Mixing and crushing mechanism for oil well cement expanding agent production

Abstract

The utility model discloses a mixing and crushing mechanism for producing an oil well cement expanding agent, which comprises a crushing box, a power source and a screen, the axis of the crushing box is horizontal, and the crushing box is axially provided with a first end and a second end which are opposite to each other; a feeding hole is formed in the upper side of the upper side wall of the crushing box, and a discharging hole is formed in the lower side; the power source is arranged on a first end cover at the first end of the smashing box and provided with a power shaft located in the smashing box, and a plurality of hammer heads are arranged on the power shaft. The second end cover is detachably arranged at the second end of the crushing box, a group of cover body parts penetrating into the crushing box body are coaxially and rotationally arranged on the second end cover, and fan-ring-shaped first supporting pieces are arranged on the end faces, facing the side of the first end cover, of the cover body parts around the midpoints; a mortise lock assembly is arranged between the cover body part and the second end cover; the screen is arranged on the discharging port, the first end of the screen is connected with the first end cover in a pulling and inserting mode, the second end of the screen is arranged on the first supporting piece in a lap joint mode, and the filter screen is convenient to disassemble and assemble, maintain and replace.

Description

TECHNICAL FIELD

[0001] The utility model relates to the petroleum drilling auxiliary agent production equipment field, specifically, relate to a kind of mixed pulverization mechanism for oil well cement expansion agent production. BACKGROUND

[0002] Referring to the patent application with the publication number CN117049811A, in the production process of oil well cement expansion agent, limestone, alunite and fly ash and other mixed materials are ball milled into finished products with particle size of 100 to 200 mesh; in the actual production process, limestone, alunite and fly ash and other materials need to be mixed and pulverized into fine particles before ball milling to save subsequent ball milling time and improve ball milling efficiency; during the mixing and pulverizing of the above materials, due to the large difference in hardness of alunite, limestone and fly ash, after the limestone, alunite and fly ash are impacted and knocked by the hammer heads / pieces of the pulverizer, the particle size of the pulverized materials is not uniform, and some material particles are easily and frequently stuck in the holes of the screen, causing blockage; in addition, the materials are also impacted and worn during the pulverizing process, so the screen needs to be regularly disassembled and maintained.

[0003] At present, the crushing box of most pulverizers is composed of two parts connected by flange structure, and when disassembling the screen, the crushing box needs to be opened into two parts to facilitate the removal / installation of the screen, which is time-consuming and inconvenient to maintain. UTILITY MODEL CONTENT

[0004] The utility model aims to overcome the shortcomings of the background art and provide a mixed pulverization mechanism for oil well cement expansion agent production with easy disassembly and maintenance of the screen.

[0005] The embodiments of the utility model are implemented by the following technical solutions:

[0006] A mixed pulverization mechanism for oil well cement expansion agent production includes:

[0007] The crushing box is cylindrical with its axis horizontal, and the crushing box is provided with opposite first and second ends in the axial direction; a feed inlet is formed in the upper side wall of the crushing box, and a discharge outlet is provided in the lower side wall;

[0008] A power source is provided on the first end cover of the first end of the crushing box, and the power source is connected with a power shaft located in the crushing box, and a plurality of hammer heads for pulverizing materials are provided on the power shaft;

[0009] A second end cover is detachably arranged on the second end of the pulverizing box, a plurality of cover portions are coaxially arranged on the second end cover and penetrate into the interior of the pulverizing box body, a plurality of first support members are arranged on the end face of the cover portions facing the first end cover, and a plurality of insertion lock assemblies are arranged between the cover portions and the second end cover to limit the rotation of the cover portions.

[0010] A screen is arranged on the discharge port, a first end of the screen is detachably connected with the first end cover, and a second end of the screen is arranged on the first support members.

[0011] Further, the second end cover is connected with the second end of the pulverizing box through a flange assembly, bolt holes are arranged on the second end cover, the insertion lock assemblies include insertion plates connected with the cover portions, and the end portions of the insertion plates are provided with insertion holes coaxial with the bolt holes and connected with the bolt holes through bolts.

[0012] Further, a plurality of second support members are arranged on the end face of the cover portions, the first support members and the second support members are coaxial, and the gap between the first support members and the second support members in the radial direction is matched with the thickness of the screen, so that the second end of the screen can be clamped between the first support members and the second support members.

[0013] Further, the second end cover is provided with the cover portions and a flange portion, the flange portion is connected with the second end of the pulverizing box through a first flange assembly, the cover portions are provided with connecting portions rotatably connected with the flange portion, the connecting portions are annular, a first bearing is arranged on the power shaft and in the middle of the connecting portions, and the insertion plates are arranged on the connecting portions.

[0014] Further, the end portions of the screen are provided with a plurality of insertion pins facing the first end cover in the axial direction of the pulverizing box, and the first end cover is provided with insertion holes matched with the insertion pins.

[0015] Further, the inner walls of the pulverizing box are provided with buckling portions matched with the edges of the screen.

