Acetylene waste recovery device
By introducing ball mills and catalysts into the acetylene reactor, combining gas collection tanks and filter presses, efficient recycling of acetylene waste is achieved, and the problems of cumbersome processes and many equipment in the existing technology are solved, which reduces the maintenance workload and acetylene gas dissipation, and improves the workshop environment.
Patent Information
- Application Number
- CN202422387786.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-29
- Publication Date
- 2025-08-22
- Estimated Expiration
- 2034-09-29
AI Technical Summary
The existing acetylene waste recycling process is complicated, the number of equipment is large, the maintenance and cleaning work is large, and the acetylene gas in the waste is bleak, resulting in a harsh workshop environment.
By connecting the first ball mill to the acetylene reactor and adding a catalyst, the unreacted calcium carbide is fully reacted during the grinding process, and the solvent and solute are separated through the gas collection tank and the filter press, and the soluble matter in the residue cake is further separated in combination with the second ball mill and the filter press, reducing water resource consumption and realizing the reuse of solvent.
The acetylene waste recycling process has been simplified, the number of equipment and cleaning and maintenance work has been reduced, the acetylene gas escape has been reduced, and the workshop environment has been improved.
Smart Images
Figure CN223255165U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of chemical waste treatment, in particular to an acetylene waste recovery device. Background Art
[0002] The industrial preparation of acetylene often uses the method of calcium carbide hydrolysis. The main reaction formula of hydrolysis is: CaC2+2H2O=C2H2+Ca(OH)2. As can be seen from the reaction formula, the preparation of acetylene by calcium carbide hydrolysis consumes a lot of water. A certain amount of acetylene will produce a corresponding amount of Ca(OH)2, that is, calcium carbide slag. Under normal circumstances, the calcium carbide slag slurry discharged from the wet generator has a solid content of 5% to 15% and a water content of 85% to 95%. It is in a liquid state. Since calcium carbide slag is highly alkaline and contains harmful substances such as sulfides, if it is not properly handled, it will inevitably lead to serious environmental pollution. The treated calcium carbide slag can be used to produce cement. In addition, it can also be used to make bleaching solution, potassium chlorate, etc., and can be used to neutralize acidic wastewater instead of calcium hydroxide. Considering that there may be calcium carbide that has not yet reacted completely and acetylene gas that has not yet been collected in the acetylene waste, the recovery process has always been cumbersome, using a large number of equipment and a large amount of maintenance and cleaning work. In addition, the workshop environment inside the recycling workshop is poor due to the acetylene gas in the waste escaping into the air. Therefore, it is necessary to develop an acetylene waste recovery device that can simplify the acetylene waste recovery process, reduce applicable equipment, reduce the cleaning and maintenance workload, and reduce the acetylene gas leakage in the waste. Utility Model Content
[0003] In response to the above technical problems, the utility model provides a method for simplifying the acetylene waste recycling process, reducing applicable equipment, reducing the workload of cleaning and maintenance, and reducing the escape of acetylene gas in the waste, so as to solve the problems that the existing recycling process has always been cumbersome, using a large number of equipment, with a large workload of maintenance and cleaning, and the workshop environment inside the recycling workshop is poor due to the escape of acetylene gas in the waste into the air.
[0004] In order to solve the above technical problems, the utility model discloses an acetylene waste recovery device, comprising an acetylene reactor, wherein the upper part of the acetylene reactor is connected to a first gas collection tank through a pipeline, and the lower part of the acetylene reactor is connected to a purification tank and a first ball mill through pipelines respectively. The upper part of the first ball mill is connected to a second gas collection tank through a pipeline, and one side is connected to a first filter press through a pipeline. The lower end of the first filter press is connected to the purification tank through a pipeline, and a conveyor belt is provided at the lower part. The other end of the conveyor belt is arranged at the feed port of the second ball mill. The second ball mill is connected to the second filter press through a pipeline. The lower part of the second filter press is provided with a discharge conveyor belt, and the lower end is connected to the purification tank through a pipeline.
[0005] Furthermore, a catalyst pipeline is connected above the first ball mill.
[0006] Furthermore, a clean water pipe is fixedly connected above the second ball mill.
[0007] Compared with the prior art, the present invention has the following advantages:
[0008] The utility model connects a first ball mill to an acetylene reactor and introduces a catalyst, so that the unreacted calcium carbide in the acetylene reactor can fully react during the grinding process, thereby eliminating the need for slag removal, sedimentation and stirring, and allowing the gas in the slurry that is not collected by the first gas collection tank to enter the second gas collection tank, and then the solvent and solute in the waste material ground into slurry are separated by the first filter press, and the soluble impurities in the slag cake can be separated by grinding the slurry with the second ball mill and separating the solute with the second filter press. The solvent separated by the two filter presses can be reused in the preparation of acetylene gas after being treated in a purification tank. BRIEF DESCRIPTION OF THE DRAWINGS
[0009] Figure 1 This is a schematic diagram of the structure of the utility model.
