An energy-saving cement silo discharge pipe crusher

Abstract

The invention discloses an energy-saving cement silo discharge pipe crusher, which is installed at the cement silo discharge port; it includes a screen plate covering the upper part of the discharge port and a crushing mechanism covering the lower part of the discharge port. The screen plate is evenly provided with a plurality of screen holes for non-hardened cement to pass through, when there are hardened cement blocks in the cement silo discharge, the lower end surface of the screen plate is connected to one end surface of the crushing mechanism; when there are no hardened cement blocks in the cement silo discharge, the screen plate is retracted through an arc groove to open the discharge port, so that the cement material is directly discharged from the cement silo discharge pipe without passing through the crusher, and the crushing mechanism can be stopped at this time. The crushing mechanism is provided with a plurality of power-driven rotating crushing cutter wheels for crushing hardened cement blocks, and the hardened cement blocks that cannot be screened out by the screen plate slide down to the crushing mechanism below under the action of their own weight and are crushed by the crushing mechanism and then discharged from the cement silo. It has the following advantages: the total crushing amount of cement material at the discharge port is reduced, and when there are no hardened cement blocks in the cement silo discharge, the crushing mechanism can be stopped, which can greatly reduce power consumption.

Description

Technical Field

[0001] The invention relates to the technical field of cement industry mechanical equipment, and in particular to an energy-saving cement silo discharge pipe crusher. Background Art

[0002] Cement is a powdery, hydraulic inorganic cementitious material. It becomes a slurry after adding water and stirring. It can harden in the air or better harden in water, and can firmly bond materials such as sand and stone together. It is one of the important building materials. Cement plants generally store the produced cement in cement warehouses. During this process, due to water leakage in the cement warehouse, climate influence, temperature difference between the inside and outside of the warehouse, etc., the cement in the warehouse will have different degrees of cement hardening and cement coagulation. If these agglomerates are not treated, they will be shipped out of the warehouse together with the uncoagulated cement, thereby reducing the quality of cement products.

[0003] In the prior art, a crusher for the discharge port is used to solve the cement agglomeration problem. However, the prior art crusher has shortcomings. First, the existing crushing method is not effective in crushing cement blocks. Second, when the cement silo is discharged, since the cement crusher is installed at the discharge port, the crusher must be turned on all the time and crushes the agglomerated material and the unagglomerated material together, wasting electrical energy. Summary of the invention

[0004] The invention provides an energy-saving cement silo discharge pipe crusher, which overcomes the shortcomings of the prior art described in the background technology.

[0005] The technical solution adopted by the present invention to solve its technical problem is:

[0006] An energy-saving cement silo discharge pipe crusher is installed at the cement silo discharge port; it comprises a sieve plate that can open or cover the upper part of the discharge port and a crushing mechanism that covers the lower part of the discharge port, the lower end surface of the sieve plate is connected to one end surface of the crushing mechanism, the sieve plate is evenly provided with a plurality of sieve holes for non-compacted cement to pass through, the sieve plate covering the discharge port is tilted and the sieve plate surface has an acute angle with the central axis of the cement silo discharge port, the projection area of ​​the sieve plate on the cross section of the cement silo discharge port accounts for two-thirds of the cross-sectional area of ​​the discharge port, the crushing mechanism is provided with a plurality of power-driven rotating crushing cutter wheels for crushing compacted cement blocks on its covering surface, and the compacted cement blocks that cannot be screened out by the sieve plate slide down to the crushing mechanism below under the action of their own weight and are crushed by the crushing mechanism and then discharged from the cement silo.

[0007] In one embodiment: the screen plate includes two string shafts and a plurality of screen bars, the two string shafts are arranged in parallel and at intervals, the plurality of screen bars are connected between the two string shafts and are arranged in parallel and at intervals, one of the string shafts is fixed across two pairs of side walls of the cement silo, an arc groove is respectively provided on the two pairs of side walls of the cement silo, the other string shaft is located below the one string shaft, and the two ends of the other string shaft are respectively slidably connected with the corresponding arc groove so that the screen plate can be flipped around the one string shaft along the guide of the arc groove to open or cover the upper part of the discharge port, and the two ends of the other string shaft can be fixed at any position along the direction of the arc groove by a fixing member.

