A highly safe closed filling system for high-purity sulfuric acid reagent

Abstract

The invention relates to the technical field of sulfuric acid filling production, and discloses a high-safety closed filling system for high-purity reagent sulfuric acid, wherein the bracket corner ends of the lifting plate frame are symmetrically provided with arm force support rods, and the bottom ends of the arm force support rods are provided with clamping mechanisms, the telescopic ends of the two groups of filling cylinders are fixedly connected to the guide rail trusses, and the guide rail ends of the guide rail trusses are sequentially penetrated and clamped with multiple groups of impurity removal mechanisms and multiple groups of filling mechanisms along the conveying direction of the conveyor belt. The invention positions the clamps of the filling bottles on the conveyor belt through the clamping mechanisms, and can pre-clean the filling bottles before filling under the pre-negative pressure type and dry impurity removal of the impurity removal mechanism and the synchronous filling of the filling mechanism, so as to avoid the impurities adhering to the filling bottles and the violent reaction with sulfuric acid, which can improve the safety of sulfuric acid filling on the one hand, and can pre-synchronously clean and dry the filling bottles without affecting the circulating filling of sulfuric acid on the other hand.

Description

Technical Field

[0001] The invention relates to the technical field of sulfuric acid filling production, in particular to a closed filling system for high-purity reagent sulfuric acid with high safety. Background Art

[0002] Sulfuric acid is one of the most active binary inorganic strong acids and can react with many metals. High concentrations of sulfuric acid have strong water absorption and can be used as a dehydrating agent to carbonize carbohydrate-containing materials such as wood, paper, cotton and linen fabrics, and biological skins and flesh. When mixed with water, it will also release a large amount of heat energy. It is highly corrosive and oxidizing, so it must be used with caution. It is also an important industrial raw material and can be used to make fertilizers, drugs, explosives, pigments, detergents, batteries, etc. It is also widely used in industries such as petroleum purification, metal smelting, and dyes. It is also often used as a chemical reagent and can be used as a dehydrating agent and sulfonating agent in organic synthesis.

[0003] Due to the high activity of sulfuric acid, when filling it, special attention should be paid to the cleanliness of the inside of the filling bottle to prevent external impurities, sewage and other factors from entering the filling bottle and reacting violently with sulfuric acid. However, the existing filling bottles for sulfuric acid do not undergo an effective impurity removal process before filling sulfuric acid, which easily leads to impurities adhering to the inside of the filling bottle and reacting violently with sulfuric acid. Therefore, those skilled in the art provide a high-safety closed filling system for high-purity reagent sulfuric acid to solve the problems raised in the above background technology. Summary of the invention

[0004] The object of the present invention is to provide a closed filling system for high-purity reagent sulfuric acid with high safety, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a highly safe closed filling system for high-purity reagent sulfuric acid, comprising a closed box, a conveyor belt is provided through the lower half of the box body of the closed box, and a fume purification mechanism is provided on the front side of the box body of the closed box near the inlet and outlet ends of the conveyor belt, two groups of lifting cylinders are symmetrically provided above the box body of the closed box, and the telescopic ends of the two groups of lifting cylinders extend to the interior of the closed box chamber to provide a lifting plate frame, arm force support rods are symmetrically provided at the corner ends of the bracket of the lifting plate frame, and a clamping mechanism is provided at the bottom end of the arm of the arm force support rod, two groups of filling cylinders are symmetrically provided below the bracket of the lifting plate frame, and the telescopic ends of the two groups of filling cylinders are fixedly connected to the guide rail truss, and the guide rail ends of the guide rail truss are sequentially penetrated and engaged with multiple groups of impurity removal mechanisms and multiple groups of filling mechanisms along the conveying direction of the conveyor belt.

[0006] As a further solution of the present invention: the flue gas purification mechanism includes two groups of exhaust ducts installed on the front side of the closed box body and close to the inlet and outlet ends of the conveyor belt, the pipe mouth ends of the two groups of exhaust ducts are provided with exhaust fans, and the two groups of exhaust ducts are connected by a connecting pipe, and two groups of spiral guide plates are symmetrically arranged inside the connecting pipe, and two groups of first adsorption filter plates and two groups of second adsorption filter plates are sequentially arranged between the propeller blades of the two groups of spiral guide plates along the gas flow direction.

