A waste recycling device

Abstract

The utility model discloses a kind of waste recycling devices, belong to petroleum drilling processing equipment technical field, including raw material bin, rotary kiln, cooling machine, elevator, secondary combustion chamber, first dust collector, waste heat boiler, second dust collector and spray tower, raw material bin is set in the feed end of rotary kiln, the feed end of cooling machine corresponds with the discharge end of rotary kiln, the lower end feed inlet of elevator corresponds with the discharge end of cooling machine, the air inlet of secondary combustion chamber and the smoke outlet of rotary kiln are communicated by pipeline, the air outlet of secondary combustion chamber and the air inlet of first dust collector are communicated by pipeline, the exhaust port of first dust collector and the air inlet of waste heat boiler are communicated by pipeline, the air outlet of waste heat boiler and the air inlet of second dust collector are communicated by pipeline, the air outlet of second dust collector and the air inlet of spray tower are communicated by pipeline. It can better realize the reduction of drilling rock debris, harmless, resourceful treatment, improve the utilization of resources.

Description

Technical Field

[0001] This utility model belongs to the technical field of oil drilling processing equipment, specifically relating to a waste recycling device. Background Technology

[0002] Oil drilling cuttings are rock particles that are ground or broken by the drill bit during drilling. These cuttings contain harmful substances such as heavy metals, petroleum hydrocarbons, and chemical additives from drilling fluids. If directly discharged into the environment, they will cause environmental pollution. Currently, the main approach is to separate the solid and liquid components, recycle the liquid, and landfill the solid. However, the harmful components in the solid are not effectively treated, and they still cause environmental pollution. How to reduce, render harmless, and recycle these cuttings is an urgent problem to be solved. Utility Model Content

[0003] The purpose of this utility model is to provide a waste recycling device that has a simple structure, is easy to use, and can effectively improve the above-mentioned problems.

[0004] The embodiments of this utility model are implemented as follows:

[0005] This utility model provides a waste recycling device, including a raw material silo, a rotary kiln, a cooler, a hoist, a secondary combustion chamber, a first dust collector, a waste heat boiler, a second dust collector, and a spray tower. The raw material silo is located at the feed end of the rotary kiln. The feed end of the cooler corresponds to the discharge end of the rotary kiln. The lower feed inlet of the hoist corresponds to the discharge end of the cooler. The air inlet of the secondary combustion chamber is connected to the exhaust outlet of the rotary kiln via a pipe. The air outlet of the secondary combustion chamber is connected to the air inlet of the first dust collector via a pipe. The exhaust outlet of the first dust collector is connected to the air inlet of the waste heat boiler via a pipe. The air outlet of the waste heat boiler is connected to the air inlet of the second dust collector via a pipe. The air outlet of the second dust collector is connected to the air inlet of the spray tower via a pipe.

[0006] Furthermore, the exhaust port of the cooler is connected to the spray tower via a pipe, and a third dust collector is installed on the pipe.

[0007] Furthermore, the third dust collector is a cyclone dust collector.

[0008] Furthermore, a finished product bin is provided below the discharge end of the elevator.

[0009] Furthermore, the elevator is a screw conveyor.

[0010] Furthermore, the first dust collector is a cyclone dust collector.

[0011] Furthermore, the second dust collector is a pulse dust collector.

[0012] Furthermore, the cooler is a multi-cylinder cooler.

[0013] The beneficial effects of this utility model are as follows:

[0014] The waste recycling device provided by this utility model can effectively reduce, harmlessly treat, and recycle drilling cuttings. Rotary kiln incineration can remove most harmful substances, and the resulting slag can be used as concrete aggregate or roadbed filler. The exhaust gas generated by the rotary kiln is incinerated and treated with dust removal to meet emission standards. The waste heat boiler can recover and utilize the heat in the exhaust gas, further improving the utilization rate of resources. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0016] Figure 1 A schematic diagram of the waste recycling device provided for an embodiment of this utility model;

[0017] Figure 2 This is a schematic diagram of the hoist.

[0018] In the diagram: 1-Raw material silo; 2-Rotary kiln; 3-Cooler; 4-Elevator; 5-Secondary combustion chamber; 6-First dust collector; 7-Waste heat boiler; 8-Second dust collector; 9-Spray tower; 10-Finished product silo; 11-Third dust collector. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0020] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0021] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0022] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0023] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, a direct connection, or an indirect connection through an intermediate medium; or they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] refer to Figure 1 As shown, this utility model provides a waste recycling device, including a raw material silo 1, a rotary kiln 2, a cooler 3, an elevator 4, a secondary combustion chamber 5, a first dust collector 6, a waste heat boiler 7, a second dust collector 8, and a spray tower 9.

[0025] Raw material silo 1 is used to temporarily store dehydrated drilling cuttings.

[0026] The discharge port of raw material silo 1 is connected to the feed port of rotary kiln 2. In this way, the raw materials in raw material silo 1 can flow into rotary kiln 2 for processing. The raw materials are burned at high temperature inside rotary kiln 2, with the burning temperature exceeding 900℃, which can remove organic pollutants from rock chips. The residue after burning can be used as concrete aggregate and roadbed seasoning, etc.

[0027] Cooler 3 is located at the discharge end of rotary kiln 2, and its inlet is connected to the discharge outlet of rotary kiln 2. Thus, the material after combustion in rotary kiln 2 flows into cooler 3 for cooling. In this embodiment, cold air is used to cool the material. The cold air is blown in from the rear end of cooler 3, and the material tumbles and moves backward within cooler 3, ensuring a good cooling effect. In this embodiment, cooler 3 is a multi-cylinder cooler 3.

