Super-retarding concrete processing production line

Abstract

The utility model provides a super-retarded concrete processing production line which comprises an aggregate batcher, a flat belt conveyor, an inclined belt conveyor, a stirring building and a powder bin connected with the stirring building through a spiral conveyor. The stirring building comprises a building frame, an aggregate temporary storage hopper arranged on the building frame, a powder scale arranged on the building frame, a stirring machine arranged on the building frame and a powder screening machine arranged between the powder scale and the stirring machine, and the powder screening machine comprises a base with a material passing chamber, a screening seat arranged on the base and a vibration motor arranged on the screening seat; the screening seat is provided with a screening cavity, a screening net is obliquely arranged in the screening cavity and divides the screening cavity into a caking material chamber and a discharging chamber, and a caking material outlet communicated with the caking material chamber is formed in the bottom face of the screening seat. According to the super-retarded concrete processing production line, the powder screening machine and the powder crusher are arranged, powder is screened firstly and then crushed, and the processing quality of concrete can be improved.

Description

Technical Field

[0001] This utility model relates to the technical field of concrete processing, and in particular to a production line for ultra-retarded concrete processing. Background Technology

[0002] Super-retarded concrete is a special type of concrete with high volume stability and fluidity, widely used in building structures and civil engineering. Super-retarded concrete exhibits excellent durability, impermeability, and crack resistance, and can improve the overall strength and stability of concrete structures.

[0003] Chinese patent application CN103302747A discloses a control system for a concrete mixing plant, including a material storage system, a conveying system, a metering system, a mixing system, and a control system. The material storage system includes powder silos and aggregate silos. The aggregate silos can simultaneously store multiple aggregates (coarse aggregate, fine aggregate, yellow sand, etc.), while the powder silos are used to store cement, fly ash, etc. The conveying system includes flat belt conveyors, inclined belt conveyors, and screw conveyors, used to convey powder and aggregates. The metering system includes aggregate scales, cement scales, fly ash scales, water scales, admixture scales, etc., primarily achieving gravity metering through load cells and level gauges.

[0004] When the concrete mixing plant is working, the raw materials in the powder and aggregate bins are transported to the metering system for quantitative weighing via the conveying system. Then, the quantitatively weighed concrete raw materials enter the mixing system, where they are mixed and stirred.

[0005] The existing technical solutions mentioned above have the following drawbacks: When the control system of the concrete mixing plant is working, the powder in the powder silo enters the powder scale through the conveyor. After the powder is weighed quantitatively by the powder scale, it directly enters the mixer. Since the powder enters the mixer directly without being screened, if the powder clumps, it will reduce the quality of the concrete. Utility Model Content

[0006] The present invention aims to address the aforementioned shortcomings in the existing technology by providing an ultra-slow-setting concrete processing production line, which solves the problem of reduced concrete quality in the existing technology.

[0007] The above-mentioned utility model objective is achieved through the following technical solution: a super-retarded concrete processing production line, comprising an aggregate batching device, a flat belt conveyor disposed below the aggregate batching device, an inclined belt conveyor connected to the flat belt conveyor, a mixing tower connected to the inclined belt conveyor, and a powder silo connected to the mixing tower via a screw conveyor. The mixing tower includes a frame, an aggregate temporary storage hopper disposed on the frame with its inlet located below the outlet of the inclined belt conveyor, a powder scale disposed on the frame with its inlet located below the screw conveyor, and a... A mixer located below a powder scale and a powder screening machine positioned between the powder scale and the mixer are included. The powder screening machine comprises a base having a feeding chamber communicating with the inner cavity of the mixer, a screening seat positioned on the base and inserted into the feeding chamber at its bottom, and a vibrating motor positioned on the outer wall of the screening seat. The screening seat has a screening cavity with an opening on its top surface. A screening screen is inclinedly arranged inside the screening cavity. The screening screen divides the screening cavity into an agglomerated material chamber located above the screening screen and a discharge chamber located below the screening screen. An agglomerated material outlet communicating with the agglomerated material chamber is provided on the bottom surface of the screening seat.

[0008] The present invention is further configured such that: multiple shock-absorbing seats are provided on both sides of the sieve seat opposite to each other, and a damping shock absorber is provided between the bottom surface of each shock-absorbing seat and the top surface of the base.