[0007] As a further solution of the present invention: the two groups of the first adsorption filter plates and the two groups of the second adsorption filter plates are arranged staggered in forward and reverse directions, and the first adsorption filter plates and the second adsorption filter plates respectively use polyethylene filter screens and activated carbon filter screens.

[0008] As a further solution of the present invention: two sets of lifting sleeves are symmetrically arranged on both sides of the lifting cylinder above the box body of the closed box, and the lifting guide rods fixedly connected to the lifting plate frame are inserted through the inside of the lifting sleeves.

[0009] As a further solution of the present invention: the clamping mechanism includes two groups of positioning plate frames, and two groups of output seats are symmetrically arranged at both ends of the brackets of the two groups of positioning plate frames, and the internal output ends of the two groups of output seats are rotatably connected with transmission screws, the output ends of the two groups of transmission screws are connected to the transmission motor, and two groups of transmission wire sleeves are symmetrically sleeved on the outer sides of the two groups of transmission screws, and two groups of clamping plates are symmetrically arranged at the output ends of the transmission wire sleeves.

[0010] As a further solution of the present invention: the transmission screw is bounded by a center line, and both sides of the center line are provided with positive and negative thread teeth symmetrically arranged with each other, and the transmission screw is symmetrically sleeved with two groups of transmission thread sleeves through the positive and negative thread teeth.

[0011] As a further solution of the present invention: the impurity removal mechanism includes a first guide slide seat engaged in the guide rail truss track, a negative pressure pipe is penetrated inside the first guide slide seat, a first spin-on nut that fits the guide rail truss is screwed on the outside of the rod body of the negative pressure pipe, and the bottom pipe mouth of the negative pressure pipe is connected to the negative pressure suction pipe, a compression spring is sleeved on the top of the pipe of the negative pressure suction pipe, and a sealing cover is sleeved on the outside of the pipe of the negative pressure suction pipe opposite to the bottom of the spring seat of the compression spring, and a drying air pipe is penetrated on one side of the seat body of the sealing cover.

[0012] As a further solution of the present invention: the filling mechanism includes a second guide slide engaged in the guide rail truss track, a filling pipe is penetrated inside the second guide slide, a second screw-on nut that fits the guide rail truss is screwed on the outer side of the rod body of the filling pipe, and the bottom pipe mouth of the filling pipe is connected to the filling valve head.

[0013] As a further solution of the present invention: the number of the multiple groups of impurity removal mechanisms is the same as the number of the multiple groups of filling mechanisms, and the spacing between the multiple groups of impurity removal mechanisms and the multiple groups of filling mechanisms is the same.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] The present invention positions the clamps of the filling bottles on the conveyor belt by means of the clamp mechanism, and can perform pre-impurity removal, dehumidification and cleaning treatments on the filling bottles before filling under the pre-negative pressure type and dry impurity removal of the impurity removal mechanism and the synchronous filling of the filling mechanism, so as to avoid the impurities adhering to the filling bottles and the violent reaction with sulfuric acid. On the one hand, the safety of sulfuric acid filling can be improved, and on the other hand, the filling bottles can be pre-synchronously cleaned and dried without affecting the circulating filling of sulfuric acid, which is more conducive to popularization and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of a closed filling system for high-purity sulfuric acid reagent with high safety;

[0017] Figure 2 A schematic diagram of the internal structure of a closed filling system for high-purity sulfuric acid with high safety;

[0018] Figure 3 It is a schematic diagram of the structure of two groups of cylinders in a closed filling system for high-purity sulfuric acid with high safety;

[0019] Figure 4 It is a structural schematic diagram of a clamping mechanism in a closed filling system for high-purity sulfuric acid reagent with high safety;

[0020] Figure 5 It is a structural schematic diagram of an impurity removal mechanism and a filling mechanism in a closed filling system for a high-purity reagent sulfuric acid with high safety;

[0021] Figure 6 The schematic diagram is a structural diagram of a flue gas purification mechanism in a closed filling system for high-purity sulfuric acid, a highly safe reagent.

