Impurity removal device for high-purity hydrogen chloride preparation system

Abstract

The utility model provides an impurity removal device for a system for preparing high-purity hydrogen chloride, which comprises an impurity removal tank A, an impurity removal tank B, an impurity removal tank C and a gas delivery pipe, the impurity removal tank A is connected with the impurity removal tank B through the gas delivery pipe, and the impurity removal tank B is connected with the impurity removal tank C through another gas delivery pipe. The output end of the driving motor is connected with the stirring shaft; the air outlets are formed in the tops of the impurity removal tanks, so that the probability that particle impurities are substituted into the air conveying pipe is reduced, and the air conveying pipe is prevented from being blocked; the filtering piece is arranged on the air conveying pipe, particle impurities mixed in airflow can be filtered, the filtering piece can be disassembled and cleaned regularly, and the impurity removal efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to hydrogen chloride production technical field especially relates to the preparation high purity hydrogen chloride system is with the impurity removing device. BACKGROUND

[0002] Hydrogen chloride is a chemical substance, a hydrogen chloride molecule is by a chlorine atom and a hydrogen atom constitute, is colorless irritating smell gas, its aqueous solution is called hydrochloric acid. Hydrogen chloride is mainly used to manufacture dyes, spices, drugs, various sulfides and corrosion inhibitor and other articles.

[0003] The patent number CN206108892U and a kind of preparation high purity hydrogen chloride rectification device, including dehydration tower, silicon tetrachloride tower, dehydrogenation tower and hydrogen chloride tower;Dehydration tower lower part is equipped with hydrogen chloride raw material import, upper part silicon tetrachloride import, tower top gas phase sampling outlet, tower kettle sampling outlet and middle heat removal return port;Silicon tetrachloride tower is equipped with feed port, tower top gas phase sampling outlet, reflux liquid return port, tower kettle sampling outlet and reboiler return.The utility model uses silicon tetrachloride to absorb water in hydrogen chloride raw material, silicon tetrachloride and water reaction production silicon dioxide and hydrogen chloride gas. Through the method, not only water in raw material can be effectively removed, but also hydrogen chloride raw material containing water cannot be removed by rectification method to solve light and heavy impurities.

[0004] The patent number CN221693235U discloses a kind of hydrogen chloride preparation with impurity removing device, it is related to hydrogen chloride production technical field, specifically including water removing device, water removing device includes several equidistantly arranged water removing tank, water removing tank is equipped with gas inlet at the bottom one side of each, and water removing tank is equipped with gas outlet at the top one side of each, first high-pressure pump is mounted at the gas inlet of water removing tank, the outlet of first high-pressure pump is connected with gas inlet, connecting pipe is arranged between adjacent two water removing tanks, the bottom of connecting pipe is connected with the inlet of first high-pressure pump, the top of connecting pipe is connected with gas outlet.The utility model in use, the hydrogen chloride preparation with impurity removing device is continuously water-removing treated to hydrogen chloride by multiple water removing tanks, and the removal efficiency of water vapor in hydrogen chloride gas by the device is improved.

[0005] However, the above-mentioned patent still has the following defects: in patent 1, silicon tetrachloride is used for dehydration, and the boiling point of silicon tetrachloride is relatively low (57.6℃), which requires strict control of condensation conditions, otherwise it is easy to cause product loss or equipment blockage, increasing maintenance cost; in patent 2, anhydrous sodium chloride is used for dehydration, although anhydrous sodium chloride has hygroscopicity, but it will form a solution due to hygroscopic deliquescence, resulting in residual sodium ions or equipment corrosion, and the vent pipe of the device does not have a corresponding mechanism, which can easily lead to the situation that the dried gas replaces the hygroscopic sodium chloride into the pipe, thereby affecting the impurity removal efficiency. UTILITY MODEL CONTENTS

[0006] The utility model provides a preparation high pure hydrogen chloride system with the impurity removing device of reducing economic cost.

[0007] The utility model provides a preparation high pure hydrogen chloride system with the impurity removing device, including impurity removing jar A, impurity removing jar B, impurity removing jar C and gas pipe, impurity removing jar A is connected with impurity removing jar B through gas pipe, impurity removing jar B is connected with impurity removing jar C through another gas pipe, its characterized in that the top of impurity removing jar A, impurity removing jar B and impurity removing jar C all installs drive motor, drive motor output and stirring shaft are connected, the upper portion of stirring shaft is connected fixed plate through bearing, the middle part of stirring shaft is connected long scraper strip through crosspiece, the lower part of stirring shaft is connected short scraper strip through inclined pole, the inside lower side of impurity removing jar A, impurity removing jar B and impurity removing jar C all are provided with guide plate, the guide plate is inverted round platform type, and the bottom of guide plate is connected with discharge pipe.

