Trivalent chromium passivator heating and mixing equipment and mixing method

Abstract

The invention discloses heating and mixing equipment and a mixing method for a trivalent chromium passivating agent, relates to the technical field of mixing equipment, and aims to solve the problems that the materials at different positions receive different heat, so that the temperatures of the materials are different, the materials are heated unevenly, the mixing uniformity is influenced, and the stirring effect is poor due to rotation of a stirring plate. The material is better driven to move through the plate surface, and meanwhile, in the rotating process, through the characteristic that the farther the distance between the empty groove of the stirring plate and the connecting plate is, the smaller the width of the empty groove is, the stirring plate can better drive the material on the outer side when driving the material, so that the material on the outer side close to the inner wall of the mixing tank is better driven; the materials in contact with the inner wall of the mixing tank are guided to the two sides through the convex inclined surfaces at the central positions of the outer sides of the stirring plates, so that the materials which are heated most are driven more effectively, the materials at different positions are driven to different degrees, and the situation that local materials are heated excessively, and the materials are heated unevenly is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of mixing equipment, in particular to a trivalent chromium passivating agent heating mixing equipment and a mixing method. Background Art

[0002] At present, trivalent chromium passivation agent is a chemical reagent used for metal surface treatment. It mainly contains trivalent chromium ions, which are the key components for its passivation effect. In addition, it also includes various additives, such as ligands, film-forming promoters, surfactants, etc. The role of the ligand is to form a stable complex with the trivalent chromium ions, so that the chromium ions can be evenly dispersed in the solution, and play a regulatory role in the film-forming process on the metal surface. The film-forming promoter can accelerate the formation of the passivation film and improve production efficiency. The surfactant helps to improve the wetting performance of the passivation agent on the metal surface and make the quality of the passivation film better. The trivalent chromium passivation agent heating and mixing equipment is a special equipment for heating and mixing the trivalent chromium passivation agent. It is fully mixed at an appropriate temperature to prepare a passivation agent solution with good performance. During the stirring and heating process, the materials at different positions receive different amounts of heat, resulting in temperature differences between the materials, causing uneven heating between the materials and affecting mixing uniformity. Summary of the invention

[0003] To achieve the above purpose, the present invention is implemented by the following technical scheme: a trivalent chromium passivating agent heating and mixing device, comprising: A mixing tank, wherein a feed pipe and a discharge pipe are respectively installed on the upper and lower sides of the mixing tank, a frame is installed at the bottom of the mixing tank, a drive assembly is installed at the center position of the axis of the mixing tank, and an electric heater is installed at the bottom of the mixing tank; A stirring assembly, which is used to drive the bottom material to move to both sides, and the stirring assembly is installed on the outside of the driving assembly; A material guide assembly, which is installed at both ends of the outside of the driving assembly and is located on both sides of the stirring assembly; A pressure relief assembly, which is used to control the pressure inside the mixing tank, and the pressure relief assembly is symmetrically installed on the top of the mixing tank with the feed pipe as the axis; In which, the stirring assembly includes a connecting block, which is evenly installed on the outside of the driving assembly along the axial direction, and a buckle plate is fixedly installed at one end of the connecting block away from the driving assembly, and a connecting plate is fixedly installed on the outside of the buckle plate, and a stirring plate is fixedly installed on the outside of the connecting plate, and both sides of the stirring plate are inclined surfaces raised at the center position, and a plurality of empty grooves are symmetrically opened on the outside of the stirring plate, and the farther the distance from the connecting plate, the smaller the width of the empty groove is. Through the rotation of the stirring plate, the material is better driven to move through the plate surface. At the same time, during the rotation process, the farther the distance from the connecting plate from the empty groove of the stirring plate, the smaller the width of the empty groove is, so that when the stirring plate drives the material, the material on the outside can be better driven, and the material on the outside close to the inner wall of the mixing tank can be better driven, and the inclined surface raised at the center position of the outer side of the stirring plate can guide the material contacting the inner wall of the mixing tank to both sides, so that the material that is most heated can be driven more effectively, so that the materials at different positions can be driven to different degrees, and the local material can be avoided from being overheated, resulting in uneven heating between the materials.