[0022] In the figure: 1. Enclosed box; 2. Smoke purification mechanism; 21. Exhaust duct; 22. Exhaust fan; 23. Converging duct; 24. Spiral guide plate; 25. First adsorption filter plate; 26. Second adsorption filter plate; 3. Conveyor belt; 4. Lifting cylinder; 5. Arm support rod; 6. Clamping mechanism; 61. Positioning plate frame; 62. Output seat; 63. Transmission motor; 64. Transmission wire sleeve; 65. Transmission screw rod; 66. Clamping plate; 7. Guide rail truss; 8. impurity removal mechanism; 81. first guide slide; 82. first spin-pressed nut; 83. negative pressure pipeline; 84. compression spring; 85. sealing gland; 86. negative pressure suction pipe; 87. drying air pipe; 9. filling mechanism; 91. second guide slide; 92. second spin-pressed nut; 93. filling pipeline; 94. filling valve head; 10. lifting guide rod; 11. lifting sleeve; 12. lifting plate rack; 13. filling cylinder. DETAILED DESCRIPTION

[0023] See also Figures 1 to 6 In an embodiment of the present invention, a high-safety closed filling system for high-purity reagent sulfuric acid includes a closed box 1, a conveyor belt 3 is provided at the lower half of the box body of the closed box 1, and a fume purification mechanism 2 is provided at the front side of the box body of the closed box 1 near the inlet and outlet ends of the conveyor belt 3. The fume purification mechanism 2 includes two groups of exhaust pipes 21 installed at the front side of the box body of the closed box 1 and near the inlet and outlet ends of the conveyor belt 3. Exhaust fans 22 are provided at the orifice ends of the two groups of exhaust pipes 21, and the two groups of exhaust pipes 21 are connected through a confluence pipe 23. Two groups of spiral guide plates 24 are symmetrically provided inside the confluence pipe 23, and two groups of first adsorption filter plates 25 and two groups of second adsorption filter plates 26 are sequentially provided between the propeller blades of the two groups of spiral guide plates 24 along the gas flow direction. The two groups of first adsorption filter plates 25 and the two groups of second adsorption filter plates 26 are arranged staggered in forward and reverse directions, and the first adsorption filter plates 25 and the second adsorption filter plates 26 respectively use polyethylene filters and activated carbon filters. When the filling system is used to perform closed filling of sulfuric acid, the exhaust fan 22 starts to work synchronously to extract the sulfuric acid gas generated by filling inside the closed box 1, and extract the air containing sulfuric acid into the exhaust pipe 21, and converge into the confluence pipe 23. When the sulfuric acid air circulates in the confluence pipe 23, the spiral guide plate 24 performs spiral guide on the sulfuric acid air, so that the sulfuric acid air is adsorbed and filtered by the first adsorption filter plates 25 and the second adsorption filter plates 26 in a spiral circulation manner, and the sulfuric acid gas in the air is adsorbed and purified, and the adsorbed and purified air is discharged through the opening of the confluence pipe 23.

[0024] Two sets of lifting cylinders 4 are symmetrically arranged above the box body of the closed box 1, and the telescopic ends of the two sets of lifting cylinders 4 extend to the inside of the chamber of the closed box 1 to be provided with a lifting plate frame 12. Two sets of lifting sleeves 11 are symmetrically arranged on both sides of the lifting cylinders 4 above the box body of the closed box 1, and the lifting guide rods 10 fixedly connected to the lifting plate frame 12 are inserted through the inside of the lifting sleeves 11. When the sulfuric acid is cyclically filled, the filling bottles are placed on the conveyor belt 3 in sequence, and the conveyor belt 3 is used to convey the filling bottles cyclically. The bottles are sent to the closed box 1 for filling. The impurity removal and filling of the impurity removal mechanism 8 and the filling mechanism 9 are synchronously performed with pre-cleaning and filling. When the rated number of filled bottles are transported to the bottom of the impurity removal mechanism 8 and the filling mechanism 9, the telescopic end of the lifting cylinder 4 extends out, and under the guidance of the lifting guide rod 10 and the lifting sleeve 11, the lifting plate frame 12 is pushed to move up and down, and the clamping mechanism 6 is moved down to both sides of the bottle mouth of the filling bottle to clamp and fix the filling bottle to improve the stability of sulfuric acid filling.