[0009] The present invention is further configured such that: a fabric feeding mechanism is provided on the base, the fabric feeding mechanism includes a fabric frame with a hopper hole on its top surface, a guide rack on the top surface of the fabric frame, and a fabric hopper slidably disposed on the guide rack; a loading cavity and a valve hole are sequentially provided on the top surface of the fabric hopper; a hopper side cavity is provided on the bottom surface of the fabric hopper; a rack through hole for the guide rack to pass through is provided on the outer side wall of the fabric hopper; a fabric feeding motor is provided on the top surface of the fabric hopper; a drive bevel gear is coaxially disposed on the output shaft of the fabric feeding motor after it extends into the hopper side cavity; a transmission shaft is rotatably disposed in the hopper side cavity; a connecting bevel gear meshing with the drive bevel gear is coaxially disposed on the transmission shaft; and a connecting spur gear meshing with the guide rack is coaxially disposed on the transmission shaft.

[0010] The present invention is further configured such that: a top groove is provided on the inner top wall of the side cavity of the hopper, and a top bearing fitted on the output shaft of the fabric motor is embedded in the top groove.

[0011] The present invention is further configured such that: a side groove is provided on the inner wall of the side cavity of the chute, and a side bearing fitted on both ends of the transmission shaft is embedded in the side groove.

[0012] The present invention is further configured as follows: a material feeding control valve is provided in the valve mounting hole, the material feeding control valve includes a valve body that is inserted into the valve mounting hole, a rotating hole and a through-shaft hole are sequentially opened downward at the center of the top surface of the valve body, a plurality of equidistant material feeding holes are circumferentially distributed outside the rotating hole on the top surface of the valve body, a motor mounting cylinder is provided on the bottom surface of the valve body, a motor mounting groove communicating with the through-shaft hole is opened on the bottom surface of the motor mounting cylinder, a rotary motor is provided in the motor mounting groove, the output shaft of the rotary motor is coaxially connected to a rotating shaft after passing through the through-shaft hole, a rotary valve disc is coaxially provided on the top of the rotating shaft, and a plurality of upper material feeding holes that can be aligned with the lower material feeding holes are opened on the top surface of the rotary valve disc.

[0013] The present invention is further configured such that: a valve plate is fixedly connected to the bottom of the outer side wall of the valve body, and the valve plate is screwed to the bottom surface of the fabric hopper.

[0014] The present invention is further configured such that: a powder crusher is provided on the top surface of the mixer, located directly below the outlet of the agglomerated material; the powder crusher includes a casing; a crushing connecting plate connected to the top surface of the mixer is provided at the bottom of the outer wall of the casing; a feeding chamber and a crushing chamber are sequentially formed downwards on the top surface of the casing; the feeding chamber is aligned with the outlet of the agglomerated material; the crushing chamber communicates with the inner cavity of the mixer; a main outlet shaft hole and a secondary outlet shaft hole are provided on the outer wall of the casing; and a main crushing roller is rotatably arranged inside the crushing chamber. The main crushing roller has a main stabilizing roller shaft coaxially mounted at both ends. One of the main stabilizing roller shafts passes through the main output shaft hole and is coaxially connected to a main gear and a driven pulley. The secondary crushing roller has a secondary stabilizing roller shaft coaxially mounted at both ends. One of the secondary stabilizing roller shafts passes through the secondary output shaft hole and is coaxially connected to a driven gear that meshes with the main gear. A crushing motor is mounted on the top surface of the crushing connecting plate. A main pulley is coaxially mounted on the output shaft of the crushing motor. A transmission belt is mounted between the main pulley and the driven pulley.

[0015] The present invention is further configured such that: a main groove communicating with the main output shaft hole is provided on the inner wall of the crushing chamber, and a main bearing fitted on the main stabilizing roller shaft is embedded in the main groove; a secondary groove communicating with the secondary output shaft hole is provided on the inner wall of the crushing chamber, and a secondary bearing fitted on the secondary stabilizing roller shaft is embedded in the secondary groove.

[0016] The present invention is further configured as follows: the floor frame includes multiple ladder frames, a primary platform with the top of the multiple ladder frames, a primary diagonal brace inclined between the side wall of the ladder frame and the bottom surface of the primary platform, a column on the top surface of the primary platform, a secondary platform on the top of the column, a secondary diagonal brace inclined between the side wall of the column and the bottom surface of the secondary platform, a powder scale on the top surface of the secondary platform, the powder scale passing through the secondary platform, an aggregate storage hopper on the top surface of the secondary platform, the aggregate storage hopper passing through the secondary platform, and a mixer on the top surface of the primary platform, the mixer passing through the primary platform.