[0004] Preferably, a scraper plate is fixedly installed at one end of the stirring plate away from the connecting plate, and arc-shaped scrapers are provided on both sides of the scraper plate, and the arc-shaped scrapers of the scraper plate cooperate with the grooves of the rotating wheel. During the rotation, the arc-shaped scrapers of the scraper plate scrape the inner wall of the mixing tank to better drive the outer material. At the same time, the groove of the rotating wheel is located close to the rotation center, providing a buffer accumulation space for the material to avoid the material being stuck in the rotation center, causing the material to block the rotation and causing the rotation to be obstructed. The outer side of the scraper plate is in contact with the inner wall of the mixing tank, and a through hole is provided on the outer side of the connecting block. A connecting rod is fixedly installed at the through hole of the connecting block, and rotating wheels are rotatably installed at both ends of the outer side of the connecting rod. Grooves are evenly provided on the outer side of the rotating wheel, and the rotating wheel is located between the connecting blocks.

[0005] Preferably, the material guiding assembly comprises a hollow cover, which is symmetrically installed on both sides of the inner wall of the mixing tank along the center position of the axis of the mixing tank, and non-opposite surfaces of the hollow cover are provided with hollow grooves, and the inner side of the hollow cover is a conical surface, and the hollow grooves of the hollow cover cooperate with the conical surface to prevent the material entering the inner side of the hollow cover from directly contacting the inner wall of the mixing tank, so that heating is stopped and the material is guided toward the center position at the same time. After the material at the center position of the outer bottom is driven by the stirring assembly, the materials on both sides and the inner side are quickly squeezed into the gap to realize the cyclic stirring of the materials and make the mixing between the materials more uniform. A baffle is fixedly installed on the side of the conical surface of the hollow cover away from the stirring assembly, and the inner wall of the baffle is rotatably installed with the outer side of the driving assembly.

[0006] Preferably, an arc ring is fixedly installed on one side of the conical surface of the hollow cover close to the stirring component, and the bottom of the arc ring cooperates with the conical surface of the hollow cover to form a notch, and a conical block is rotatably installed at the center position of the opposite surface of the baffle, and the outer diameter of the conical block is smaller as it is closer to the baffle, and a spiral plate is fixedly installed on the outer side of the conical block, and the spiral plate cooperates with the arc ring to make the material guided on both sides of the stirring component fall between the spiral plates, and then rotate to cooperate with the inclined surface of the conical block to guide the material into the hollow cover, and cooperate with the heat insulation effect of the empty groove of the hollow cover to reduce the heat received by the material and prevent the material from being overheated in a short time. The plates are evenly installed along the center position of the conical block, and a material blocking plate is fixedly installed on one side of the conical block away from the baffle plate, and the opposite surface of the material blocking plate fits with the outer side of the connecting block. The driving assembly includes a motor, and the motor is fixedly installed at the center position of the outer side of the mixing tank, and a transmission shaft is fixedly installed at the output end of the motor, and bearings are rotatably installed at both ends of the outer side of the transmission shaft, and the transmission shaft is rotatably installed with the inner wall of the mixing tank through the bearings, and a shaft sleeve is fixedly installed at the center position of the outer side of the transmission shaft, and the outer side of the shaft sleeve is fixedly connected to one end of the connecting block, and the outer side of the transmission shaft is fixedly connected to the inner wall of the conical block.

[0007] Preferably, the pressure relief assembly includes a fixed cylinder, which is fixedly installed on the top of the mixing tank, a top cylinder is fixedly installed on the top of the fixed cylinder, a water accumulation ring is fixedly installed on the outside of the top cylinder, a hole plate is fixedly installed on the bottom of the inner wall of the top cylinder, a slide rod is fixedly installed on the inner wall of the hole plate, circular discs are provided at both the upper and lower ends of the slide rod, a slider and a cover disc are slidably installed on the outside of the slide rod, a limit disc is fixedly installed on the outside of the slide rod, the limit disc is located below the hole disc, an elastic sleeve is provided on the top of the outer side of the slide rod, and the elastic sleeve The bottom end is fixedly connected to the top of the cover plate, and the bottom of the cover plate is an inclined surface protruding upward from the center position. Through the sliding adaptation of the slider and the slide rod, when the gas flow rate is too fast, the flow gap is reduced to limit the gas outlet amount, so as to avoid a large amount of gas outlet in a short time when the gas pressure is high, so that the internal temperature drops rapidly and the material heats slowly. The slider is located below the limit plate, and the outer side of the slider is a conical surface with an outer diameter gradually increasing from top to bottom, and the bottom of the outer side of the slider is evenly provided with teeth and grooves, and the diameter of the cover plate is larger than the outer diameter of the top tube.