[0008] In one embodiment: a plurality of first spacing sleeves are sleeved on the two series of shafts, two ends of the screen bar are sleeved on the two series of shafts, and a first spacing sleeve is arranged between two adjacent screen bars.

[0009] In one embodiment, the screen bar and the string axis are arranged perpendicular to each other.

[0010] In one embodiment: the crushing mechanism includes a power drive device and at least one rotating crushing unit connected to the power drive device, and the power drive device drives the rotating crushing unit to rotate and crush the compacted cement blocks. The rotating crushing unit includes a rotating shaft and a plurality of crushing cutter wheels arranged at intervals along the length direction of the rotating shaft.

[0011] In one embodiment, at least two rotating crushing units are included, and the rotating crushing units are arranged in parallel up and down, and at least parts of the crushing cutter wheels on adjacent sides of the two adjacent rotating crushing units are alternately stacked and spaced along the axial direction thereof.

[0012] In one embodiment: the power drive device includes a driving unit and a transmission unit, the output end of the driving unit is connected to one end of the rotating shaft of a rotating crushing unit to output the main force to the crushing mechanism, and the transmission unit is arranged between the rotating shafts of two adjacent rotating crushing units to realize power transmission.

[0013] In one embodiment: the active unit includes a motor, a reducer, and a coupling. The output shaft of the motor is connected to the input end of the reducer. The output end of the reducer is connected to the rotating shaft of the rotating crushing unit through the coupling. The transmission unit is a gear transmission pair.

[0014] In one embodiment: a plurality of fixed crushing teeth are fixedly provided on the bottom wall of the discharge port, and the plurality of fixed crushing teeth and at least a portion of the crushing wheel of the rotating crushing unit near the bottom wall of the discharge port are alternately stacked and spaced apart along the axial direction thereof.

[0015] In one embodiment, a plurality of second spacing sleeves are sleeved on the rotating shaft, and the plurality of second spacing sleeves and a plurality of crushing cutter wheels on the same axis are arranged alternately.

[0016] In one embodiment, the crushing cutter wheels on the same rotating shaft are arranged with a rotational offset of 60 degrees between each other, and the crushing cutter wheel has 8 cutter teeth, and the angle between each cutter tooth is 45 degrees.

[0017] In one embodiment, the cross section of the rotating shaft is a regular hexagon.

[0018] In one embodiment, the cross section of the screen bar is trapezoidal, with the long bottom of the trapezoid facing outward from the discharge port and the short bottom of the trapezoid facing inward from the discharge port.

[0019] Compared with the background technology, this technical solution has the following advantages:

[0020] 1. The present invention provides an energy-saving cement discharge port crusher with a simple structure, reasonable design, convenient use and good crushing effect. The crusher comprises a screen plate covering the upper part of the discharge port and a crushing mechanism covering the lower part of the discharge port. The hardened cement blocks that cannot be screened out by the screen plate slide down to the crushing mechanism below under their own weight and are crushed by the crushing mechanism and then discharged from the cement storage, thereby reducing the crushing amount and reducing the waste of electricity.

[0021] 2. The screen plate is designed to be openable. When there is no agglomerated material, the screen plate can be opened to allow cement to flow out directly from the channel. At this time, the crusher can be stopped, which can further reduce power consumption.

[0022] 3. The cross section of the screen bar is set to be trapezoidal, with the long bottom of the trapezoid facing outwards from the discharge port and the short bottom of the trapezoid facing inwards from the discharge port, which can prevent the hardened cement blocks from getting stuck on the screen plate.

[0023] 4. Installing fixed crushing teeth can reduce the possibility of leakage and breakage of compacted cement blocks at the bottom of the discharge port.

[0024] 5. The crushing wheel is equipped with 8 teeth, and the angle between two teeth is 45 degrees, which prevents the hardened cement blocks from passing through the gap between the teeth without being processed.