[0008] The inclination angle of the short scraper strip is consistent with the inclination angle of the inner wall of the guide plate, and the short scraper strip is in contact with the inner wall of the guide plate.

[0009] Each discharge pipe penetrates through the corresponding impurity removing jar and extends to the outside of the corresponding impurity removing jar, and an adjusting valve is arranged on each discharge pipe.

[0010] One side of the top of the impurity removing jar A is provided with an air inlet pipe, and the other side of the top of the impurity removing jar A is provided with a material falling pipe, the air inlet pipe and the material falling pipe penetrate through the top wall of the impurity removing jar A and extend to be connected to the fixed plate.

[0011] A plurality of air holes are arranged on the fixed plate.

[0012] One side of the top of the impurity removing jar C is provided with an air outlet pipe.

[0013] An electromagnetic valve is arranged on the upper part of each gas pipe, and a filter element is detachably connected to the lower part of each gas pipe, a filter plate is arranged in the filter element, and a gas pump is connected to the tail end of the gas pipe beside the filter element.

[0014] The utility model discloses a beneficial effect is: the utility model discloses a preparation high purity hydrogen chloride system is used to remove the device of impurity, through setting the gas outlet in each top of impurity removal tank, make it reduce the probability of the granular impurity into the gas pipe, prevent the blockage of gas pipe, through setting filter piece on the gas pipe, can filter the granular impurity of inclusion in the airflow, and can periodically disassemble and clean, improve the impurity removal efficiency, through the fixed plate in each impurity removal tank body is additionally installed, and the fixed plate is set up the air hole, and the fixed plate is connected on the stirring shaft through the bearing, and is fixed on the inner wall of impurity removal tank all around, make it not rotate with the rotation of stirring shaft, can effectively filter the inclusion impurity in the reflux gas, through setting the guide plate in each impurity removal tank body bottom, and setting corresponding scraper, can accelerate the sodium chloride after water absorption and promptly discharge, improve the discharge efficiency, can inject the brand new sodium chloride to the tank in time, and then improve the water absorption efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the structure schematic diagram of the utility model;

[0016] Figure 2 It is the overhead structure schematic diagram of the utility model;

[0017] Figure 3 It is the local structure schematic diagram of the utility model;

[0018] Figure 4 It is the structure schematic diagram of filter piece of the utility model.

[0019] Sign significance: 1-impurity removal tank A;11-gas inlet pipe;12- blanking pipe;13-discharge pipe;14-regulating valve;15-driving motor;16-stirring shaft;151-fixed plate;17-cross bar;18-long scraping strip;19-short scraping strip;191-inclined rod;111-guide plate;2-impurity removal tank B;3-impurity removal tank C;4-gas pipe;41-solenoid valve;42-filter piece;421-filter plate;43-gas pump;31-gas outlet pipe. DETAILED DESCRIPTION

[0020] Example 1

[0021] The technical scheme of the utility model will be described clearly and completely below in combination with the drawings of the utility model.

[0022] As Figure 1The utility model provides a preparation high purity hydrogen chloride system is with the impurity removal device, including the impurity removal jar A1, the impurity removal jar B2, the impurity removal jar C3 and the gas pipe 4, the impurity removal jar A1 is connected with the impurity removal jar B2 through the gas pipe 4, the impurity removal jar B2 is connected with the impurity removal jar C3 through another gas pipe 4, its characterized in that the top of impurity removal jar A1, the impurity removal jar B2 and the impurity removal jar C3 all install drive motor 15, and drive motor 15 output is connected with stirring shaft 16, and stirring shaft 16 upper portion is connected fixed plate 151 through bearing, and stirring shaft 16 middle part is connected long scraping strip 18 through cross bar 17, and stirring shaft 16 lower part is connected short scraping strip 19 through inclined rod 191, and the lower side of impurity removal jar A1, the impurity removal jar B2 and the impurity removal jar C3 inside all are provided with guide plate 111, and guide plate 111 is inverted round platform type, and guide plate 111 bottom is connected discharge pipe 13.

[0023] The inclination angle of short scraping strip 19 is consistent with the inclination angle of the inner wall of guide plate 111, and short scraping strip 19 is in contact with the inner wall of guide plate 111.

[0024] Each discharge pipe 13 penetrates the corresponding impurity removal jar and extends to the outside of the corresponding impurity removal jar, and an adjusting valve 14 is arranged on each discharge pipe 13.