[0008] A method for heating and mixing a trivalent chromium passivating agent comprises the following steps: S1, heating in the tank, introducing the trivalent chromium passivator raw material into the mixing tank, and heating it at the bottom of the mixing tank through an electric heater, and transferring heat to the raw material through the mixing tank; S2, stirring and mixing, the driving component drives the stirring component and the material guiding component to rotate, and stirs the heated materials in the mixing tank so that the materials are evenly heated and fully contacted and mixed; S3, exhaust pressure relief, during the heating and mixing process, the pressure in the mixing tank is controlled by the pressure relief component, and the pressure in the mixing tank is discharged after the pressure exceeds the safety value; S4, discharging is completed. After the materials in the mixing tank are fully heated and mixed, the materials are discharged from the discharging pipe through the material guiding component and the stirring component.

[0009] The present invention provides a trivalent chromium passivating agent heating and mixing device, which has the following beneficial effects: 1. The trivalent chromium passivator heating and mixing equipment can better drive the material to move through the plate surface by rotating the stirring plate. At the same time, during the rotation process, the farther the empty groove of the stirring plate is from the connecting plate, the smaller the empty groove width is. When the stirring plate drives the material, it can better drive the material on the outside, and the material on the outside close to the inner wall of the mixing tank can be better driven. The material contacting the inner wall of the mixing tank is guided to both sides through the raised inclined surface at the center of the outer side of the stirring plate, so that the material that is heated the most can be driven more effectively, and the materials at different positions can be driven to different degrees, so as to avoid excessive heating of local materials and uneven heating between materials.

[0010] 2. The trivalent chromium passivator heating and mixing equipment cooperates with the arc scraper of the scraper plate and the groove of the rotating wheel. During the rotation process, the arc scraper of the scraper plate scrapes the inner wall of the mixing tank to better drive the outer material. At the same time, the groove of the rotating wheel is located close to the center of rotation, providing a buffer accumulation space for the material to avoid the material being stuck in the center of rotation, causing the material to block the rotation and cause the rotation to be obstructed.

[0011] 3. The trivalent chromium passivator heating and mixing equipment, through the hollow groove of the hollow cover and the conical surface, prevents the material entering the inner side of the hollow cover from directly contacting the inner wall of the mixing tank, stops heating, and guides the material to the center position at the same time. After the material at the center position of the outer bottom is driven by the stirring component, the material on both sides and the material on the inside are quickly squeezed into the gap, realizing the cyclic stirring of the material and making the mixing between the materials more uniform.

[0012] Fourth, the trivalent chromium passivator heating and mixing equipment cooperates with the spiral plate and the arc ring to make the materials guided on both sides of the stirring component fall between the spiral plates, and then cooperate with the inclined surface of the cone block to guide the materials into the hollow cover, which cooperates with the heat insulation effect of the hollow groove of the hollow cover to reduce the heat received by the material and prevent the material from being overheated in a short time.

[0013] 5. The trivalent chromium passivator heating and mixing equipment reduces the flow gap through the sliding adaptation of the slider and the slide rod when the gas flow rate is too fast, so that the gas output is limited, and avoids a large amount of gas output in a short time when the gas pressure is high, which causes the internal temperature to drop rapidly and causes slow heating of the material. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the external structure of a trivalent chromium passivating agent heating and mixing device of the present invention; Figure 2 This is a partial structural dissection diagram of a trivalent chromium passivating agent heating and mixing device of the present invention; Figure 3 It is a dissected diagram of the position structure of the material guide assembly and the mixing tank of the present invention; Figure 4 It is a structural anatomical diagram of the material guide component of the present invention; Figure 5 This is a schematic diagram of the structure of the stirring assembly of the present invention; Figure 6 It is a partial structural schematic diagram of the stirring component of the present invention; Figure 7 It is a side view of the structure of the stirring assembly of the present invention; Figure 8 It is a dissected diagram of the position structure of the mixing tank and the pressure relief assembly of the present invention; Fig. 9 It is a schematic diagram of the structure of the pressure relief assembly of the present invention; Fig.10 It is a structural anatomical diagram of the pressure relief assembly of the present invention; Fig.11 Schematic diagram of the mixing method of the present invention.