[0017] In summary, the beneficial technical effects of this utility model are as follows: This ultra-retarded concrete processing production line, by setting up a powder screening machine and a powder crusher, achieves the screening and crushing of powder first, which is conducive to improving the processing quality of concrete. Attached Figure Description

[0018] Figure 1 This is a top view of the super-retarded concrete processing production line in this utility model;

[0019] Figure 2 This is a front view structural diagram of the super-retarded concrete processing production line in this utility model;

[0020] Figure 3 This is a schematic diagram of the mixing tower in this utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the powder screening machine and the powder crusher in this utility model;

[0022] Figure 5 This is a structural schematic diagram of the base and the sieve seat in this utility model;

[0023] Figure 6 This is a cross-sectional view of the base and the sieve seat in this utility model;

[0024] Figure 7 This is a cross-sectional view of the fabric chute in this utility model;

[0025] Figure 8 yes Figure 7 Enlarged view of point A in the middle;

[0026] Figure 9 yes Figure 7 Enlarged view of point B in the middle;

[0027] Figure 10 This is a cross-sectional view of the powder crusher in this utility model.

[0028] In the attached diagrams: 1. Aggregate batching device; 2. Flat belt conveyor; 3. Inclined belt conveyor; 4. Powder silo; 5. Screw conveyor; 6. Mixing tower; 7. Ladder frame; 8. Primary platform; 9. Primary diagonal brace; 10. Column; 11. Secondary platform; 12. Secondary diagonal brace; 13. Powder scale; 14. Aggregate temporary storage hopper; 15. Mixer; 16. Aggregate pipe; 17. Powder screening machine; 18. Base; 19. Feeding chamber; 20. Screening machine connecting plate; 21. Screening base. 22. Screening chamber; 23. Support frame; 24. Screening mesh; 25. Lumping material chamber; 251. Lumping material outlet; 26. Feeding chamber; 27. Vibration damping seat; 28. Damping shock absorber; 29. ​​Vibration motor; 30. Fabric feeding mechanism; 31. Fabric feeding legs; 32. Fabric feeding platform; 33. Hopper hole; 34. Fabric feeding diagonal brace; 35. Guide rack; 36. Loading plate; 37. Fabric feeding hopper; 38. Hopper side cavity; 39. Rack perforation; 40. Fabric feeding motor; 41. Drive 42. Moving bevel gear; 43. Top groove; 44. Top bearing; 45. Drive shaft; 46. Connecting bevel gear; 47. Connecting spur gear; 48. Side groove; 49. Side bearing; 50. Loading chamber; 51. Valve mounting hole; 52. Discharge control valve; 53. Valve body; 54. Valve plate; 55. Rotating hole; 56. Through shaft hole; 57. Lower material passage hole; 58. Motor mounting cylinder; 59. Motor mounting slot; 60. Rotary motor; 61. Rotary shaft; 62. Rotary valve disc; 63. Upper passage 63. Material feed hole; 64. Powder crusher; 65. Machine casing; 66. Crushing connecting plate; 67. Feed chamber; 68. Crushing chamber; 69. Main trough; 70. Passive trough; 71. Main discharge shaft hole; 72. Passive discharge shaft hole; 73. Main crushing roller; 74. Passive crushing roller; 75. Main stabilizing roller shaft; 76. Main bearing; 77. Main gear; 78. Passive pulley; 79. Passive stabilizing roller shaft; 80. Passive bearing; 81. Crushing motor; 82. Main pulley; 83. Drive belt. Detailed Implementation

[0029] To make the technical means, creative features, objectives and effects of this utility model clearer and easier to understand, the present utility model will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0030] like Figure 1 and 2 As shown, this utility model proposes a super slow-setting concrete processing production line, including an aggregate batching device 1, a flat belt conveyor 2, an inclined belt conveyor 3, a powder silo 4, a screw conveyor 5, and a mixing tower 6.

[0031] like Figure 2 As shown, the aggregate batching device 1 is an existing aggregate weighing and batching equipment. Its main function is to continuously and uniformly feed aggregates to the flat belt conveyor 2. The aggregate batching device 1 can batch fine aggregates (sand) and coarse aggregates (crushed stone).

[0032] like Figure 2 As shown, the flat belt conveyor 2 is fixedly installed at the bottom of the aggregate batching device 1, and the flat belt conveyor is located directly below the discharge port of the aggregate batching device 1. The aggregate that has been weighed and batched in the aggregate batching device 1 will fall onto the flat belt conveyor 2.

