

[0035] A method for co-disposing of waste small packaging barrels in a cement kiln, the operating steps of which are as follows:

[0036] Step 1: feeding the small packaging barrel into a vertical cutting machine to obtain material (a), then feeding material (a) into a traveling crane, twisting it 90 degrees, and cutting it a second time to obtain material (b), feeding material (b) into a shearing crusher to obtain material (c) after crushing, feeding material (c) into a flat die forming machine to obtain material (d) after extrusion;

[0037] Step 2: feeding material (d) into a gasifier for incineration, controlling the temperature of the gasifier for incineration treatment, and discharging slag into a magnetic separation belt conveyor. The magnetically separated material is fed into a cement kiln raw material warehouse, mixed with limestone, sandstone, etc. to obtain cement raw material;

[0038] Step 3: The cement raw material obtained in the above step is fed into a rotary kiln and calcined at 1200° C. to obtain cooked cement.

[0039] In step 1, the size of material (c) does not exceed 30 mm.

[0040] The particle size of the material (d) in step 1 does not exceed 1 mm.

[0041] The gasifier in step 2 is a fixed circular building with air as the medium. The smoke outlet at the top first passes through an adsorption tower and then is connected to the cement kiln decomposition furnace. A slag discharge device is provided at the bottom.

[0042] In step 2, the temperature of the gasifier is controlled to be 850°C.

[0043] The incineration time of the gasifier in step 2 is 10 seconds.

[0044] In the step 2, the proportion of slag added when mixing limestone, sandstone and other ingredients is 5%.

[0045] The adsorption tower is added with adsorption filler, and the added amount is 30% of the volume content of the adsorption tower.

[0046] The adsorption filler is an organic metal material that adsorbs dioxins and is prepared by an addition reaction. The preparation steps are as follows:

[0047] S1: 1000g titanium dioxide, 20g mercaptosiloxane, 5000g water, control the reaction temperature to 25°C, react for 5h, filter, and dry to obtain mercaptosilane-coated titanium dioxide.

[0048] S2: 1000g of mercaptosilane-coated titanium dioxide and 20g of tetrabromobisphenol A bisallyl ether were mixed, 5000g of ethylene dichloride and 20g of triethylamine were added, and the mixture was reacted for 2h, and then 5g of azobisisoheptanenitrile and 0.5g of vinylferrocene were added, and the mixture was reacted for 12h, filtered, and dried to obtain an organic metal material for adsorbing dioxins;

[0049] S3: Mixing with activated carbon in an amount of 0.08% by mass of the activated carbon to obtain an adsorption filler.

[0050] The mercaptosilane is mercaptopropyltrimethoxysilane.

[0051] Example 2

[0052] A method for co-disposing of waste small packaging barrels in a cement kiln, the operating steps of which are as follows:

[0053] Step 1: feeding the small packaging barrel into a vertical cutting machine to obtain material (a), then feeding material (a) into a traveling crane, twisting it 90 degrees, and cutting it a second time to obtain material (b), feeding material (b) into a shearing crusher to obtain material (c) after crushing, feeding material (c) into a flat die forming machine to obtain material (d) after extrusion;

[0054] Step 2: feeding material (d) into a gasifier for incineration, controlling the temperature of the gasifier for incineration treatment, and discharging slag into a magnetic separation belt conveyor. The magnetically separated material is fed into a cement kiln raw material warehouse, mixed with limestone, sandstone, etc. to obtain cement raw material;

[0055] Step 3: The cement raw material obtained in the above step is fed into a rotary kiln and calcined at 1300° C. to obtain cooked cement.

[0056] In step 1, the size of material (c) does not exceed 30 mm.

[0057] The particle size of the material (d) in step 1 does not exceed 1 mm.

[0058] The gasifier in step 2 is a fixed circular building with air as the medium. The smoke outlet at the top first passes through an adsorption tower and then is connected to the cement kiln decomposition furnace. A slag discharge device is provided at the bottom.

[0059] In step 2, the temperature of the gasifier is controlled to be 850°C.

[0060] The incineration time of the gasifier in step 2 is 20 seconds.

[0061] In the step 2, the proportion of slag added when mixing limestone, sandstone and other ingredients is 6%.

[0062] The adsorption tower is added with adsorption filler, and the added amount is 40% of the volume content of the adsorption tower.

[0063] The adsorption filler is an organic metal material that adsorbs dioxins and is prepared by an addition reaction. The preparation steps are as follows:

[0064] S1: 1100g titanium dioxide, 3g mercaptosiloxane, 6500g water, control the reaction temperature to 35°C, react for 3h, filter, and dry to obtain mercaptosilane-coated titanium dioxide.