[0015] In the figure: 1, frame; 2, mixing tank; 3, pressure relief assembly; 4, stirring assembly; 5, material guide assembly; 6, driving assembly; 7, electric heater; 8, feed pipe; 9, discharge pipe; 31, fixed cylinder; 32, top cylinder; 33, water accumulation ring; 34, elastic sleeve; 35, cover plate; 36, hole plate; 37, slide rod; 38, slide block; 39, limit plate; 41, connecting block; 42, rotating wheel; 43, stirring plate; 44, scraper plate; 45, buckle plate; 46, connecting rod; 47, connecting plate; 51, hollow cover; 52, baffle plate; 53, conical block; 54, spiral plate; 55, baffle plate; 56, arc ring; 61, motor; 62, bearing; 63, transmission shaft; 64, bushing. DETAILED DESCRIPTION

[0016] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

[0017] The first embodiment, as Figure 1 to Figure 2 and Figures 5 to 7 As shown, the present invention provides a technical solution: a trivalent chromium passivating agent heating and mixing device, comprising: A mixing tank 2, wherein a feed pipe 8 and a discharge pipe 9 are respectively installed on the upper and lower sides of the mixing tank 2, a frame 1 is installed at the bottom of the mixing tank 2, a drive assembly 6 is installed at the center of the axis of the mixing tank 2, and an electric heater 7 is installed at the bottom of the mixing tank 2; A stirring assembly 4, which is used to drive the bottom material to move to both sides, and the stirring assembly 4 is installed on the outside of the driving assembly 6; A material guide assembly 5, which is installed at both ends of the outer side of the driving assembly 6, and the material guide assembly 5 is located on both sides of the stirring assembly 4; A pressure relief component 3, which is used to control the pressure inside the mixing tank 2, and the pressure relief component 3 is symmetrically installed on the top of the mixing tank 2 with the feed pipe 8 as the axis; The stirring assembly 4 includes a connecting block 41, which is evenly installed on the outside of the driving assembly 6 along the axial direction. A buckle plate 45 is fixedly installed at one end of the connecting block 41 away from the driving assembly 6. A connecting plate 47 is fixedly installed on the outside of the buckle plate 45. A stirring plate 43 is fixedly installed on the outside of the connecting plate 47. Both sides of the stirring plate 43 are inclined surfaces raised at the center position. During the rotation, the groove of the rotating wheel 42 is used to provide a buffer space for the material close to the center of rotation, so that the material accumulated at the center of rotation cannot block the rotation. At the same time, during the rotation, the stirring plate 43 drives the mixing The movement of the material at the center position inside the mixing tank 2 is achieved by stirring the materials at different levels to different degrees through the empty grooves on the surface of the stirring plate 43, so that when the stirring plate 43 stirs the materials, the width of the empty grooves close to the outside is smaller, so that the materials cannot quickly pass through the empty grooves, so that the materials on the outside are more effectively driven, and the materials on the outside closer to the inner wall of the mixing tank 2 are driven. At the same time, during the stirring process, the convex shape of the center of the outer side of the stirring plate 43 is used to drive the materials on the outside, so that the materials move to both sides and approach the material guide component 5. In addition, a number of empty grooves are symmetrically opened on the outside of the stirring plate 43, and the farther from the connecting plate 47, the smaller the width of the empty grooves.

[0018] A scraper plate 44 is fixedly installed at one end of the stirring plate 43 away from the connecting plate 47, and arc-shaped scrapers are arranged on both sides of the scraper plate 44, and the outer side of the scraper plate 44 is in contact with the inner wall of the mixing tank 2. A through hole is opened on the outer side of the connecting block 41, and the shaft sleeve 64 is fixedly connected to the connecting block 41, so that the shaft sleeve 64 drives the connecting block 41 to rotate along the axis center position of the transmission shaft 63, and the connecting block 41 drives the stirring plate 43 and the scraper plate 44 to rotate along the axis center position of the mixing tank 2 through the buckle plate 45. At the same time, during the rotation process, the arc-shaped scraper of the scraper plate 44 contacts the inner wall of the mixing tank 2, and the material close to the inner wall of the mixing tank 2 is driven to move during the rotation. A connecting rod 46 is fixedly installed at the through hole of the connecting block 41, and both ends of the outer side of the connecting rod 46 are rotatably installed with a rotating wheel 42, and the outer side of the rotating wheel 42 is evenly provided with grooves, and the rotating wheel 42 is located between the connecting blocks 41.