[0033] like Figure 2 As shown, one end of the inclined belt conveyor 3 is connected to the flat belt conveyor 2, and the other end is connected to the mixing plant 6. The flat belt conveyor 2 sends the aggregate to the inclined belt conveyor 3, and then the inclined belt conveyor 3 sends the aggregate into the mixing plant 6.

[0034] like Figure 2 As shown, the powder silo 4 is an existing powder batching equipment, whose main function is to continuously and evenly feed powder (cement, mineral powder, fly ash) to the screw conveyor 5.

[0035] like Figure 2 As shown, one end of the screw conveyor 5 is connected to the discharge port at the bottom of the powder silo 4, and the other end is connected to the mixing tower 6. The cement, mineral powder and fly ash in the powder silo 4 are sent into the mixing tower 6 through the screw conveyor 5.

[0036] like Figure 2 and 3 As shown, the mixing tower 6 is used to mix and stir the aggregates, powders, additives, water, etc. conveyed in. The mixing tower 6 includes a tower frame, a powder scale 13, an aggregate temporary storage hopper 14, a mixer 15, a powder screening machine 17, and a powder crusher 63.

[0037] like Figure 3 As shown, the floor frame includes a ladder frame 7, a primary platform 8, a primary diagonal brace 9, a column 10, a secondary platform 11, and a secondary diagonal brace 12.

[0038] The ladder frame 7 is fixedly installed on the factory ground. There are four ladder frames 7 in total. The four ladder frames 7 are distributed in a rectangular shape. A primary platform 8 is fixedly installed on the top of the four ladder frames 7. The primary diagonal brace 9 is inclined between the side wall of the ladder frame 7 and the bottom surface of the primary platform 8. The primary diagonal brace 9 is used to improve the connection strength between the ladder frame 7 and the primary platform 8.

[0039] The columns 10 are fixedly installed on the top surface of the primary platform 8. There are four columns 10, which are arranged in a rectangular shape. The secondary platform 11 is fixedly installed on the top of the four columns 10. The secondary diagonal brace 12 is inclined between the side wall of the column 10 and the bottom surface of the secondary platform 11. The secondary diagonal brace 12 is used to improve the connection strength between the column 10 and the secondary platform 11.

[0040] like Figure 3As shown, the powder scale 13 is fixedly installed on the top surface of the secondary platform 11. The powder scale 13 is installed on the secondary platform 11. The powder scale 13 is a powder weighing device. The powder scale 13 is used to weigh cement, mineral powder and fly ash. The inlet of the powder scale 13 is located below the outlet of the screw conveyor 5. Cement, mineral powder and fly ash are fed into the powder scale 13 through the screw conveyor 5 for quantitative weighing.

[0041] like Figure 3 As shown, the aggregate storage hopper 14 is fixedly installed on the top surface of the secondary platform 11. The aggregate storage hopper 14 passes through the secondary platform 11. The inlet of the top of the aggregate storage hopper 14 is located below the outlet of the inclined belt conveyor 3. The aggregate storage hopper 14 is used to temporarily store the fine aggregate (sand) and coarse aggregate (crushed stone) conveyed by the inclined belt conveyor 3.

[0042] like Figure 3 As shown, the mixer 15 is fixedly installed on the top surface of the primary platform 8, and the mixer 15 passes through the primary platform 8. An aggregate pipe 16, aligned with the outlet of the aggregate storage hopper 14, is fixedly connected to the top surface of the mixer 15, and the aggregate pipe 16 communicates with the inner cavity of the mixer 15. A powder inlet and a crushing inlet are provided on the top surface of the mixer 15, and both the powder inlet and the crushing inlet communicate with the inner cavity of the mixer 15.

[0043] like Figure 4 As shown, the powder screening machine 17 is installed on the top surface of the mixer 15. The powder screening machine 17 includes a base 18, a screening seat 21, and a material distribution mechanism 30.

[0044] like Figure 4 and 6 As shown, a feeding chamber 19 is provided on the top surface of the base 18. The cross-section of the feeding chamber 19 is rectangular, and the feeding chamber 19 is connected to the inner cavity of the mixer 15 through a powder inlet. A sieve connecting plate 20 is fixedly connected to the bottom of the outer wall of the base 18, which abuts against the top surface of the mixer 15. The sieve connecting plate 20 is screwed to the top surface of the mixer 15.