[0065] S2: 1100g of mercaptosilane-coated titanium dioxide and 30g of tetrabromobisphenol A bisallyl ether were mixed, 7000g of ethylene dichloride and 40g of triethylamine were added, and the mixture was reacted for 4h, and then 12g of azobisisoheptanenitrile and 2g of vinylferrocene were added, and the mixture was reacted for 14h, filtered, and dried to obtain an organic metal material for adsorbing dioxins;

[0066] S3: Mixing with activated carbon in an amount of 0.1% of the activated carbon content by mass to obtain an adsorption filler.

[0067] The mercaptosilane is mercaptopropyltrimethoxysilane.

[0068] Example 3

[0069] A method for co-disposing of waste small packaging barrels in a cement kiln, the operating steps of which are as follows:

[0070] Step 1: feeding the small packaging barrel into a vertical cutting machine to obtain material (a), then feeding material (a) into a traveling crane, twisting it 90 degrees, and cutting it a second time to obtain material (b), feeding material (b) into a shearing crusher to obtain material (c) after crushing, feeding material (c) into a flat die forming machine to obtain material (d) after extrusion;

[0071] Step 2: feeding material (d) into a gasifier for incineration, controlling the temperature of the gasifier for incineration treatment, and discharging slag into a magnetic separation belt conveyor. The magnetically separated material is fed into a cement kiln raw material warehouse, mixed with limestone, sandstone, etc. to obtain cement raw material;

[0072] Step 3: The cement raw material obtained in the above step is fed into a rotary kiln and calcined at 1400° C. to obtain cooked cement.

[0073] In step 1, the size of material (c) does not exceed 30 mm.

[0074] The particle size of the material (d) in step 1 does not exceed 1 mm.

[0075] The gasifier in step 2 is a fixed circular building with air as the medium. The smoke outlet at the top first passes through an adsorption tower and then is connected to the cement kiln decomposition furnace. A slag discharge device is provided at the bottom.

[0076] In step 2, the temperature of the gasifier is controlled to be 900°C.

[0077] The incineration time of the gasifier in step 2 is 30 seconds.

[0078] In the step 2, the proportion of slag added when mixing limestone, sandstone and other ingredients is 8%.

[0079] The adsorption tower is added with adsorption filler, and the added amount is 45% of the volume content of the adsorption tower.

[0080] The adsorption filler is an organic metal material that adsorbs dioxins and is prepared by an addition reaction. The preparation steps are as follows:

[0081] S1: 1200g titanium dioxide, 50g mercaptosiloxane, 8000g water, control the reaction temperature to 40°C, react for 5h, filter, and dry to obtain mercaptosilane-coated titanium dioxide.

[0082] S2: 1200g of mercaptosilane-coated titanium dioxide and 50g of tetrabromobisphenol A bisallyl ether were mixed, 8000g of ethylene dichloride and 50g of triethylamine were added, and the mixture was reacted for 5h, and then 20g of azobisisoheptanenitrile and 3g of vinylferrocene were added, and the mixture was reacted for 15h, filtered, and dried to obtain an organic metal material for adsorbing dioxins;

[0083] S3: Mixing with activated carbon in an amount of 0.2% of the activated carbon mass percentage to obtain an adsorption filler.

[0084] The mercaptosilane is mercaptopropyltriethoxysilane.

[0085] Comparative Example 1

[0086] A method for co-disposing of waste small packaging barrels in a cement kiln, the operating steps of which are as follows:

[0087] Step 1: feeding the small packaging barrel into a vertical cutting machine to obtain material (a), then feeding material (a) into a traveling crane, twisting it 90 degrees, and cutting it a second time to obtain material (b), feeding material (b) into a shearing crusher to obtain material (c) after crushing, feeding material (c) into a flat die forming machine to obtain material (d) after extrusion;

[0088] Step 2: feeding material (d) into a gasifier for incineration, controlling the temperature of the gasifier for incineration treatment, and discharging slag into a magnetic separation belt conveyor. The magnetically separated material is fed into a cement kiln raw material warehouse, mixed with limestone, sandstone, etc. to obtain cement raw material;

[0089] Step 3: The cement raw material obtained in the above step is fed into a rotary kiln and calcined at 1200° C. to obtain cooked cement.

[0090] In step 1, the size of material (c) does not exceed 30 mm.

[0091] The particle size of the material (d) in step 1 does not exceed 1 mm.