[0025] 6. When installing, the adjacent crushing wheels on a single shaft are rotated 60° along the projection direction of the shaft to enhance the crushing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0027] Figure 1 It is a schematic diagram of the top view of the structure of an energy-saving cement silo discharge pipe crusher;

[0028] Figure 2 It is a schematic diagram of the right-side cross-sectional structure of an energy-saving cement silo discharge pipe crusher;

[0029] Figure 3 It is a schematic diagram of the main structure of an energy-saving cement silo discharge pipe crusher;

[0030] Figure 4 It is a schematic diagram of the side structure of the crushing knife of an energy-saving cement silo discharge pipe crusher;

[0031] Figure 5 It is a cross-sectional view of the screen bars of an energy-saving cement silo discharge pipe crusher;

[0032] Figure 6 It is a cross-sectional view of the screen plate of an energy-saving cement silo discharge pipe crusher when it is covering the discharge port;

[0033] Figure 7 It is a cross-sectional view of the screen plate of an energy-saving cement silo discharge pipe crusher in an open state; DETAILED DESCRIPTION

[0034] Please refer to Figures 1 to 3 , an energy-saving cement silo discharge pipe crusher, installed at the discharge port of the cement silo 1; it includes a screen plate 10 that can open or cover the upper part of the discharge port and a crushing mechanism 20 that covers the lower part of the discharge port, the screen plate 10 is evenly provided with a plurality of screen holes for unhardened cement to pass through on its covering surface, the crushing mechanism 20 is provided with a plurality of power-driven rotating crushing cutter wheels 21 for crushing hardened cement blocks on its covering surface, and the hardened cement blocks that cannot be screened out by the screen plate 10 slide down to the crushing mechanism 20 below under their own weight and are crushed by the crushing mechanism 20 and then discharged from the cement silo 1. The lower end surface of the screen plate 10 covering the discharge port is connected to one end surface of the crushing mechanism 20 to ensure that the hardened cement blocks will not flow out of the discharge port through the gap between the screen plate 10 and the crushing mechanism 20 without being crushed.

[0035] The sieve plate 10 includes two string shafts 11 and a plurality of screen bars 12, wherein the two string shafts 11 are arranged in parallel and spaced apart, and the plurality of screen bars 12 are connected between the two string shafts 11 and spaced apart and arranged in parallel. In this embodiment, one of the string shafts is fixed across two pairs of side walls of the cement silo 1, and an arc groove 101 is respectively provided on the two pairs of side walls of the cement silo 1, and the other string shaft is located below the one string shaft, and the two ends of the other string shaft are respectively slidably connected with the corresponding arc groove 101 so that the sieve plate 10 can be turned around the one string shaft along the guide of the arc groove 101 to open or cover the upper part of the discharge port, and the two ends of the other string shaft can be fixed at any position along the direction of the arc groove 101 by a fixing member 13. The fixing member 13 can be a nut, and the other string shaft is fixed in the open position or closed position of the sieve plate 10 by threaded locking with the nut and the end of the other string shaft.

[0036] A plurality of first spacing sleeves 14 are sleeved on the two string shafts 11, and both ends of the screen bar 12 are sleeved on the two string shafts 11, and a first spacing sleeve 14 is arranged between two adjacent screen bars 12. The screen bars 12 and the string shafts 11 are arranged perpendicular to each other, and the first spacing sleeve 14 can ensure that there is a fixed axial spacing distance between two adjacent screen bars 12. By replacing the first spacing sleeves 14 of different lengths, the size of the screen hole of the screen plate 10 can be changed.

[0037] The cross section of the screen bar 12 is trapezoidal, with the long bottom of the trapezoid facing outward from the discharge port and the short bottom of the trapezoid facing inward from the discharge port, which can prevent the hardened cement blocks from getting stuck on the screen holes and can also better guide the hardened cement blocks to the crushing mechanism 20 below.

[0038] The sieve plate 10 covering the discharge port is tilted and the sieve plate surface has an acute angle with the central axis of the discharge port of the cement silo 1. Preferably, the acute angle is set to 45 degrees. When the sieve plate 10 is not needed to screen the plate agglomeration, the fixing member 13 is released, and the other string shaft is turned up and retracted along the direction of the arc groove 101, and the sieve plate 10 is opened to allow cement to pass directly.

[0039] Preferably, the projection area of ​​the sieve plate 10 on the cross section of the cement silo 1 discharge port occupies two-thirds of the cross section area of ​​the discharge port, giving the sieve plate 10 sufficient space to screen out unqualified material blocks.

[0040] The crushing mechanism 20 includes a power drive device 201 and at least one rotating crushing unit 202 connected to the power drive device 201. The power drive device 201 drives the rotating crushing unit 202 to rotate and crush the hardened cement blocks. The rotating crushing unit 202 includes a rotating shaft 22 and a plurality of crushing cutter wheels 21 arranged at intervals along the length direction of the rotating shaft 22. In this embodiment, a plurality of second spacing sleeves 23 are sleeved on the rotating shaft 22. The plurality of second spacing sleeves 23 and the plurality of crushing cutter wheels 21 on the same axis are arranged alternately. The second spacing sleeves 23 can ensure that there is a fixed axial spacing distance between two adjacent crushing cutter wheels 21.

