CN216584821U - Rubber accelerator TMTD production system - Google Patents
Rubber accelerator TMTD production system Download PDFInfo
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- CN216584821U CN216584821U CN202220020826.4U CN202220020826U CN216584821U CN 216584821 U CN216584821 U CN 216584821U CN 202220020826 U CN202220020826 U CN 202220020826U CN 216584821 U CN216584821 U CN 216584821U
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- lime
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- rubber accelerator
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Abstract
The utility model discloses a rubber accelerator TMTD production system, which comprises a condensation kettle, wherein the top of the condensation kettle is respectively connected with a first metering tank, a second metering tank and a beating pool through pipelines, the bottom of the condensation kettle is connected with a filtering device through a pipeline, and a discharge port of the filtering device is connected with an oxidation kettle; the utility model discloses a lime replaces liquid caustic soda to carry out carbon disulfide and dimethylamine reaction, the condensation liquid that obtains is close to colorless, the physics and the chemical property of lime have decided the reaction and can go on, will react the PH value simultaneously and stabilize at 12, the stability of later stage oxidation reaction back product quality and output has greatly been promoted, and the lime price is far less than the price of liquid caustic soda, make manufacturing cost reduce by a wide margin, and excessive lime can not influence product output and quality yet, the operation elasticity space is big.
Description
Technical Field
The utility model relates to a rubber accelerator production facility technical field especially relates to a rubber accelerator TMTD production system.
Background
In the existing TMTD production, dimethylamine aqueous solution and carbon disulfide are reacted in the presence of liquid alkali in a condensation process to generate sodium dimethyl dithiocarbamate, and the sodium dimethyl dithiocarbamate generates TMTD and sodium chloride or sodium sulfate under the action of chlorine or hydrogen peroxide, sulfuric acid and the like. In the reaction process, because the liquid alkali is strong alkali, the pH value is too high or too low due to slight deviation of the liquid alkali in the reaction process, the consumption is increased due to incomplete reaction of dimethylamine and carbon disulfide, or the product is unqualified due to high pH value of the reaction liquid, great inconvenience is brought to manufacturing, and great fluctuation is caused to the product quality.
So the utility model provides a new scheme solves this problem.
SUMMERY OF THE UTILITY MODEL
In view of the above situation, in order to overcome the defects of the prior art, the present invention aims to provide a production system for a rubber accelerator TMTD.
The technical scheme for solving the problem is as follows: the utility model provides a rubber accelerator TMTD production system, includes the condensation kettle, the top of condensation kettle is connected with first metering tank, second metering tank and beating pond respectively through the pipeline, there is filter equipment bottom of condensation kettle through the pipe connection, oxidation kettle is connected to filter equipment's discharge gate.
Preferably, the filtering device comprises a filtering tank and a filtering tank, the filtering tank is communicated with the condensation kettle, a discharge port of the filtering tank is connected with a feed port of the filtering tank through a pipeline, and a discharge port of the filtering tank is connected with the oxidation kettle through a pipeline.
Preferably, a first pump body is further arranged between the filter tank and the oxidation kettle.
Preferably, a stirrer and a second pump body are arranged in the beating tank.
Preferably, the first metering tank and the second metering tank are respectively communicated with a dimethylamine feeding pipe and a carbon disulfide feeding pipe.
Preferably, the bottom of the condensation kettle is provided with a cooling water inlet pipeline, and the side wall of the condensation kettle is provided with a cooling water outlet pipeline.
Preferably, the pipelines are provided with valves.
Through the technical scheme, the beneficial effects of the utility model are that: the utility model discloses a lime replaces liquid caustic soda to carry out carbon disulfide and dimethylamine reaction, the condensation liquid that obtains is close to colorless, the physics and the chemical property of lime have decided the reaction and can go on, will react the PH value simultaneously and stabilize at 12, the stability of later stage oxidation reaction back product quality and output has greatly been promoted, and the lime price is far less than the price of liquid caustic soda, make manufacturing cost reduce by a wide margin, and excessive lime can not influence product output and quality yet, the operation elasticity space is big.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
In the figure: 1-a condensation kettle, 2-a first metering tank, 3-a second metering tank, 4-a beating tank, 5-a filter tank, 6-a filter tank, 7-a first pump body, 41-a second pump body and 42-a stirrer.
Detailed Description
The foregoing and other technical matters, features and effects of the present invention will be apparent from the following detailed description of the embodiments, which is to be read in connection with the accompanying fig. 1. The structural contents mentioned in the following embodiments are all referred to the attached drawings of the specification.
Exemplary embodiments of the present invention will be described below with reference to the accompanying drawings.
As shown in fig. 1, a rubber accelerator TMTD production system comprises a condensation kettle 1, the top of the condensation kettle 1 is connected with a first metering tank 2, a second metering tank 3 and a beating pool 4 through pipes, respectively, the first metering tank 2 and the second metering tank 3 are communicated with a dimethylamine feeding pipe and a carbon disulfide feeding pipe, respectively;
the bottom of the condensation kettle 1 is connected with a filtering device through a pipeline, and a discharge port of the filtering device is connected with an oxidation kettle; when the device is specifically arranged, the filtering device comprises a filtering tank 5 and a filtering tank 6, the filtering tank 5 is communicated with the condensation kettle 1, a discharge port of the filtering tank 5 is connected with a feed port of the filtering tank 6 through a pipeline, and a discharge port of the filtering tank 6 is connected with the oxidation kettle through a pipeline; a first pump body 7 is also arranged between the filter tank 6 and the oxidation kettle, and the liquid filtered by the filter device is pumped into the oxidation kettle through the first pump body 7;
a stirrer 42 and a second pump body 41 are arranged in the beating pool 4 and communicated with a water drainage pipe, and water and lime are mixed in the beating pool 4 and stirred by the stirrer 42 for beating; a cooling water inlet pipeline is arranged at the bottom of the condensation kettle 1, and a cooling water outlet pipeline is arranged on the side wall of the condensation kettle 1; the pipelines are provided with valves.