[0092] The gasifier in step 2 is a fixed circular building with air as the medium. The smoke outlet at the top first passes through an adsorption tower and then is connected to the cement kiln decomposition furnace. A slag discharge device is provided at the bottom.

[0093] In step 2, the temperature of the gasifier is controlled to be 850°C.

[0094] The incineration time of the gasifier in step 2 is 10 seconds.

[0095] In the step 2, the proportion of slag added when mixing limestone, sandstone and other ingredients is 5%.

[0096] The adsorption tower is added with adsorption filler, and the added amount is 30% of the volume content of the adsorption tower.

[0097] The adsorption filler is activated carbon.

[0098] Comparative Example 2

[0099] A method for co-disposing of waste small packaging barrels in a cement kiln, the operating steps of which are as follows:

[0100] Step 1: feeding the small packaging barrel into a vertical cutting machine to obtain material (a), then feeding material (a) into a traveling crane, twisting it 90 degrees, and cutting it a second time to obtain material (b), feeding material (b) into a shearing crusher to obtain material (c) after crushing, feeding material (c) into a flat die forming machine to obtain material (d) after extrusion;

[0101] Step 2: feeding material (d) into a gasifier for incineration, controlling the temperature of the gasifier for incineration treatment, and discharging slag into a magnetic separation belt conveyor. The magnetically separated material is fed into a cement kiln raw material warehouse, mixed with limestone, sandstone, etc. to obtain cement raw material;

[0102] Step 3: The cement raw material obtained in the above step is fed into a rotary kiln and calcined at 1200° C. to obtain cooked cement.

[0103] In step 1, the size of material (c) does not exceed 30 mm.

[0104] The particle size of the material (d) in step 1 does not exceed 1 mm.

[0105] The gasifier in step 2 is a fixed circular building with air as the medium. The smoke outlet at the top first passes through an adsorption tower and then is connected to the cement kiln decomposition furnace. A slag discharge device is provided at the bottom.

[0106] In step 2, the temperature of the gasifier is controlled to be 850°C.

[0107] The incineration time of the gasifier in step 2 is 10 seconds.

[0108] In the step 2, the proportion of slag added when mixing limestone, sandstone and other ingredients is 5%.

[0109] The adsorption tower is added with adsorption filler, and the added amount is 30% of the volume content of the adsorption tower.

[0110] The adsorption filler is an organic metal material that adsorbs dioxins and is prepared by an addition reaction. The preparation steps are as follows:

[0111] S1: 1000g titanium dioxide, 20g mercaptosiloxane, 5000g water, control the reaction temperature to 25°C, react for 5h, filter, and dry to obtain mercaptosilane-coated titanium dioxide.

[0112] S2: 1000g of mercaptosilane-coated titanium dioxide, 5000g of ethylene dichloride, 20g of triethylamine, react for 2h, then add 5g of azobisisoheptanenitrile and 0.5g of vinylferrocene, react for 12h, filter, and dry to obtain an organic metal material that adsorbs dioxins;

[0113] S3: Mixing with activated carbon in an amount of 0.08% by mass of the activated carbon to obtain an adsorption filler.

[0114] The mercaptosilane is mercaptopropyltrimethoxysilane.

[0115] Comparative Example 3

[0116] A method for co-disposing of waste small packaging barrels in a cement kiln, the operating steps of which are as follows:

[0117] Step 1: feeding the small packaging barrel into a vertical cutting machine to obtain material (a), then feeding material (a) into a traveling crane, twisting it 90 degrees, and cutting it a second time to obtain material (b), feeding material (b) into a shearing crusher to obtain material (c) after crushing, feeding material (c) into a flat die forming machine to obtain material (d) after extrusion;

[0118] Step 2: feeding material (d) into a gasifier for incineration, controlling the temperature of the gasifier for incineration treatment, and discharging slag into a magnetic separation belt conveyor. The magnetically separated material is fed into a cement kiln raw material warehouse, mixed with limestone, sandstone, etc. to obtain cement raw material;

[0119] Step 3: The cement raw material obtained in the above step is fed into a rotary kiln and calcined at 1200° C. to obtain cooked cement.

[0120] In step 1, the size of material (c) does not exceed 30 mm.

[0121] The particle size of the material (d) in step 1 does not exceed 1 mm.

[0122] The gasifier in step 2 is a fixed circular building with air as the medium. The smoke outlet at the top first passes through an adsorption tower and then is connected to the cement kiln decomposition furnace. A slag discharge device is provided at the bottom.

[0123] In step 2, the temperature of the gasifier is controlled to be 850°C.