[0025] The bracket corner ends of the lifting plate frame 12 are symmetrically provided with arm force support rods 5, and the bottom end of the arm of the arm force support rod 5 is provided with a clamping mechanism 6, the clamping mechanism 6 includes two sets of positioning plate frames 61, and the bracket ends of the two sets of positioning plate frames 61 are symmetrically provided with two sets of output seats 62, and the internal output ends of the two sets of output seats 62 are rotatably connected with transmission screws 65, the output ends of the two sets of transmission screws 65 are connected to the transmission motor 63, and the outer sides of the two sets of transmission screws 65 are symmetrically sleeved with two sets of transmission wire sleeves 64, and the output ends of the transmission wire sleeves 64 are symmetrically provided with two sets of clamping The clamping plate 66 and the transmission screw 65 are bounded by the center line, and the two sides of the center line are respectively provided with positive and negative threads symmetrically arranged with each other. The transmission screw 65 is symmetrically sleeved with the two groups of transmission thread sleeves 64 through the positive and negative threads. In the process of clamping and fixing the filling bottle, the transmission motor 63 works to drive the transmission screw 65 to rotate. The rotational force is converted into horizontal thrust through the positive and negative threads symmetrically arranged on the transmission screw 65, which pushes the two groups of transmission thread sleeves 64 to symmetrically move, and synchronously pushes the two groups of clamping clamping plates 66 to clamp and move, and clamp at the bottleneck of the filling bottle.

[0026] Two groups of filling cylinders 13 are symmetrically arranged below the bracket of the lifting plate frame 12, and the telescopic ends of the two groups of filling cylinders 13 are fixedly connected to the guide rail truss 7. The guide rail ends of the guide rail truss 7 are sequentially penetrated and engaged with multiple groups of impurity removal mechanisms 8 and multiple groups of filling mechanisms 9 along the conveying direction of the conveyor belt 3. The number of multiple groups of impurity removal mechanisms 8 is the same as that of multiple groups of filling mechanisms 9, and the spacing between multiple groups of impurity removal mechanisms 8 and multiple groups of filling mechanisms 9 is the same. After the filling bottle clamps are fixed, the telescopic ends of the filling cylinders 13 are extended to push the guide rail truss 7 downward, and the impurity removal mechanisms 8 and the filling mechanisms 9 are probed into the bottle mouths of the filling bottles. While the impurity removal mechanism 8 probes into the bottle mouths, it performs negative pressure and dry adsorption treatment on the inside of the filling bottle to prevent impurities from remaining in the bottle and affecting the normal filling of sulfuric acid. The filling mechanism 9 probes into the bottle mouth after pre-cleaning treatment, and uses the filling and conveying of the filling mechanism 9 to fill sulfuric acid into the bottle.

[0027] The impurity removal mechanism 8 includes a first guide slide 81 engaged in the track of the guide rail truss 7, a negative pressure pipe 83 is provided inside the first guide slide 81, a first screw nut 82 which fits the guide rail truss 7 is screwed on the outside of the rod body of the negative pressure pipe 83, and the bottom pipe opening of the negative pressure pipe 83 is connected to the negative pressure suction pipe 86, a compression spring 84 is sleeved on the top of the pipe of the negative pressure suction pipe 86, and a sealing gland 85 is sleeved on the outside of the pipe of the negative pressure suction pipe 86 just opposite to the bottom of the spring seat of the compression spring 84, and one side of the seat body of the sealing gland 85 is penetrated A drying air pipe 87 is provided. When the impurity removing mechanism 8 probes into the filling bottle, the sealing cover 85 is sealed and covered at the bottle mouth under the elastic pressure of the compression spring 84. Then, the hot air equipment is used to transport the dry and clean hot air into the filling bottle through the drying air pipe 87 to dry the filling bottle. The synchronous negative pressure equipment performs synchronous negative pressure adsorption on the inside of the filling bottle through the combination of the negative pressure suction pipe 86 and the negative pressure pipeline 83, and the impurities in the bottle and the dried hot air are sucked out together with the negative pressure, so that the filling bottle remains clean and dry for filling sulfuric acid.