[0028] The elevator 4 is located at the discharge end of the cooler 3. In this embodiment, refer to... Figure 2 As shown, the elevator 4 uses a screw conveyor. The lower feed hopper of the screw conveyor is connected to the discharge port of the cooler 3. The material flowing out of the cooler 3 discharge port falls directly into the feed hopper of the screw conveyor and is then lifted upwards by the screw blades. This upward transport facilitates transfer; for example, a transfer cart can be parked directly below the discharge end of the screw conveyor, and the material flows out from the discharge end and falls into the transfer cart, which is convenient and fast. Alternatively, a finished product bin 10 can be installed below the discharge end of the screw conveyor. The material is temporarily stored in the finished product bin 10 and then released from it, using a transfer cart or other transfer equipment to move it to a designated location. The finished product bin has a large capacity and can store a large amount of material, ensuring that the rotary kiln 2 can operate continuously for a long time without worrying about the storage of tail material.

[0029] The secondary combustion chamber 5 is used to burn the gas at high temperature. The air inlet of the secondary combustion chamber 5 is connected to the exhaust port of the rotary kiln 2 through a pipe. The exhaust gas produced by combustion in the rotary kiln 2 will contain some organic matter that has not been completely burned. If it is released into the air, it will cause pollution to the environment. Therefore, by setting up the secondary combustion chamber 5, the exhaust gas is treated again at high temperature to remove some harmful components that can be decomposed by high temperature.

[0030] The first dust collector 6 is a cyclone dust collector. The outlet of the secondary combustion chamber 5 is connected to the inlet of the first dust collector 6 through a pipeline. In this embodiment, two first dust collectors 6 are provided and connected in series. The combustion exhaust gas of the rotary kiln 2 contains a large amount of dust. After combustion in the secondary combustion chamber 5, the dust still exists. Therefore, dust removal treatment is required before emission. The exhaust gas generated by the secondary combustion chamber 5 enters the first dust collector 6, which can remove most of the dust.

[0031] The exhaust gas from the secondary combustion chamber 5 has a high temperature. In order to avoid energy waste, the heat energy can be utilized. In this embodiment, a waste heat boiler 7 is used to recover and utilize the heat energy. The air inlet of the waste heat boiler 7 is connected to the exhaust outlet of the first dust collector 6 through a pipeline. In this way, after the gas passes through the waste heat boiler 7, the gas not only reduces the gas temperature, but also recovers and utilizes the heat.

[0032] The waste heat boiler 7 is also equipped with a second dust collector 8 at its rear end. The second dust collector 8 is a pulse dust collector. The air outlet of the waste heat boiler 7 and the air inlet of the second dust collector 8 are connected by a pipeline. The second dust collector 8 can further filter the dust in the gas.

[0033] The outlet of the second dust collector 8 is connected to the inlet of the spray tower 9 through a pipeline. The spray tower 9 is used to further cool the gas and remove some harmful components from the gas, thereby ensuring that the gas meets emission standards.

[0034] The exhaust port of the cooler 3 is connected to the spray tower 9 via a pipe, and a third dust collector 11 is installed on the pipe. Because the main harmful substance in the exhaust gas generated by the cooler 3 is dust, the exhaust gas generated by the cooler 3 meets the emission standards after being treated by the third dust collector 11 and the spray tower 9. In this embodiment, the third dust collector 11 is also a cyclone dust collector.

[0035] This utility model is not limited to the above-mentioned optional embodiments. Anyone can derive other forms of products under the guidance of this utility model. However, regardless of any changes made in its shape or structure, any technical solution that falls within the scope of the claims of this utility model shall be protected by this utility model.

Claims

1. A waste recycling device, characterized in that: The system includes a raw material silo, a rotary kiln, a cooler, a hoist, a secondary combustion chamber, a first dust collector, a waste heat boiler, a second dust collector, and a spray tower. The raw material silo is located at the feed end of the rotary kiln. The feed end of the cooler corresponds to the discharge end of the rotary kiln. The lower feed inlet of the hoist corresponds to the discharge end of the cooler. The air inlet of the secondary combustion chamber is connected to the exhaust outlet of the rotary kiln via a pipeline. The air outlet of the secondary combustion chamber is connected to the air inlet of the first dust collector via a pipeline. The exhaust outlet of the first dust collector is connected to the air inlet of the waste heat boiler via a pipeline. The air outlet of the waste heat boiler is connected to the air inlet of the second dust collector via a pipeline. The air outlet of the second dust collector is connected to the air inlet of the spray tower via a pipeline.

2. The waste recycling device according to claim 1, characterized in that: The exhaust port of the cooler is connected to the spray tower via a pipe, and a third dust collector is installed on the pipe.

3. The waste recycling device according to claim 2, characterized in that: The third dust collector is a cyclone dust collector.

4. The waste recycling device according to claim 1, characterized in that: The elevator has a finished product bin located below its discharge end.

5. The waste recycling device according to claim 1, characterized in that: The elevator is a screw conveyor.

6. The waste recycling device according to claim 1, characterized in that: The first dust collector is a cyclone dust collector.

7. The waste recycling device according to claim 1, characterized in that: The second dust collector is a pulse dust collector.

8. The waste recycling device according to claim 1, characterized in that: The cooler is a multi-cylinder cooler.

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