The utility model discloses a concrete work flow does: pulping metered lime in a pulping tank 4, pumping the weighed lime into a condensation kettle 1 through a second pump body 41, pumping preset amounts of dimethylamine and carbon disulfide raw materials into a first metering tank 2 and a second metering tank 3 respectively, firstly, pumping the dimethylamine into the condensation kettle 1 according to process requirements, then slowly dropwise adding carbon disulfide, and simultaneously, starting cooling water for circulating and cooling to keep the reaction temperature below 30 ℃; after the dropwise addition is finished, continuously stirring and reacting for 1 hour, and testing the pH value to be maintained at 12; and then starting a filtering device, performing vacuum filtration through a filtering tank 6, pumping the filtrate into an oxidation kettle, introducing chlorine gas into the oxidation kettle or adding hydrogen peroxide and hydrochloric acid to perform oxidation reaction, centrifuging, washing with water, and drying to obtain the rubber accelerator TMTD product.
The utility model discloses select lime to replace liquid caustic soda, because lime is the material of slightly soluble water, belong to well alkali moreover, react with lime again after carbon disulfide and the dimethylamine reaction in condensation process, generate the calcium of thiram, the solubility of lime depends on the reaction degree of carbon disulfide and dimethylamine. When the carbon disulfide, the dimethylamine and the lime fully react to generate the calcium fumarate, the lime is added, and the solubility of the lime cannot be increased any more because the carbon disulfide and the dimethylamine do not further react. The pH was maintained at a constant value of 12. The excess lime is removed by filtration means and the calcium fumarate is converted to TMTD and calcium chloride by introducing chlorine or adding hydrogen peroxide and hydrochloric acid. During the reaction, since the pH value is constant at 12, the product yield and quality are maintained at a stable level as long as lime is sufficiently added.
To sum up, the utility model discloses a lime replaces liquid caustic soda to carry out carbon disulfide and dimethylamine reaction, and the condensation liquid that obtains is close to colorless, and the physics and the chemical property of lime have decided the reaction to go on, will react the pH value simultaneously and stabilize at 12, have greatly promoted the stability of later stage oxidation reaction back product quality and output to the lime price is far less than the price of liquid caustic soda, makes manufacturing cost reduce by a wide margin, and excessive lime can not influence product output and quality yet, and the operation elasticity space is big.
The above description is provided for further details of the present invention with reference to the specific embodiments, which should not be construed as limiting the present invention; to the utility model discloses affiliated and relevant technical field's technical personnel are based on the utility model discloses under the technical scheme thinking prerequisite, the extension of doing and the replacement of operating method, data all should fall within the utility model discloses within the protection scope.
Claims (7)
1. A rubber accelerator TMTD production system, includes the condensation kettle, its characterized in that: the top of condensation kettle is connected with first metering tank, second metering tank and beating pond respectively through the pipeline, the bottom of condensation kettle has filter equipment through the pipe connection, oxidation cauldron is connected to filter equipment's discharge gate.
2. The rubber accelerator TMTD production system of claim 1, wherein: the filter device comprises a filter tank and a filter tank, the filter tank is communicated with the condensation kettle, a discharge port of the filter tank is connected with a feed port of the filter tank through a pipeline, and a discharge port of the filter tank is connected with the oxidation kettle through a pipeline.
3. The rubber accelerator TMTD production system of claim 2, wherein: a first pump body is also arranged between the filter tank and the oxidation kettle.
4. The rubber accelerator TMTD production system of claim 1, wherein: and a stirrer and a second pump body are arranged in the pulping tank.
5. The rubber accelerator TMTD production system of claim 1, wherein: and the first metering tank and the second metering tank are respectively communicated with a dimethylamine feeding pipe and a carbon disulfide feeding pipe.
6. The rubber accelerator TMTD production system of claim 1, wherein: the bottom of the condensation kettle is provided with a cooling water inlet pipeline, and the side wall of the condensation kettle is provided with a cooling water outlet pipeline.
7. A rubber accelerator TMTD production system according to any one of claims 1 to 6, characterized in that: and valves are arranged on the pipelines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220020826.4U CN216584821U (en) | 2022-01-06 | 2022-01-06 | Rubber accelerator TMTD production system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220020826.4U CN216584821U (en) | 2022-01-06 | 2022-01-06 | Rubber accelerator TMTD production system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216584821U true CN216584821U (en) | 2022-05-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220020826.4U Active CN216584821U (en) | 2022-01-06 | 2022-01-06 | Rubber accelerator TMTD production system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216584821U (en) |
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2022
- 2022-01-06 CN CN202220020826.4U patent/CN216584821U/en active Active
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