[0045] like Figure 5 and 6 As shown, a screening base 21 is mounted on a base 18, with its bottom inserted into a material passage chamber 19. The screening base 21 has a screening cavity 22 with an opening on its top surface. A support frame 23, shaped like a U, is inclinedly mounted on the cavity wall of the screening cavity 22. A screening mesh 24 is fixedly mounted on the support frame 23. Since the support frame 23 is inclined, the screening mesh 24 is also inclined, dividing the screening cavity 22 into an agglomerated material chamber 25 and a discharge chamber 26. The agglomerated material chamber 25 is located above the screening mesh 24, and the discharge chamber 26 is located below the screening mesh 24. An agglomerated material outlet 251 is provided on the bottom surface of the screening base 21, and the agglomerated material outlet 251 communicates with the agglomerated material chamber 25.

[0046] like Figure 5 As shown, a pair of damping seats 27 are fixedly connected to the two opposite side walls of the screening base 21. A damping damper 28 is provided between the bottom surface of each damping seat 27 and the top surface of the base 18. The damping damper 28 is an existing vibration damping device. The function of the damping damper 28 is to reduce the vibration amplitude and reduce the ability of the structure to transmit oscillations. A vibration motor 29 is fixedly installed on the two opposite side walls of the screening base 21. The vibration motor 29 is used to drive the screening base 21 to vibrate.

[0047] When the powder screening machine 17 is working, after the powder enters the screening chamber 22, the unagglomerated powder passes through the screening screen 24 and then passes through the feeding chamber 26 and the feeding chamber 19 in sequence until it enters the inner cavity of the mixing chamber. The agglomerated powder will remain above the screening screen 24 and flow along the inclined screening screen 24 to the agglomerated material outlet 251.

[0048] like Figure 4 As shown, the material feeding mechanism 30 is mounted on the base 18 and is located below the powder scale 13. The material feeding mechanism 30 is used to receive the powder weighed by the powder scale 13 and to evenly feed the powder onto the sieve 24.

[0049] like Figure 4 As shown, the fabric feeding mechanism 30 includes a fabric frame, a guide rack 35, and a fabric hopper 37.

[0050] like Figure 4 As shown, the fabric support frame includes fabric legs 31, a fabric platform 32, and fabric braces 34. The fabric legs 31 are fixedly installed on the top surface of the base 18. There are four fabric legs 31 arranged in a rectangular pattern. The fabric platform 32 is fixedly installed on the top surface of the four fabric legs 31. A rectangular through-hole 33 is provided on the top surface of the fabric platform 32. The fabric braces 34 are located between the side walls of the fabric legs 31 and the bottom surface of the fabric platform 32, and are used to enhance the connection strength between the fabric legs 31 and the fabric platform 32.

[0051] like Figure 4 As shown, there are two guide racks 35, which are symmetrically arranged on the top surface of the fabric platform 32. On the opposite side walls of the guide racks 35, there are mounting plates 36, which are screwed to the top surface of the fabric platform 32.

[0052] like Figure 7 and 8As shown, the fabric hopper 37 is slidably disposed above the screening seat 21. The fabric hopper 37 passes through the hopper hole 33. Two hopper side cavities 38 are symmetrically opened on the bottom surface of the fabric hopper 37. A rack through hole 39 is provided through the outer side wall of the fabric hopper 37. The rack through hole 39 is connected to the hopper side cavity 38. The guide rack 35 passes through the rack through hole 39.

[0053] like Figure 7 and 8 As shown, a fabric hopper 37 has a fabric motor 40 fixedly mounted on its top surface. The output shaft of the fabric motor 40 extends into the side cavity 38 of the hopper. A drive bevel gear 41 is coaxially mounted on the output shaft of the fabric motor 40 after it extends into the side cavity 38. A top groove 42 is formed on the inner top wall of the side cavity 38, and a top bearing 43 fitted onto the output shaft of the fabric motor 40 is embedded in the top groove 42.

[0054] like Figure 7 and 8 As shown, a drive shaft 44 is rotatably mounted inside the side cavity 38 of the chute. A connecting bevel gear 45, which meshes with the drive bevel gear 41, is coaxially mounted on the drive shaft 44 via a key. A connecting spur gear 46, which meshes with the guide rack 35, is also coaxially mounted on the drive shaft 44. Two side grooves 47 are symmetrically formed on the inner side wall of the side cavity 38, and side bearings 48, which are fitted into the side grooves 47, are fitted into the side grooves 47.