[0028] The filling mechanism 9 includes a second guide slide 91 engaged in the track of the guide rail truss 7, a filling pipe 93 is provided inside the second guide slide 91, a second spin-on nut 92 which fits the guide rail truss 7 is screwed on the outer side of the rod body of the filling pipe 93, and the bottom pipe mouth of the filling pipe 93 is connected to the filling valve head 94. When the filling mechanism 9 probes into the bottle mouth of the filling bottle, the filling equipment synchronously fills sulfuric acid into the filling bottle through the combination of the filling pipe 93 and the filling valve head 94. The filled sulfuric acid bottle is transported to the outside under the continuous transportation of the conveyor belt 3, and the sealing work is carried out in time.

[0029] The working principle of the present invention is as follows: when the sulfuric acid is cyclically filled, the filling bottles are placed on the conveyor belt 3 in sequence, and the conveyor belt 3 is used to convey the filling bottles to the closed box 1 for filling. When the rated number of filling bottles is conveyed to the bottom of the impurity removal mechanism 8 and the filling mechanism 9, the telescopic end of the lifting cylinder 4 extends out, and under the guidance combination of the lifting guide rod 10 and the lifting sleeve 11, the lifting plate frame 12 is pushed to move up and down, and the clamping mechanism 6 is moved down to both sides of the bottle mouth of the filling bottle to clamp and fix the filling bottle to improve the stability of sulfuric acid filling. Then, in the process of clamping and fixing the filling bottle, the transmission motor 63 works to drive the transmission screw 65 to rotate, and the rotational force is converted into horizontal thrust through the positive and negative threads symmetrically arranged on the transmission screw 65, which push the two groups of transmission thread sleeves 64 to move symmetrically, and synchronously push the two groups of clamping clamps 66 to move, and clamp at the bottleneck of the filling bottle. After the clip is fixed, the telescopic end of the filling cylinder 13 extends out, pushing the guide rail truss 7 downward, and the impurity removal mechanism 8 and the filling mechanism 9 are inserted into the bottle mouth of the filling bottle. When the impurity removal mechanism 8 is inserted into the filling bottle, the sealing gland 85 is sealed and capped at the bottle mouth under the elastic pressure of the compression spring 84, and then the hot air equipment is used to transport the dry and clean hot air into the filling bottle through the drying air pipe 87 to dry the filling bottle. The synchronous negative pressure equipment performs synchronous negative pressure adsorption on the inside of the filling bottle through the combination of the negative pressure suction pipe 86 and the negative pressure pipeline 83, and sucks out the impurities in the bottle and the dried hot air together with the negative pressure, so that the filling bottle is kept in a clean and dry state to fill sulfuric acid. When the filling mechanism 9 is inserted into the bottle mouth of the filling bottle, the filling equipment synchronously fills sulfuric acid into the inside of the filling bottle through the combination of the filling pipeline 93 and the filling valve head 94. The filled sulfuric acid bottle is continuously transported by the conveyor belt 3 and transported to the outside world for timely sealing.