[0124] The incineration time of the gasifier in step 2 is 10 seconds.

[0125] In the step 2, the proportion of slag added when mixing limestone, sandstone and other ingredients is 5%.

[0126] The adsorption tower is added with adsorption filler, and the added amount is 30% of the volume content of the adsorption tower.

[0127] The adsorption filler is an organic metal material that adsorbs dioxins and is prepared by an addition reaction. The preparation steps are as follows:

[0128] S1: 1000g titanium dioxide, 20g mercaptosiloxane, 5000g water, control the reaction temperature to 25°C, react for 5h, filter, and dry to obtain mercaptosilane-coated titanium dioxide.

[0129] S2: 1000 g of mercaptosilane-coated titanium dioxide and 20 g of tetrabromobisphenol A bisallyl ether were mixed, 5000 g of ethylene dichloride and 20 g of triethylamine were added, the mixture was reacted for 2 h, 5 g of azobisisoheptanenitrile was added, the mixture was reacted for 12 h, the mixture was filtered, and the mixture was dried to obtain an organic metal material for adsorbing dioxins;

[0130] S3: Mixing with activated carbon in an amount of 0.08% by mass of the activated carbon to obtain an adsorption filler.

[0131] The mercaptosilane is mercaptopropyltrimethoxysilane.

[0132] In the laboratory, we tested the amount of dioxins adsorbed on the flue gas and adsorption materials in the gasifiers of the above embodiments and comparative examples, and the results are shown in the following table:

[0133]

[0134]

[0135] It should be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0136] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A method for co-disposal of waste small packaging barrels in cement kilns, the operating steps of which are: Step 1: Send the small packaging barrel into the vertical cutting machine to obtain material a, then send material a into the traveling crane, twist it 90 degrees, and cut it again to obtain material b, send material b into the shear crusher, and obtain material c after crushing, and send material c into the flat die forming machine to obtain material d after extrusion; Step 2: Feed material d into a gasifier for incineration, control the temperature of the gasifier for incineration, and discharge the slag into a magnetic separation belt conveyor. The magnetically separated material is fed into a cement kiln raw material warehouse, mixed with limestone and sandstone to obtain cement raw material. Step 3: feeding the cement raw material obtained in the above step into a rotary kiln and calcining it at 1200-1400° C. to obtain cooked cement; The gasifier in step 2 is a fixed circular building, with air as the medium, the smoke outlet at the top first passes through an adsorption tower, and then is connected to the cement kiln decomposition furnace, and a slag discharge device is provided at the bottom; Add adsorption filler into the adsorption tower, the added amount is 30-45% of the volume content of the adsorption tower; The adsorption filler is an organic metal material that adsorbs dioxins and is prepared by an addition reaction. The preparation steps are as follows: S1: by weight, 100-120 parts of titanium dioxide, 2-5 parts of mercaptosiloxane, 500-800 parts of water, control the reaction temperature to 25-40°C, react for 2-5 hours, filter, and dry to obtain mercaptosilane-coated titanium dioxide; S2: Mix 100-120 parts of mercaptosilane-coated titanium dioxide and 2-5 parts of tetrabromobisphenol A bisallyl ether, add 500-800 parts of ethylene dichloride and 2-5 parts of triethylamine, react for 2-5 hours, add 0.5-2 parts of azobisisoheptanenitrile and 0.05-0.3 parts of vinylferrocene, react for 12-15 hours, filter, and dry to obtain an organic metal material that adsorbs dioxins.

2. The method for co-disposal of waste small packaging barrels in cement kilns according to claim 1, characterized in that: In step 1, the size of material c does not exceed 30 mm.

3. The method for co-disposal of waste small packaging barrels in cement kilns according to claim 1, characterized in that: In step 1, the particle size of material d does not exceed 1 mm.

4. The method for co-disposal of waste small packaging barrels in cement kilns according to claim 1, characterized in that: In step 2, the temperature of the gasifier is controlled at 850-900°C.

5. The method for co-disposal of waste small packaging barrels in cement kilns according to claim 1, characterized in that: The incineration time of the gasifier in step 2 is 10-30 seconds.

6. The method for co-disposal of waste small packaging barrels in cement kilns according to claim 1, characterized in that: In the step 2, the proportion of slag added when mixed with limestone and sandstone is 5-8%.

7. The method for co-disposal of waste small packaging barrels in cement kilns according to claim 1, characterized in that: The mercaptosilane includes at least one of mercaptopropyltrimethoxysilane and mercaptopropyltriethoxysilane.

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