[0055] like Figure 7 and 9 As shown, the top surface of the fabric hopper 37 is provided with a loading chamber 49 and a valve hole 50 in sequence. The loading chamber 49 is used to store the powder weighed by the powder scale 13, and the valve hole is provided with a discharge control valve 51 for controlling its opening and closing.

[0056] like Figure 7 and 9 As shown, the feeding control valve 51 includes a valve body 52, which is cylindrical and is inserted into a valve mounting hole 50. A valve mounting plate 53 is fixedly connected to the bottom of the outer side wall of the valve body 52, and the valve mounting plate 53 is screwed to the bottom surface of the fabric hopper 37. A rotating hole 54 and a through-shaft hole 55 are sequentially opened downward from the center of the top surface of the valve body 52. ​​Both the rotating hole 54 and the through-shaft hole 55 are circular holes. Multiple feed holes 56 are opened through the top surface of the valve body 52, and the multiple feed holes 56 are equidistantly distributed circumferentially outside the rotating hole 54.

[0057] like Figure 7 and 9As shown, a motor mounting cylinder 57 is fixedly connected to the bottom surface of the valve body 52. ​​A motor mounting groove 58 communicating with the through-shaft hole 55 is opened on the bottom surface of the motor mounting cylinder 57. A rotary motor 59 is installed in the motor mounting groove 58. The side wall screws of the rotary motor 59 are connected to the motor mounting cylinder 57. The output shaft of the rotary motor 59 passes through the through-shaft hole 55 and is coaxially connected to a rotary shaft 60. The rotary shaft 60 is rotatably engaged with the rotating hole 54. A rotary valve disc 61 is coaxially installed on the top of the rotary shaft 60. Multiple upper feed holes 62 that can be aligned with the lower feed hole 56 are opened on the top surface of the rotary valve disc 61.

[0058] When the feeding control valve 51 is opened, the rotary motor 59 drives the rotary shaft 60 and the rotary valve disc 61 to rotate until the upper feed hole 62 and the lower feed hole 56 are aligned. At this time, the powder in the loading chamber 49 runs out of the feeding hopper 37 through the upper feed hole 62 and the lower feed hole 56 in sequence.

[0059] When the material feeding control valve 51 is closed, the rotary motor 59 drives the rotary shaft 60 and the rotary valve disc 61 to rotate until the upper material passage 62 and the lower material passage 56 are completely misaligned. At this time, the powder in the loading chamber 49 is restricted from running out of the material feeding hopper 37.

[0060] When the fabric feeding mechanism 30 is working, the powder weighed by the powder scale 13 will fall into the loading chamber 49 of the fabric feeding hopper 37. Then the discharge control valve 51 will open, and the fabric feeding motor 40 will drive the drive bevel gear 41 to rotate. Since the connecting bevel gear 45 meshes with the drive bevel gear 41, the connecting bevel gear 45 will rotate accordingly, which will drive the transmission shaft 44 to rotate. The rotation of the transmission shaft 44 will drive the connecting spur gear 46 to rotate. Since the connecting spur gear 46 meshes with the guide rack 35, the fabric feeding hopper 37 will make horizontal reciprocating linear motion above the screen base, so that the powder can be evenly fed onto the screen 24.

[0061] like Figure 4 and 10 As shown, the powder crusher 63 is located on the top surface of the mixer 15 and directly below the agglomerated material outlet 251. The powder crusher 63 is used to crush agglomerated powder.

[0062] like Figure 4 and 10As shown, the powder crusher 63 includes a housing 64. A crushing connecting plate 65 is fixedly connected to the bottom of the outer wall of the housing 64, and the crushing connecting plate 65 is screwed to the top surface of the mixer 15. A feed chamber 66 and a crushing chamber 67 are sequentially formed downwards on the top surface of the housing 64. The feed chamber 66 is aligned with the agglomerated material outlet 251. The crushing chamber 67 is connected to the inner cavity of the mixer 15 through a crushing inlet. A pair of main grooves 68 and a pair of secondary grooves 69 are symmetrically formed on the inner wall of the crushing chamber 67. A main outlet shaft hole 70 communicating with the main grooves 68 is formed on the outer wall of the housing 64, and a secondary outlet shaft hole 71 communicating with the secondary grooves 69 is formed on the outer wall of the housing 64.

[0063] like Figure 4 and 10 As shown, a main crushing roller 72 and a secondary crushing roller 73 are rotatably arranged inside the crushing chamber 67.