[0030] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A highly safe closed filling system for high-purity sulfuric acid reagent, comprising a closed box (1), characterized in that: A conveyor belt (3) is provided through the lower half of the interior of the closed box (1), and a fume purification mechanism (2) is provided on the front side of the closed box (1) near the inlet and outlet ends of the conveyor belt (3); Two groups of lifting cylinders (4) are symmetrically arranged above the box body of the closed box (1), and the telescopic ends of the two groups of lifting cylinders (4) extend to the inside of the chamber of the closed box (1) to be provided with a lifting plate frame (12), and arm force support rods (5) are symmetrically arranged at the corner ends of the brackets of the lifting plate frame (12), and the bottom end of the arm of the arm force support rod (5) is provided with a clamping mechanism (6); Two groups of filling cylinders (13) are symmetrically arranged below the bracket of the lifting plate frame (12), and the telescopic ends of the two groups of filling cylinders (13) are fixedly connected to the guide rail truss (7), and the guide rail ends of the guide rail truss (7) are sequentially penetrated and engaged with multiple groups of impurity removal mechanisms (8) and multiple groups of filling mechanisms (9) along the conveying direction of the conveyor belt (3); The fume purification mechanism (2) comprises two groups of exhaust pipes (21) installed on the front side of the closed box (1) and close to the inlet and outlet ends of the conveyor belt (3), the two groups of exhaust pipes (21) are both provided with exhaust fans (22) at the pipe mouth ends, and the two groups of exhaust pipes (21) are connected through a connecting pipe (23), two groups of spiral guide plates (24) are symmetrically arranged inside the connecting pipe (23), and two groups of first adsorption filter plates (25) and two groups of second adsorption filter plates (26) are sequentially arranged between the propeller blades of the two groups of spiral guide plates (24) along the gas flow direction; The two groups of the first adsorption filter plates (25) and the two groups of the second adsorption filter plates (26) are arranged in a forward and reverse staggered manner, and the first adsorption filter plates (25) and the second adsorption filter plates (26) respectively use a polyethylene filter screen and an activated carbon filter screen; The impurity removal mechanism (8) comprises a first guide slide (81) engaged in the track of the guide rail truss (7), a negative pressure pipe (83) is provided inside the first guide slide (81), a first screw nut (82) which is in contact with the guide rail truss (7) is screwed on the outside of the rod body of the negative pressure pipe (83), and the bottom pipe mouth of the negative pressure pipe (83) is connected to the negative pressure suction pipe (86), a compression spring (84) is sleeved on the top of the pipe of the negative pressure suction pipe (86), and a sealing cover (85) is sleeved on the outside of the pipe of the negative pressure suction pipe (86) to face the bottom of the spring seat of the compression spring (84), and a drying air pipe (87) is penetrated on one side of the seat body of the sealing cover (85).

2. A highly safe high-purity reagent sulfuric acid closed filling system according to claim 1, characterized in that: Two groups of lifting sleeves (11) are symmetrically arranged on both sides of the lifting cylinder (4) above the box body of the closed box (1), and a lifting guide rod (10) fixedly connected to the lifting plate frame (12) is inserted through the interior of the lifting sleeve (11).

3. A closed filling system for high-purity sulfuric acid as a reagent with high safety according to claim 1, characterized in that: The clamping mechanism (6) comprises two groups of positioning plate frames (61), two groups of output seats (62) are symmetrically arranged at both ends of the brackets of the two groups of positioning plate frames (61), and the internal output ends of the two groups of output seats (62) are rotatably connected with transmission screws (65), the output ends of the two groups of transmission screws (65) are connected to the transmission motor (63), and the outer sides of the two groups of transmission screws (65) are symmetrically sleeved with two groups of transmission thread sleeves (64), and the output ends of the transmission thread sleeves (64) are symmetrically arranged with two groups of clamping plates (66).

4. A highly safe high-purity reagent sulfuric acid closed filling system according to claim 3, characterized in that: The transmission screw rod (65) is bounded by a center line, and positive and negative thread teeth arranged symmetrically with each other are respectively arranged on both sides of the center line. The transmission screw rod (65) is symmetrically sleeved with two groups of transmission thread sleeves (64) through the positive and negative thread teeth.

5. A closed filling system for high-purity sulfuric acid as a reagent with high safety according to claim 1, characterized in that: The filling mechanism (9) comprises a second guide slide (91) engaged in the track of the guide rail truss (7), a filling pipe (93) is provided inside the second guide slide (91), a second screw nut (92) which fits the guide rail truss (7) is screwed on the outer side of the rod body of the filling pipe (93), and the bottom pipe mouth of the filling pipe (93) is connected to the filling valve head (94).

6. A highly safe high-purity reagent sulfuric acid closed filling system according to claim 1, characterized in that: The number of the multiple groups of impurity removal mechanisms (8) is the same as the number of the multiple groups of filling mechanisms (9), and the spacing between the multiple groups of impurity removal mechanisms (8) and the multiple groups of filling mechanisms (9) is the same.

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