[0025] An air inlet pipe 11 is arranged on one side of the top of impurity removal jar A1, and a material dropping pipe 12 is arranged on the other side of the top of impurity removal jar A1, and the air inlet pipe 11 and the material dropping pipe 12 penetrate the top wall of impurity removal jar A1 and extend to be connected to the fixed plate 151.

[0026] A plurality of air holes are arranged on the fixed plate 151.

[0027] An air outlet pipe 31 is arranged on one side of the top of impurity removal jar C3.

[0028] An electromagnetic valve 41 is arranged on the upper part of each gas pipe 4, and a filter 42 is detachably connected to the lower part of each gas pipe 4, and the tail end of the gas pipe located beside the filter 42 is connected to an air pump 43.

[0029] Example 2

[0030] In use, this invention works as follows: Anhydrous sodium chloride is injected into the corresponding impurity removal tank through each feed pipe 12. The drive motor 15 is started, which drives the stirring shaft 16 to rotate, thereby driving the crossbar 17, long scraper 18, diagonal bar 191, and short scraper 19 to scrape the inner wall of the tank. Hydrogen chloride gas is introduced into the tank through the air inlet pipe 11. At this time, the hydrogen chloride gas is adsorbed by the impurity removal tank A1 and then enters the impurity removal tank B2 through the gas supply pipe 4. It then enters the impurity removal tank C3 through the gas supply pipe 4 for adsorption and impurity removal, and finally is discharged through the air outlet pipe 31. At this time, the discharge pipe 13 at the bottom of each tank is opened by the regulating valve 14. The sodium chloride after water absorption is discharged through the discharge pipe 13. The feed pipe 12 continues to feed, always ensuring that the anhydrous sodium chloride in the tank is in a fresh state and ensuring the quality of water absorption. The filter element 42 can filter out the particulate matter mixed in the gas after adsorption. The filter element is removed and cleaned periodically.

[0031] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. The various components mentioned in this utility model are common technologies in the existing field. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A device for removing impurities in a system for preparing high-purity hydrogen chloride, comprising a removal tank A, a removal tank B, a removal tank C, and a gas conveying pipe, wherein the removal tank A is connected to the removal tank B through a gas conveying pipe, and the removal tank B is connected to the removal tank C through another gas conveying pipe, characterized in that The top of the impurity removal tank A, the impurity removal tank B and the impurity removal tank C is provided with a driving motor, the output end of the driving motor is connected with the stirring shaft, the upper part of the stirring shaft is connected with the fixed plate through the bearing, the middle part of the stirring shaft is connected with the long scraping strip through the cross bar, the lower part of the stirring shaft is connected with the short scraping strip through the inclined bar, the lower side of the inside of the impurity removal tank A, the impurity removal tank B and the impurity removal tank C is provided with a guide plate, the guide plate is a rounded table type, the bottom of the guide plate is connected with the discharge pipe.

2. The impurity removal device for a system for producing high-purity hydrogen chloride according to claim 1, characterized by The inclination angle of the short scraping strip is consistent with the inclination angle of the inner wall of the guide plate, and the short scraping strip is in contact with the inner wall of the guide plate.

3. The impurity removal device for a system for producing high-purity hydrogen chloride according to claim 1, characterized by Each discharge pipe penetrates through the corresponding impurity removal tank and extends to the outside of the corresponding impurity removal tank, and an adjusting valve is arranged on each discharge pipe.

4. The impurity removal device for a system for producing high-purity hydrogen chloride according to claim 1, characterized by The top of the impurity removal tank A is provided with an air inlet pipe on one side, and a material falling pipe is arranged on the other side, the bottom of the air inlet pipe and the material falling pipe penetrates through the top wall of the impurity removal tank A and extends to the fixed plate, the top of the impurity removal tank B and the impurity removal tank C is also provided with a material falling pipe, and the bottom of each material falling pipe penetrates through the corresponding impurity removal tank and extends to the corresponding fixed plate.

5. The impurity removal device for a system for producing high-purity hydrogen chloride according to claim 1, characterized by A plurality of air holes are arranged on the fixed plate.

6. The impurity removal device for a system for producing high-purity hydrogen chloride according to claim 1, characterized by The top of the impurity removal tank C is provided with an air outlet pipe.

7. The impurity removal device for a system for producing high-purity hydrogen chloride according to claim 1, characterized by An electromagnetic valve is arranged on the upper part of each gas conveying pipe, a filter element is detachably connected to the lower part of each gas conveying pipe, a filter plate is arranged in the filter element, and the tail end of the gas conveying pipe beside the filter element is connected with a gas pump.

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