[0064] like Figure 4 and 10 As shown, both ends of the main crushing roller 72 are coaxially provided with main stabilizing roller shafts 74. Each main groove 68 is fitted with a main bearing 75 mounted on the main stabilizing roller shaft 74. One of the main stabilizing roller shafts 74 passes through the main output shaft hole 70 and is coaxially connected to the main gear 76 and the driven pulley 77. The driven pulley 77 is located on the side of the main gear 76 away from the main crushing roller 72.

[0065] like Figure 4 and 10 As shown, a follower roller shaft 78 is coaxially provided at both ends of the crushing roller 73. Each follower groove 69 is fitted with a follower bearing 79 that is mounted on the follower roller shaft 78. One of the follower roller shafts 78 passes through the follower outlet shaft hole 71 and is coaxially connected to a follower gear 80. The follower gear 80 meshes with the main gear 76.

[0066] like Figure 4 and 10 As shown, a crushing motor 81 is fixedly installed on the top surface of the crushing connection plate 65. A main pulley 82 is coaxially arranged on the output shaft of the crushing motor 81. A transmission belt 83 is arranged between the main pulley 82 and the driven pulley 77, and the main pulley 82, the driven pulley 77 and the transmission belt 83 form a belt drive connection.

[0067] This ultra-slow-setting concrete processing production line, by setting up a powder screening machine 17 and a powder crusher 63, achieves powder screening before crushing, which is beneficial to improving the processing quality of concrete.

[0068] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A super-retarded concrete processing production line, comprising an aggregate batching device (1), a flat belt conveyor (2) disposed below the aggregate batching device (1), an inclined belt conveyor (3) connected to the flat belt conveyor (2), a mixing tower (6) connected to the inclined belt conveyor (3), and a powder silo (4) connected to the mixing tower (6) via a screw conveyor (5), characterized in that: The mixing tower (6) includes a tower frame, an aggregate storage hopper (14) mounted on the tower frame with its inlet located below the outlet of the inclined belt conveyor (3), a powder scale (13) mounted on the tower frame with its inlet located below the screw conveyor (5), a mixer (15) mounted on the tower frame and located below the powder scale (13), and a powder screening machine (17) mounted between the powder scale (13) and the mixer (15). The powder screening machine (17) includes a base (18) having a feed chamber (19) communicating with the inner cavity of the mixer (15), and a feed hopper (19) mounted on the base (18). A screening seat (21) is inserted into the bottom of the feeding chamber (19), and a vibrating motor (29) is set on the outer wall of the screening seat (21). The screening seat (21) has a screening cavity (22) with an opening on the top surface. A screening screen (24) is inclinedly arranged in the screening cavity (22). The screening screen (24) divides the screening cavity (22) into an agglomerated material chamber (25) located above the screening screen (24) and a feeding chamber (26) located below the screening screen (24). An agglomerated material outlet (251) communicating with the agglomerated material chamber (25) is opened on the bottom surface of the screening seat (21).

2. The ultra-retarded concrete processing production line according to claim 1, characterized in that: Multiple shock absorbers (27) are provided on the two opposite side walls of the sieve seat (21), and a damping shock absorber (28) is provided between the bottom surface of each shock absorber (27) and the top surface of the base (18).

3. The ultra-retarded concrete processing production line according to claim 1, characterized in that: The base (18) is provided with a fabric feeding mechanism (30), which includes a fabric frame with a hopper hole (33) on its top surface, a guide rack (35) on the top surface of the fabric frame, and a fabric hopper (37) slidably disposed on the guide rack (35). The top surface of the fabric hopper (37) is provided with a loading cavity (49) and a valve hole (50) in sequence from top to bottom. The bottom surface of the fabric hopper (37) is provided with a hopper side cavity (38). The outer side wall of the fabric hopper (37) is provided with a guide rack. (35) Through the rack through the hole (39), a fabric motor (40) is provided on the top surface of the fabric hopper (37). The output shaft of the fabric motor (40) extends into the side cavity (38) of the hopper and is coaxially provided with a drive bevel gear (41). A transmission shaft (44) is rotatably provided in the side cavity (38). A connecting bevel gear (45) that meshes with the drive bevel gear (41) is coaxially provided on the transmission shaft (44). A connecting spur gear (46) that meshes with the guide rack (35) is coaxially provided on the transmission shaft (44).

4. The ultra-retarded concrete processing production line according to claim 3, characterized in that: A top groove (42) is provided on the inner top wall of the side cavity (38) of the chute, and a top bearing (43) fitted on the output shaft of the fabric motor (40) is embedded in the top groove (42).

