Special solid hazardous waste incineration feeding device

Abstract

The utility model discloses a special solid-state hazardous waste incineration feeding device, and belongs to the technical field of solid-state hazardous waste feeding devices. The feeding device is composed of a feeding electric gate valve, a feeding bin and a discharging electric gate valve. The feeding electric gate valve is installed on the top of the feeding bin. The inner wall of the feeding bin is smooth and cylindrical, the feeding bin is connected with a furnace end of the incinerator by forming an included angle of more than 45 degrees between the axis of the cylinder and the horizontal plane, and the discharging electric gate valve is arranged at the joint of the feeding bin and the furnace end of the incinerator; and when the discharging electric gate valve is opened, the bottom of the feeding bin is communicated with the interior of the furnace end of the incinerator. The feeding electric gate valve and the discharging electric gate valve are respectively opened and closed, so that the sealing performance of the feeding bin and the incinerator is guaranteed, part of highly toxic waste is prevented from being in contact reaction with other hazardous waste, harm to a human body caused by possibly generated volatile gas is avoided, the device is also guaranteed not to be influenced by gas explosion, and the service life of the incinerator is prolonged. And the equipment maintenance cost is saved.

Description

Technical Field

[0001] The utility model belongs to the technical field of solid hazardous waste feeding devices, and in particular relates to a safe special solid hazardous waste incineration feeding device. Background Art

[0002] Hazardous waste refers to waste that is directly or indirectly toxic, flammable, infectious, damaging, or otherwise harmful. Hazardous waste incineration feeding is the process of sending the hazardous waste collected from various automobile factories, hospitals, biochemical laboratories, pharmaceutical factories, and chemical plants to the incinerator for incineration. It mainly involves transporting hazardous waste to the incinerator through the feeding device, fully burning it in the high-temperature area of ​​the incinerator, and achieving a comprehensive process of high-temperature decomposition, deep oxidation, and detoxification.

[0003] At present, the traditional feeding methods include push rod feeding and screw feeding. These two feeding methods use the gravity of hazardous waste to slide through the hydraulic gate to the chute and enter the incinerator. During this feeding process, the packaging of hazardous waste is very easy to be damaged under the force of the hydraulic gate, gravity and the squeezing force of other hazardous wastes. At this time, some dust-like wastes begin to disperse and heat under the influence of the air pressure in the furnace, causing gas explosions; some highly toxic wastes come into contact with other hazardous wastes and react, and the volatilized gases cause serious harm to the human body. Utility Model Content

[0004] The purpose of the utility model is to solve the above-mentioned deficiencies in the prior art, and to propose a safe special solid hazardous waste incineration feeding device. Special solid hazardous waste mainly refers to solid hazardous waste that is highly toxic or powdery and prone to gas explosion, such as aluminum powder, zinc powder, cyanide, etc. Hazardous waste containing highly toxic substances reacts with other hazardous wastes, and the volatilized gases have a great negative impact on human health; powdered hazardous waste is very susceptible to heat and gas explosion at the front end of the feed, which can easily cause damage to equipment and buildings, and increase the maintenance and operation costs of the incinerator. When special solid hazardous waste is fed through the feeding device, the volume of large-packaged dust-type hazardous waste needs to be pre-processed. The volume can be reduced by the method of subpackaging to ensure that the dust-type waste can be placed in the feeding device.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A safe special solid hazardous waste incineration feeding device consists of a feeding electric gate valve, a feeding bin and a discharging electric gate valve, wherein the feeding electric gate valve is installed on the top of the feeding bin; the inner wall of the feeding bin is smooth and cylindrical, the feeding bin is connected to the burner of the incinerator with the axis of the cylinder forming an angle of more than 45° with the horizontal plane, and the discharging electric gate valve is arranged at the connection between the feeding bin and the burner of the incinerator; when the discharging electric gate valve is opened, the bottom of the feeding bin is communicated with the inside of the burner of the incinerator; the feeding bin is made of thick-walled (1.5 to 3.0 cm) metal materials, including but not limited to cast iron and 304 stainless steel.

[0007] Preferably, the feed electric gate valve and the discharge electric gate valve should be a sealed structure with the feed bin, and the feed electric gate valve and the discharge electric gate valve can be made of high-temperature resistant metal materials with consistent appearance and model, including but not limited to cast iron and 304 stainless steel.