[0041] Preferably, the crushing mechanism 20 includes at least two rotating crushing units 202, which are arranged in parallel up and down, and at least part of the crushing wheels 21 on adjacent sides of the two adjacent rotating crushing units 202 are alternately stacked and spaced along their axial direction to ensure that there is a reasonable gap arrangement between the crushing wheels 21 of each rotating crushing unit 202, and compacted cement blocks will not flow out from the gaps between the rotating crushing units 202 without being crushed.

[0042] In this embodiment, the power drive device 201 includes a driving unit 211 and a transmission unit 221. The output end of the driving unit 211 is connected to one end of the rotating shaft 22 of a rotating crushing unit 202 to output the main force to the crushing mechanism 20. The transmission unit 221 is arranged between the rotating shafts of two adjacent rotating crushing units 202 to realize power transmission. In this embodiment, the driving unit 211 includes a motor 2111, a reducer 2112, and a coupling 2113. The output shaft of the motor 2111 is connected to the input end of the reducer 2112. The output end of the reducer 2112 is connected to the rotating shaft 22 of the rotating crushing unit 202 through the coupling 2113. The transmission unit 221 is a gear transmission pair, including a driving gear 2211 and a driven gear 2212. Preferably, a control panel 40 is provided for controlling the start and stop of the motor 2111.

[0043] In a preferred specific embodiment, there are two rotating crushing units 202, the output end of the active unit 211 is connected to one end of the rotating shaft of one of its rotating crushing units, and the gear pair of the transmission unit 221 is connected to the other end of the rotating shaft of one of its rotating crushing units and the rotating shaft of the adjacent rotating crushing unit to achieve power transmission.

[0044] Preferably, a plurality of fixed crushing teeth 30 are fixedly arranged on the bottom wall of the discharge port, and the plurality of fixed crushing teeth 30 and at least a portion of the crushing wheel 21 of the rotating crushing unit 202 near the bottom wall of the discharge port are alternately stacked and spaced along the axial direction thereof, so as to reduce the possibility of leakage and breakage of the hardened cement blocks at the bottom of the discharge port. The plurality of rotating shafts 22 and the fixed crushing teeth 30 are all located in the same plane.

[0045] Preferably, the crushing cutter wheels 21 on the same rotating shaft 22 are arranged with a rotational offset of 60 degrees between each other, and finally the cross section of the rotating shaft 22 can be set to a regular hexagon, which can more conveniently realize the installation of the crushing cutter wheels 21 with a rotational offset of 60 degrees between each other on the rotating shaft 22. The crushing cutter wheel 21 has 8 cutter teeth, and the angle between the two cutter teeth is 45 degrees.

[0046] The present invention provides an energy-saving cement discharge port crusher with a simple structure, reasonable design, convenient use and good crushing effect. Uncompacted cement ash flowing to the discharge port flows out of the warehouse through the sieve holes of the sieve plate, and compacted cement blocks that cannot be screened out by the sieve plate slide down to the crushing mechanism below under the action of their own weight and are crushed by the crushing mechanism and then discharged from the cement warehouse, thereby reducing the total crushing amount of cement and reducing the waste of electricity. According to needs, when the cement material does not need to be crushed, the sieve plate and the crushing mechanism can be folded up to allow the raw materials to flow out directly.

[0047] The above description is only a preferred embodiment of the present invention, and therefore cannot be used to limit the scope of the present invention. That is, equivalent changes and modifications made according to the patent scope of the present invention and the contents of the specification should still fall within the scope of the present invention.