5. The ultra-retarded concrete processing production line according to claim 3, characterized in that: A side groove (47) is provided on the inner wall of the side cavity (38) of the chute, and a side bearing (48) fitted into the side groove (47) is provided on both ends of the drive shaft (44).

6. The ultra-retarded concrete processing production line according to claim 3, characterized in that: A discharge control valve (51) is provided in the valve mounting hole (50). The discharge control valve (51) includes a valve body (52) that is inserted into the valve mounting hole (50). A rotating hole (54) and a through hole (55) are sequentially opened downward from the center of the top surface of the valve body (52). A plurality of equidistant discharge holes (56) are circumferentially distributed outside the rotating hole (54) on the top surface of the valve body (52). A motor mounting cylinder (57) is provided on the bottom surface of the valve body (52). The bottom surface of the machine mounting cylinder (57) is provided with a motor mounting groove (58) that communicates with the through shaft hole (55). A rotary motor (59) is provided in the motor mounting groove (58). The output shaft of the rotary motor (59) passes through the through shaft hole (55) and is coaxially connected to a rotary shaft (60). A rotary valve disc (61) is coaxially provided on the top of the rotary shaft (60). A plurality of upper material passage holes (62) that can be aligned with the lower material passage hole (56) are provided on the top surface of the rotary valve disc (61).

7. The ultra-retarded concrete processing production line according to claim 6, characterized in that: A valve plate (53) is fixedly connected to the bottom of the outer side wall of the valve body (52), and the valve plate (53) is screwed to the bottom surface of the fabric hopper (37).

8. The ultra-retarded concrete processing production line according to claim 1, characterized in that: A powder crusher (63) is provided on the top surface of the mixer (15) and located directly below the agglomerated material outlet (251). The powder crusher (63) includes a casing (64). A crushing connecting plate (65) connected to the top surface of the mixer (15) is provided at the bottom of the outer wall of the casing (64). A feed chamber (66) and a crushing chamber (67) are sequentially opened downwards on the top surface of the casing (64). The feed chamber (66) is aligned with the agglomerated material outlet (251). The crushing chamber (67) is connected to the inner cavity of the mixer (15). A main shaft outlet hole (70) and a secondary shaft outlet hole (71) are opened on the outer wall of the casing (64). A main crushing roller (72) and a secondary crushing roller are rotatably arranged in the crushing chamber (67). (73) Both ends of the main crushing roller (72) are coaxially provided with main stabilizing roller shafts (74). One of the main stabilizing roller shafts (74) passes through the main output shaft hole (70) and is coaxially connected to the main gear (76) and the driven pulley (77). Both ends of the driven crushing roller (73) are coaxially provided with driven stabilizing roller shafts (78). One of the driven stabilizing roller shafts (78) passes through the driven output shaft hole (71) and is coaxially connected to the driven gear (80) that meshes with the main gear (76). A crushing motor (81) is provided on the top surface of the crushing connecting plate (65). A main pulley (82) is coaxially provided on the output shaft of the crushing motor (81). A transmission belt (83) is provided between the main pulley (82) and the driven pulley (77).

9. A super-retarded concrete processing production line according to claim 8, characterized in that: The inner wall of the crushing chamber (67) is provided with a main groove (68) communicating with the main output shaft hole (70). The main bearing (75) fitted on the main stabilizing roller shaft (74) is embedded in the main groove (68). The inner wall of the crushing chamber (67) is provided with a secondary groove (69) communicating with the secondary output shaft hole (71). The secondary bearing (79) fitted on the secondary stabilizing roller shaft (78) is embedded in the secondary groove (69).

10. A super-retarded concrete processing production line according to claim 1, characterized in that: The floor frame includes multiple ladder frames (7), a primary platform (8) with the top of the multiple ladder frames (7), a primary diagonal brace (9) inclined between the side wall of the ladder frame (7) and the bottom surface of the primary platform (8), a column (10) set on the top surface of the primary platform (8), a secondary platform (11) set on the top of the column (10), and a secondary diagonal brace (12) inclined between the side wall of the column (10) and the bottom surface of the secondary platform (11). The powder scale (13) is set on the top surface of the secondary platform (11) and passes through the secondary platform (11). The aggregate storage hopper (14) is set on the top surface of the secondary platform (11) and passes through the secondary platform (11). The mixer (15) is set on the top surface of the primary platform (8) and passes through the primary platform (8).

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