[0008] Compared with the prior art, the beneficial effects of the utility model are:

[0009] 1. In the utility model, the incineration feeding device is composed of a feeding electric gate valve, a feeding bin, and a discharging electric gate valve. The feeding frequency is controlled by opening / closing the discharging electric gate valve, thereby realizing the separate and safe feeding of special solid hazardous wastes. After entering the feeding bin, the special solid hazardous wastes directly enter the incinerator, and the dust-like wastes are prevented from being dispersed and heated by the air pressure in the furnace, which may cause gas explosions.

[0010] 2. In the utility model, the sealing of the feed bin and the incinerator is ensured by respectively opening and closing the feed electric gate valve and the discharge electric gate valve, thereby avoiding the contact reaction between some highly toxic wastes and other hazardous wastes.

[0011] In summary, the utility model can control the feeding more safely, avoid the harm to human body caused by the volatile gas, ensure that the equipment is not affected by gas explosion, and save the equipment maintenance cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the device of the utility model;

[0013] The names of the various parts are: feed electric gate valve 1, feed bin 2, discharge electric gate valve 3, incinerator 4; the size, model and material of the feed electric gate valve 1 and the discharge electric gate valve 3 are completely consistent. DETAILED DESCRIPTION

[0014] Example 1

[0015] The embodiments of the present invention are described in detail below. The embodiments described with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0016] Reference Figure 1 The utility model provides a safe special solid hazardous waste incineration feeding device, including a feeding electric gate valve 1, with a valve diameter of 80 cm and a valve thickness of 2 cm; a feeding bin 2, with a length of 70 cm, an inner diameter of 76 cm, an outer diameter of 80 cm, and a wall thickness of 2 cm; a discharging electric gate valve 3, with a valve diameter of 80 cm and a valve thickness of 2 cm; and an incinerator 4. The valve diameters of the feeding electric gate valve 1 and the discharging electric gate valve 3 are equal to the outer diameter of the feeding bin.

[0017] Before the start of work, the special solid hazardous waste incineration feeding device described in the utility model seals the connection between the feeding electric gate valve 1, the feeding bin 2, and the discharging electric gate valve 3 to ensure that the smoke generated during the treatment process of the incinerator 4 will not leak; before the special solid hazardous waste is fed, the discharging electric gate valve 3 is ensured to be in a closed state. After the start of work, first open the feeding electric gate valve 1, put the special solid hazardous waste into the feeding bin 2, the inside of the feeding bin 2 is smooth and has little friction, and the special solid hazardous waste slides to the front of the discharging electric gate valve 3 under the action of gravity; at this time, close the feeding electric gate valve 1, start the discharging electric gate valve 3 through the electric switch, and the special solid hazardous waste falls into the incinerator 4 through the furnace head for incineration treatment.

[0018] In some embodiments of the utility model, the feed electric gate valve 1 and the discharge electric gate valve 3 should not be opened at the same time. When they are opened at the same time, it is easy to cause the gas pressure of the incinerator 4 to fluctuate, and the toxic gas and temperature in the furnace are easy to leak out, causing harm to the human body. When using, ensure that one electric gate valve is in a completely closed state. The electric gate valve adopts the common motor-driven gate valve on the market, which is convenient and quick to operate.

[0019] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. All modifications, equivalent replacements, etc. made within the principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A special solid hazardous waste incineration feeding device, characterized by: The invention is composed of a feed electric gate valve (1), a feed bin (2) and a discharge electric gate valve (3). The feed electric gate valve (1) is installed on the top of the feed bin (2). The inner wall of the feed bin (2) is smooth and cylindrical. The feed bin (2) is connected to the burner head of an incinerator (4) at an angle of more than 45° between the axis of the cylinder and the horizontal plane. The discharge electric gate valve (3) is arranged at the connection between the feed bin (2) and the burner head of the incinerator (4).

2. A special solid hazardous waste incineration feeding device as claimed in claim 1, characterized in that: The feed bin (2) is made of metal material with a wall thickness of 1.5 to 3 cm.

3. A special solid hazardous waste incineration feeding device as claimed in claim 1, characterized in that: The feed electric gate valve (1) and the discharge electric gate valve (3) are not opened at the same time.

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