[0019] The second embodiment is based on the first embodiment. Figure 3 to Figure 4 As shown, the material guide assembly 5 includes a hollow cover 51, which is symmetrically installed on both sides of the inner wall of the mixing tank 2 along the center position of the axis of the mixing tank 2, and the non-opposite surfaces of the hollow cover 51 are provided with hollow grooves, and the inner side of the hollow cover 51 is a conical surface. The transmission shaft 63 rotates to drive the conical block 53 to rotate, so that the conical block 53 drives the material blocking plate 55 and the spiral plate 54 to rotate synchronously with the stirring assembly 4, so that the material driven to both sides by the stirring assembly 4 during the stirring process contacts the conical surface on the outer side of the conical block 53, so that the conical block 53 cooperates with the spiral plate 54 and the material blocking plate 55 to continue to drive the material to both sides, so that the material rotates and falls into the conical surface of the hollow cover 51 under the action of its own gravity, and a baffle 52 is fixedly installed on the side of the conical surface of the hollow cover 51 away from the stirring assembly 4, and the inner wall of the baffle 52 is rotatably installed with the outer side of the driving assembly 6.

[0020] An arc ring 56 is fixedly installed on the side of the conical surface of the hollow cover 51 close to the stirring component 4, and the bottom of the arc ring 56 cooperates with the conical surface of the hollow cover 51 to form a notch. A conical block 53 is rotatably installed at the center position of the opposite surface of the baffle 52. The outer diameter of the conical block 53 becomes smaller as it approaches the baffle 52. With the obstruction of the arc ring 56, the material is guided to the center position again by utilizing the notch below. After the stirring component 4 drives the material at the bottom of the outer side to move, the material is moved to the vacant position to cause cyclic stirring between the materials. A spiral plate 54 is fixedly installed on the outer side of the conical block 53, and the spiral plate 54 is evenly installed along the center position of the conical block 53. A material blocking disk 55 is fixedly installed on the side of the conical block 53 away from the baffle 52, and the opposite surface of the material blocking disk 55 fits the outer side of the connecting block 41.

[0021] The driving assembly 6 includes a motor 61, which is fixedly installed at the center position of the outer side of the mixing tank 2, and a transmission shaft 63 is fixedly installed at the output end of the motor 61. Bearings 62 are rotatably installed at both ends of the outer side of the transmission shaft 63. The transmission shaft 63 is rotatably installed with the inner wall of the mixing tank 2 through the bearings 62. A shaft sleeve 64 is fixedly installed at the center position of the outer side of the transmission shaft 63. The transmission shaft 63 is driven to rotate by the motor 61, so that the transmission shaft 63 rotates at the center position of the axis of the mixing tank 2 under the restriction of the bearings 62, and at the same time drives the material guide assembly 5 to rotate, and drives the stirring assembly 4 to run through the connection between the shaft sleeve 64 and the stirring assembly 4, so as to drive the internal material of the mixing tank 2. The outer side of the shaft sleeve 64 is fixedly connected to one end of the connecting block 41, and the outer side of the transmission shaft 63 is fixedly connected to the inner wall of the conical block 53.

[0022] The third embodiment is based on the first and second embodiments. Figures 8 to 11 As shown, the pressure relief assembly 3 includes a fixed cylinder 31, which is fixedly installed on the top of the mixing tank 2. A top cylinder 32 is fixedly installed on the top of the fixed cylinder 31, and a water accumulation ring 33 is fixedly installed on the outer side of the top cylinder 32. Through the elastic force of the elastic sleeve 34, the bottom of the cover plate 35 is pressed against the top of the top cylinder 32 to close the pressure relief path. When the internal pressure gradually increases during the heating process, the pressure pushes the cover plate 35 upward, compressing the elastic sleeve 34 to deform, opening the gap between the cover plate 35 and the top cylinder 32, and opening the pressure relief pipeline. In the process of air pressure being discharged along the gap, the conical surface at the bottom of the cover plate 35 cooperates with the water accumulation ring 33, so that when the gas is discharged, it contacts the external cold air and condenses. The condensed water droplets are conducted to the surroundings through the conical surface and fall into the water accumulation ring 33. A hole plate 36 is fixedly installed at the bottom of the inner wall of the top cylinder 32.