[0010] In the figure: 1. acetylene reactor, 2. first gas collecting tank, 3. second gas collecting tank, 4. purification tank, 5. first ball mill, 6. first filter press, 7. second ball mill, 8. second filter press. DETAILED DESCRIPTION
[0011] The present invention will be further described below with reference to the accompanying drawings.
[0012] like Figure 1 The acetylene waste recovery device shown includes an acetylene reactor 1. In order to facilitate the collection of acetylene gas generated during the reaction process, the upper part of the acetylene reactor 1 is connected to the first gas collection tank 2 through a pipeline, and the lower part of the acetylene reactor 1 is connected to the purification tank 4 and the first ball mill 5 through pipelines respectively. In order to facilitate the collection of acetylene in the waste that is not collected by the first gas collection tank 2, and the gas generated by the incompletely reacted calcium carbide during the crushing process by the first ball mill 5, the upper part of the first ball mill 5 is connected to the second gas collection tank 3 through a pipeline, and one side is connected to the first filter press 6 through a pipeline. In order to facilitate the recovery of solvents and reduce the consumption of water resources, the lower end of the first filter press 6 is connected to the purification tank 4 through a pipeline, and a conveyor belt is provided at the lower part. The other end of the conveyor belt is arranged at the feed inlet of the second ball mill 7. In order to further clean the soluble substances that may remain in the slag cake, the second ball mill 7 is connected to the second filter press 8 through a pipeline. The lower part of the second filter press 8 is provided with a discharge conveyor belt, and the lower end is connected to the purification tank 4 through a pipeline.
[0013] It should be noted that the cleaning tank 4 in this example is mainly used to collect and precipitate the filtrate, and the first gas collection tank 2 and the second gas collection tank 3 are common gas collection tanks.
[0014] In order to facilitate the introduction of catalyst and accelerate the reaction process of the waste materials, a catalyst pipeline is connected above the first ball mill 5.
[0015] In order to facilitate the dissolution of the slag cake from the first filter press, a clean water pipe is fixedly connected above the second ball mill 7 .
[0016] It should be noted that, in this embodiment, the acetylene reactor 1, the first ball mill 5, the first filter press 6, the second ball mill 7, and the second filter press 8 are all existing equipment, so their specific structures will not be described in detail herein.
[0017] The working process of this embodiment is as follows:
[0018] Calcium carbide reacts with water in the acetylene reactor 1 to generate acetylene gas and calcium hydroxide slurry. The acetylene gas enters the first gas collection tank 2 through a pipeline for storage. The waste material including the slurry and some unreacted calcium carbide enters the first ball mill 5. The solids carried in the slurry are ground and a catalyst is added at the same time to accelerate the decomposition of the waste material. The generated gas and the gas carried in the slurry are transported to the second gas collection tank 3 for storage through a pipeline. The waste material that is completely ground into a slurry enters the first filter press 6, the filtered water enters the cleaning tank 4, and the filter residue enters the second ball mill 7 via a conveyor belt. At this time, clean water is introduced into the second ball mill 7 to re-slurry the filter residue and completely dissolve the soluble substances in the filter residue. The re-slurry enters the second filter press 8, and the filtered water enters the cleaning tank 4. The clean calcium hydroxide filter cake is sent out via the discharge conveyor belt for unified storage, completing the recovery. The filtered water in the cleaning tank 4 can be reused for acetylene gas preparation in the acetylene reactor 1.
Claims
1. An acetylene waste recovery device, comprising an acetylene reactor (1), characterized in that: The upper part of the acetylene reactor (1) is connected to the first gas collection tank (2) through a pipeline, and the lower part of the acetylene reactor (1) is connected to the purification tank (4) and the first ball mill (5) through pipelines respectively. The upper part of the first ball mill (5) is connected to the second gas collection tank (3) through a pipeline, and one side is connected to the first filter press (6) through a pipeline. The lower end of the first filter press (6) is connected to the purification tank (4) through a pipeline, and a conveyor belt is provided at the lower part. The other end of the conveyor belt is provided at the feed inlet position of the second ball mill (7). The second ball mill (7) is connected to the second filter press (8) through a pipeline. The lower part of the second filter press (8) is provided with a discharge conveyor belt, and the lower end is connected to the purification tank (4) through a pipeline.
2. The acetylene waste recovery device according to claim 1, characterized in that: A catalyst pipeline is connected above the first ball mill (5).
3. The acetylene waste recovery device according to claim 1, characterized in that: A clean water pipe is fixedly connected above the second ball mill (7).