[0016] Further, the first end of the pulverizing box is connected with a mounting seat outside the first end through a second flange assembly, the mounting seat is used for mounting and fixing the power source, a second bearing is arranged in the second flange assembly, and the power shaft penetrates into the second bearing.

[0017] The technical scheme of the embodiment of the utility model has at least the following advantages and beneficial effects:

[0018] The utility model discloses a mixed crushing mechanism for oil well cement expansion agent production, the second end cover of the crushing box is coaxially rotatably provided with the cover body part, and the cover body part is inserted and sealed in the second end interior of the crushing box, the first end of the screen is pull -inserted and is connected on the first end cover of the crushing box, and the second end is supported through the first support piece on the cover body part, the cover body part is locked through the mortise lock component and makes the first support piece unable to rotate, when needing to dismount the screen, the mortise lock component is unlocked, and the cover body part is rotated a certain angle, makes the second end of the screen separate from the first support piece, at this moment, the second end of the screen naturally drops and inclines, at this moment, the first end of the screen is extracted from the first end cover, and the screen is convenient and fast to operate, and the maintenance and replacement convenience of the screen are improved. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is the front view of the mixed crushing mechanism for oil well cement expansion agent production of the utility model,

[0020] Figure 2 It is the A-A section view of Figure 1

[0021] Figure 3 It is the assembly relation of the second end cover and the screen in the embodiment of the utility model Figure 1 ;

[0022] Figure 4 It is the assembly relation of the second end cover and the screen in the embodiment of the utility model Figure 2 ;

[0023] Icon:1-crushing box, 10-feed inlet, 11-discharge port, 12-first end cover, 13-second end cover, 130-cover body part, 131-connection part, 132-flange part, 1320-bolt hole, 133-first bearing, 134-insertion plate, 1340-insertion hole, 135-first support piece, 136-second support piece, 14-mounting seat, 140-second bearing, 15-first flange assembly, 16-second flange assembly, 2-screen, 20-latch, 17-buckling part, 3-power source, 30-power shaft, 31-hammer head. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical scheme and advantage of the embodiment of the utility model more clear, the technical scheme in the embodiment of the utility model will be described clearly and completely below in combination with the drawings in the embodiment of the utility model, and obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiment. The components of the embodiment of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0025] Reference Figures 1 to 4 ​The utility model discloses a kind of mixed grinding mechanisms for oil well cement expansion agent production, including grinding box 1, power source 3, first end cap 12, second end cap 13 and screen 2.

[0026] Wherein, with reference Figure 1 , grinding box 1 is cylindrical and is set to horizontal structure, i.e. the axis of grinding box 1 is horizontal, and grinding box 1 is provided with opposite first end and second end in axial direction, i.e. Figure 1 The left side of grinding box 1 is its first end and the right side is its second end, and the upper side wall of grinding box 1 is provided with feeding port 10, and the lower side wall of grinding box 1 is provided with discharge port 11, and feeding port 10 is provided with hopper.

[0027] With reference Figure 1 , power source 3 is installed on the first end cap 12 of the first end of grinding box 1, and power source 3 is provided with power shaft 30, and power shaft 30 extends to the inside of grinding box 1 by penetrating the first end cap 12, and power shaft 30 is provided with a plurality of hammer heads 31 for grinding, and power source 3 provides power of rotary motion to power shaft 30, so power source 3 can be selected as motor or oil power machine.

[0028] With reference Figure 1 , the second end of grinding box 1 is detachably provided with second end cap 13, i.e. by disassembling second end cap 13, the hammer heads 31 and power shaft 30 inside grinding box 1 can be conveniently overhauled and maintained.

[0029] With reference Figure 1 , discharge port 11 is provided with screen 2, and the function of screen 2 is to discharge the particles after grinding, and to retain larger particles which are not completely ground to be further ground by hammer heads 31, so screen 2 needs to have certain thickness and structural strength to withstand the impact of raw material particles in the crushing process, and not to be deformed or damaged.

[0030] With reference Figure 1 And Figure 3 , wherein the first end of screen 2 is fixed on the first end cap 12 by pulling and inserting, and in the embodiment, the end of screen 2 is provided with latch 20, and the inner wall of first end cap 12 is provided with insertion hole corresponding to the plurality of latches 20.

[0031] Wherein, the second end of screen 2 is supported by the first supporting piece 135 on second end cap 13, and specifically:

[0032] The second end cover 13 has a cover part 130 and a flange part 132, both of which are circular structures and coaxial, wherein the cover part 130 extends and seals on the inner wall of the crushing box 1, the cover part 130 and the flange part 132 are connected through an annular connecting part 131, the flange part 132 is connected with the second end of the crushing box 1 through the first flange assembly 15, so as to realize the sealing and detachable connection between the second end cover 13 and the second end of the crushing box 1; wherein the cover part 130 and the connecting part 131 are located inside the crushing box 1, the first flange assembly 15 is arranged on the outer side of the crushing box 1 in the radial direction, that is, the first flange assembly 15 is an outer flange structure, and the flange plate on the crushing box 1 does not interfere with the disassembly of the cover part 130 and the connecting part 131.