[0023] A slide bar 37 is fixedly installed on the inner wall of the hole plate 36, and discs are set at the upper and lower ends of the slide bar 37. A slider 38 and a cover plate 35 are slidably installed on the outer side of the slide bar 37. A limit plate 39 is fixedly installed on the outer side of the slide bar 37. The limit plate 39 is located below the hole plate 36. An elastic sleeve 34 is sleeved on the top of the outer side of the slide bar 37. The bottom end of the elastic sleeve 34 is fixedly connected to the top of the cover plate 35. The bottom of the cover plate 35 is an inclined surface protruding upward from the center position. The slider 38 is located below the limit plate 39. During the process of gas outlet The gas is conducted upward through the gap between the fixed cylinder 31 and the slider 38, passes through the orifice plate 36 and enters the top cylinder 32. During the gas flow, it impacts the bottom of the slider 38. When the gas flow rate is too fast, the slider 38 is pushed upward, so that the slider 38 moves upward and cooperates with the inclined surface of the fixed cylinder 31 to reduce the flow gap and reduce the derived gas flow. The outer side of the slider 38 is a conical surface with an outer diameter gradually increasing from top to bottom, and the bottom of the outer side of the slider 38 is evenly provided with tooth grooves. The diameter of the cover plate 35 is larger than the outer diameter of the top cylinder 32.

[0024] A method for heating and mixing a trivalent chromium passivating agent comprises the following steps: S1, heating in the tank, introducing the trivalent chromium passivating agent raw material into the mixing tank 2, and heating it at the bottom of the mixing tank 2 by the electric heater 7, and transferring the heat to the raw material through the mixing tank 2; S2, stirring and mixing, the driving component 6 drives the stirring component 4 and the material guiding component 5 to rotate, and stirs the heated materials in the mixing tank 2, so that the materials are evenly heated and fully contacted and mixed; S3, exhaust steam pressure relief, during the heating and mixing process, the pressure in the mixing tank 2 is controlled by the pressure relief component 3, and the pressure in the mixing tank 2 is discharged after the pressure exceeds the safety value; S4, discharging is completed. After the materials in the mixing tank 2 are fully heated and mixed, the materials are discharged from the discharging pipe 9 through the material guiding component 5 and the stirring component 4.

[0025] When in use, a worker introduces the trivalent chromium passivator raw material into the mixing tank 2 through the feed pipe 8, and then starts the electric heater 7 and the drive component 6. The bottom of the mixing tank 2 is heated by the electric heater 7, and the heat is transferred to the internal material through the mixing tank 2. At the same time, the drive component 6 drives the material guide component 5 and the stirring component 4 to rotate, and the materials in the heating process are stirred and mixed. During the heating and mixing process, the air pressure in the mixing tank 2 is controlled by the pressure relief component 3, and the pressure is discharged when the pressure is too high.

[0026] In the driving assembly 6, the transmission shaft 63 is driven to rotate by the motor 61, so that the transmission shaft 63 rotates at the center position of the axis of the mixing tank 2 under the limitation of the bearing 62, and at the same time drives the material guide assembly 5 to rotate, and drives the stirring assembly 4 to run through the connection with the stirring assembly 4 through the shaft sleeve 64, thereby driving the internal material of the mixing tank 2.

[0027] In the stirring assembly 4, the connecting block 41 is fixedly connected to the shaft sleeve 64, so that the shaft sleeve 64 drives the connecting block 41 to rotate along the center position of the axis of the transmission shaft 63, and the connecting block 41 drives the stirring plate 43 and the scraping plate 44 to rotate along the center position of the axis of the mixing tank 2 through the buckle plate 45. At the same time, during the rotation process, the arc-shaped scraper of the scraping plate 44 contacts the inner wall of the mixing tank 2, and the material close to the inner wall of the mixing tank 2 is driven to move during the rotation process. At the same time, during the rotation process, the groove of the rotating wheel 42 provides a buffer space for the material close to the center position of the rotation through the groove, so that the accumulated material on the rotating wheel 42 can be moved. The material at the center position cannot block the rotation. At the same time, during the rotation, the stirring plate 43 drives the material at the center position inside the mixing tank 2 to move. Through the empty grooves on the surface of the stirring plate 43, materials at different levels are stirred to different degrees. When the stirring plate 43 stirs the material, the width of the empty grooves close to the outside is smaller, so that the material cannot quickly pass through the empty grooves, so that the material on the outside is driven more effectively, and the material on the outside that is closer to the inner wall of the mixing tank 2 is driven. At the same time, during the stirring process, through the raised shape of the outer center of the stirring plate 43, while driving the outer material, the material moves to both sides and approaches the material guide component 5.