Claims

1. An energy-saving cement silo discharge pipe crusher, installed at the cement silo discharge port; characterized in that: The invention comprises a sieve plate which can be opened or covered on the upper part of the discharge port and a crushing mechanism which covers the lower part of the discharge port, the lower end surface of the sieve plate is connected to one end surface of the crushing mechanism, the sieve plate is evenly provided with a plurality of sieve holes for passing uncompacted cement, the sieve plate covering the discharge port is arranged obliquely, and the sieve plate surface has an acute angle with the central axis of the cement silo discharge port, the projected area of ​​the sieve plate on the cross section of the cement silo discharge port accounts for two-thirds of the cross-sectional area of ​​the discharge port, the crushing mechanism is provided with a plurality of power-driven rotating crushing cutter wheels for crushing compacted cement blocks on its covering surface, the compacted cement blocks which cannot be screened out by the sieve plate slide down to the crushing mechanism below under the action of their own weight, and are crushed by the crushing mechanism and then discharged from the cement silo; the sieve plate comprises two series shafts and a plurality of screen bars, the two series shafts are arranged in parallel and spaced apart, the plurality of screen bars are connected between the two series shafts and are spaced apart in parallel The utility model is arranged in a row, wherein one of the shafts is fixed across two pairs of side walls of the cement silo, and an arc groove is respectively provided on the two pairs of side walls of the cement silo, and the other shaft is located below the one shaft, and the two ends of the other shaft are respectively slidably connected with the corresponding arc groove so that the screen plate can be flipped around the one shaft along the guide of the arc groove to open the screen plate and connect the screen plate with one end of the crushing structure, or retract the screen plate so that the screen plate opens the discharge port, and the two ends of the other shaft can be fixed at any position along the direction of the arc groove by a fixing part; the crushing mechanism comprises a power drive device and at least one rotating crushing unit connected to the power drive device, and the rotating crushing unit is driven by the power drive device to rotate and crush the compacted cement blocks, and the rotating crushing unit comprises a rotating shaft and a plurality of crushing cutter wheels arranged at intervals along the length direction of the rotating shaft.

2. The energy-saving cement silo discharge pipe crusher according to claim 1 is characterized by: A plurality of first spacing sleeves are sleeved on the two series of shafts, two ends of the screen bar are sleeved on the two series of shafts, and a first spacing sleeve is arranged between two adjacent screen bars.

3. The energy-saving cement silo discharge pipe crusher according to claim 2 is characterized by: The screen bar and the string axis are arranged perpendicular to each other.

4. The energy-saving cement silo discharge pipe crusher according to claim 1 is characterized by: It comprises at least two rotating crushing units, which are arranged in parallel up and down, and at least parts of the crushing cutter wheels on adjacent sides of two adjacent rotating crushing units are alternately stacked and spaced along the axial direction thereof.

5. The energy-saving cement silo discharge pipe crusher according to claim 4 is characterized in that: The power drive device comprises a driving unit and a transmission unit. The output end of the driving unit is connected to one end of the rotating shaft of a rotating crushing unit to output the main force to the crushing mechanism. The transmission unit is arranged between the rotating shafts of two adjacent rotating crushing units to realize power transmission.

6. The energy-saving cement silo discharge pipe crusher according to claim 5 is characterized by: The active unit includes a motor, a reducer, and a coupling. The output shaft of the motor is connected to the input end of the reducer. The output end of the reducer is connected to the rotating shaft of the rotating crushing unit through the coupling. The transmission unit is a gear transmission pair.

7. The energy-saving cement silo discharge pipe crusher according to claim 5 is characterized by: A plurality of fixed crushing teeth are fixedly arranged on the bottom wall of the discharge port, and the plurality of fixed crushing teeth and at least a portion of the crushing wheel of the rotating crushing unit near the bottom wall of the discharge port are alternately stacked and spaced apart along the axial direction thereof.

8. The energy-saving cement silo discharge pipe crusher according to claim 1 is characterized by: A plurality of second spacing sleeves are sleeved on the rotating shaft, and the plurality of second spacing sleeves and a plurality of crushing cutter wheels on the same axis are arranged alternately.

9. An energy-saving cement silo discharge pipe crusher according to any one of claims 1 to 8, characterized in that: The crushing cutter wheels on the same rotating shaft are arranged with a rotational offset of 60 degrees between each other. The crushing cutter wheel has 8 cutter teeth, and the angle between two cutter teeth is 45 degrees.

10. The energy-saving cement silo discharge pipe crusher according to claim 9, characterized in that: The cross section of the rotating shaft is a regular hexagon.

11. The energy-saving cement silo discharge pipe crusher according to claim 1, characterized in that: The cross section of the screen bar is trapezoidal, the long bottom of the trapezoid faces outwards from the discharge port, and the short bottom of the trapezoid faces inwards from the discharge port.

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