[0028] In the material guide assembly 5, the transmission shaft 63 rotates to drive the conical block 53 to rotate, so that the conical block 53 drives the material blocking plate 55 and the spiral plate 54 to rotate synchronously with the stirring assembly 4, so that the materials driven to both sides by the stirring assembly 4 during the stirring process contact the conical surface on the outside of the conical block 53, so that the conical block 53 cooperates with the spiral plate 54 and the material blocking plate 55 to continue to drive the materials to both sides, so that the materials rotate and fall into the conical surface of the hollow cover 51 under the action of their own gravity, and cooperate with the blocking of the arc ring 56 to guide the materials to the center position again by utilizing the gap below, and after the stirring assembly 4 drives the materials at the bottom of the outside to move, the materials are moved to the vacant position, so that the materials are circulated and stirred.

[0029] When the pressure in the mixing tank 2 is controlled by the pressure relief component 3, the elastic force of the elastic sleeve 34 is used to press the bottom of the cover plate 35 against the top of the top tube 32 to close the pressure relief path. When the internal pressure gradually increases during the heating process, the pressure pushes the cover plate 35 upward, presses the elastic sleeve 34 to deform, opens the gap between the cover plate 35 and the top tube 32, opens the pressure relief pipeline, and in the process of the air pressure being discharged along the gap, the conical surface at the bottom of the cover plate 35 cooperates with the water accumulation ring 33, so that when the gas is discharged, it contacts the external cold air and condenses. The condensed water droplets are conducted around through the conical surface and fall into the water accumulation ring 33. At the same time, in the process of gas outlet, the gas is conducted upward through the gap between the fixed tube 31 and the slider 38, passes through the orifice plate 36 and enters the inside of the top tube 32. In the process of gas flow, it impacts the bottom of the slider 38. When the gas flow rate is too fast, the slider 38 is pushed upward, so that the slider 38 moves upward and cooperates with the inclined surface of the fixed tube 31 to reduce the flow gap and reduce the gas flow rate.

[0030] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention are implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. A trivalent chromium passivating agent heating and mixing device, characterized in that: include: A mixing tank (2), wherein a feed pipe (8) and a discharge pipe (9) are respectively installed on the upper and lower sides of the mixing tank (2), a frame (1) is installed at the bottom of the mixing tank (2), a drive assembly (6) is installed at the center position of the axis of the mixing tank (2), and an electric heater (7) is installed at the bottom of the mixing tank (2); A stirring assembly (4), the stirring assembly (4) being used to drive the bottom material to move to both sides, the stirring assembly (4) being installed on the outside of the driving assembly (6); A material guide assembly (5), the material guide assembly (5) being mounted at two ends of the outside of the driving assembly (6), and the material guide assembly (5) being located on both sides of the stirring assembly (4); A pressure relief component (3), the pressure relief component (3) is used to control the pressure inside the mixing tank (2), and the pressure relief component (3) is symmetrically installed on the top of the mixing tank (2) with the feed pipe (8) as the axis; The stirring assembly (4) comprises a connecting block (41), the connecting block (41) being evenly mounted on the outside of the driving assembly (6) in the axial direction, a buckle plate (45) being fixedly mounted on one end of the connecting block (41) away from the driving assembly (6), a connecting plate (47) being fixedly mounted on the outside of the buckle plate (45), a stirring plate (43) being fixedly mounted on the outside of the connecting plate (47), both sides of the stirring plate (43) being inclined surfaces protruding at the center, and a plurality of empty grooves being symmetrically formed on the outside of the stirring plate (43), and the width of the empty grooves being smaller as the distance from the connecting plate (47) increases.

2. A trivalent chromium passivating agent heating and mixing device according to claim 1, characterized in that: A scraper plate (44) is fixedly mounted on one end of the stirring plate (43) away from the connecting plate (47), arc-shaped scrapers are arranged on both sides of the scraper plate (44), and the outer side of the scraper plate (44) is in contact with the inner wall of the mixing tank (2), and a through hole is provided on the outer side of the connecting block (41).

3. A trivalent chromium passivating agent heating and mixing device according to claim 2, characterized in that: A connecting rod (46) is fixedly mounted at the through hole of the connecting block (41), and rotating wheels (42) are rotatably mounted at both ends of the outer side of the connecting rod (46), and grooves are evenly formed on the outer side of the rotating wheel (42), and the rotating wheel (42) is located between the connecting blocks (41).

4. A trivalent chromium passivating agent heating and mixing device according to claim 1, characterized in that: The material guiding assembly (5) comprises a hollow cover (51), the hollow cover (51) being symmetrically mounted on two sides of the inner wall of the mixing tank (2) along the central position of the axis of the mixing tank (2), and the non-opposite surfaces of the hollow cover (51) are provided with hollow grooves, and the inner side of the hollow cover (51) is a conical surface, and a baffle plate (52) is fixedly mounted on the side of the conical surface of the hollow cover (51) away from the stirring assembly (4), and the inner wall of the baffle plate (52) is rotatably mounted on the outer side of the driving assembly (6).

5. A trivalent chromium passivating agent heating and mixing device according to claim 4, characterized in that: An arc ring (56) is fixedly mounted on one side of the conical surface of the hollow cover (51) close to the stirring assembly (4); the bottom of the arc ring (56) cooperates with the conical surface of the hollow cover (51) to form a notch; a conical surface block (53) is rotatably mounted at the center position of the opposite surface of the baffle plate (52); the outer diameter of the conical surface block (53) decreases as it approaches the baffle plate (52).

6. A trivalent chromium passivating agent heating and mixing device according to claim 5, characterized in that: A spiral plate (54) is fixedly mounted on the outer side of the conical block (53), and the spiral plate (54) is evenly mounted along the center of the conical block (53). A material blocking plate (55) is fixedly mounted on the side of the conical block (53) away from the blocking plate (52), and the opposite surface of the material blocking plate (55) is in contact with the outer side of the connecting block (41).

7. A trivalent chromium passivating agent heating and mixing device according to claim 1, characterized in that: The driving assembly (6) comprises a motor (61), the motor (61) being fixedly mounted at a central position on the outside of the mixing tank (2), and a transmission shaft (63) being fixedly mounted at the output end of the motor (61), bearings (62) being rotatably mounted at both ends of the outside of the transmission shaft (63), the transmission shaft (63) being rotatably mounted on the inner wall of the mixing tank (2) via the bearings (62), a shaft sleeve (64) being fixedly mounted at a central position on the outside of the transmission shaft (63), the outer side of the shaft sleeve (64) being fixedly connected to one end of the connecting block (41), and the outer side of the transmission shaft (63) being fixedly connected to the inner wall of the conical surface block (53).

8. A trivalent chromium passivating agent heating and mixing device according to claim 1, characterized in that: The pressure relief assembly (3) comprises a fixed cylinder (31), the fixed cylinder (31) being fixedly mounted on the top of the mixing tank (2), a top cylinder (32) being fixedly mounted on the top of the fixed cylinder (31), a water accumulation ring (33) being fixedly mounted on the outside of the top cylinder (32), and a perforated disc (36) being fixedly mounted on the bottom of the inner wall of the top cylinder (32).

9. A trivalent chromium passivating agent heating and mixing device according to claim 8, characterized in that: A slide bar (37) is fixedly mounted on the inner wall of the hole plate (36). Discs are arranged at the upper and lower ends of the slide bar (37). A slider (38) and a cover plate (35) are slidably mounted on the outer side of the slide bar (37). A limit plate (39) is fixedly mounted on the outer side of the slide bar (37). The limit plate (39) is located below the hole plate (36). An elastic sleeve (34) is sleeved on the top of the outer side of the slide bar (37). The bottom end of the elastic sleeve (34) is fixedly connected to the top of the cover plate (35). The bottom of the cover plate (35) is an inclined surface protruding upward at the center. The slider (38) is located below the limit plate (39). The outer side of the slider (38) is a conical surface with an outer diameter gradually increasing from top to bottom. Tooth grooves are evenly arranged on the bottom of the outer side of the slider (38). The diameter of the cover plate (35) is larger than the outer diameter of the top cylinder (32).

10. A method for heating and mixing a trivalent chromium passivator according to any one of claims 1 to 9, characterized in that: It consists of the following steps: S1, heating in the tank, introducing the trivalent chromium passivating agent raw material into the mixing tank (2), and heating it at the bottom of the mixing tank (2) through the electric heater (7), and transferring heat to the raw material through the mixing tank (2); S2, stirring and mixing, driving the stirring component (4) and the material guiding component (5) to rotate by the driving component (6), stirring the heated material in the mixing tank (2), so that the materials are evenly heated and fully contacted and mixed; S3, exhausting steam and releasing pressure. During the heating and mixing process, the pressure in the mixing tank (2) is controlled by the pressure relief component (3). When the pressure exceeds a safety value, the pressure in the mixing tank (2) is released; S4, discharging is completed. After the materials in the mixing tank (2) are fully heated and mixed, the materials are discharged from the discharging pipe (9) through the material guiding component (5) and the stirring component (4).

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