[0033] Wherein, referring to Figure 4 , the connecting part 131 is fixedly welded on the end face of the cover part 130, and the outer wall of the connecting part 131 is rotationally connected with the inner wall of the flange part 132, and the first support 135 is arranged on the end face of the cover part 130 facing the first end cover 12 in a fan ring shape, and the center of the first 135 is located on the axis of the second end cover 13; wherein the arc of the first support 135 matches the arc of the screen 2, referring to Figure 2 , the second end of the screen 2 is supported on the first support 135, and only the cover part 130 needs to be rotated by a certain angle, so that the second support 135 rotates by a corresponding angle to be separated from the screen 2, and after the screen 2 is separated from the support of the second support 135, it falls, inclines and extends to the outside of the discharge port 11. At this time, only the first end of the screen 2 needs to be pulled out of the first end cover 12.

[0034] It is easy to understand that the inner diameter of the insertion hole on the first end cover 12 needs to be slightly larger than the outer diameter of the insertion pin 20, so as to facilitate the smooth insertion and extraction of the screen 2.

[0035] When the mixed crushing mechanism works, the first support 135 needs to be fixed to prevent it from rotating, therefore, a latch assembly is arranged between the cover part 130 and the flange part 132 to limit the rotation of the cover part 130, thus the latch assembly can be a structure such as an insertion pin or a bolt which penetrates through the cover part 130 and the flange part 132 at the same time.

[0036] In this embodiment, the flange part 132 of the second end cover 13 is provided with a bolt hole 1320 through which a bolt is arranged, the latch assembly includes an insertion plate 134 connected with the cover part 130, the end of the insertion plate 134 has an insertion hole 1340 coaxial with any of the bolt holes 1320, and the insertion hole 1340 and the bolt hole 1320 are connected through a bolt locking connection; referring to Figure 4In the embodiment, one end of the insertion plate 134 is bent and inserted and welded on the connecting part 131, and the other end extends to the periphery parallel to the end face of the flange part 132, the insertion hole 1340 at the end of the insertion plate 132 just overlaps a group of bolt holes 1320 on the flange part 132, and the rotation of the cover part 130 and the first supporting part 135 can be prevented by simultaneously inserting bolts into the bolt holes 1320 and the insertion hole 1340.

[0037] In one preferred embodiment, referring to Figure 2 The end face of the cover part 130 is further provided with a second supporting part 136 in the shape of a fan ring, and the first supporting part 135 is coaxial with the second supporting part 136, and the gap between the first supporting part 135 and the second supporting part 136 in the radial direction is adapted to the thickness of the screen 2, so that the second end of the screen 2 can be clamped between the first supporting part 135 and the second supporting part 136, the fixing of the screen 2 is more stable, and when disassembling, the second end of the screen 2 can be simultaneously separated from the first supporting part 135 and the second supporting part 136 by only rotating the cover part 130.

[0038] In addition, referring to Figure 1 The power shaft 30 extends to the outside of the crushing box 1 at the second end of the crushing box 1, and the first bearing 133 is arranged on the power shaft 30 in the middle of the connecting part 131; the mounting seat 14 is connected to the outside of the first end cover 12 through the second flange assembly 16 at the first end of the crushing box 1, wherein the mounting seat 14 is used for mounting and fixing the power source 3, and the second bearing 140 is arranged in the second flange assembly 16, and the power shaft 30 is arranged in the second bearing 140; through the above arrangement, the first bearing 133 and the second bearing 140 are actually located on the outside of the crushing box 1, and dust can be prevented from entering the two bearings.

[0039] In addition, referring to Figure 2 The inner wall of the crushing box 1 is further provided with a buckle part 17 on both sides and abuts against the edge of the screen 2, so that the crushed material is smoothly guided onto the screen 2, and a gap is left between the end of the buckle part 17 and the cover part 130 in the axial direction of the crushing box 1, and the gap is slightly larger than the thickness of the first supporting part 135 in the axial direction of the crushing box 1, and the purpose is that the cover part 130 does not interfere with the buckle part 17 when rotating.

[0040] The working principle of the utility model is as follows:

[0041] When the screen 2 needs to be disassembled and maintained, the mixed crushing mechanism is in a stop state, the bolt on the insertion hole 1340 of the insertion plate 134 is removed, the cover body 130 is rotated by a certain angle, the second end of the screen 2 is separated from the support of the first support 135 and naturally tilts and falls, at this time, the screen 2 can be pulled out from the first end cover 12; when the screen 2 is installed, only the first end of the screen 2 needs to be inserted into the first end cover 12, the screen 2 is lifted to be horizontal, the cover body 130 is rotated to make the first support 135 support the second end of the screen 2 again, and then the insertion plate 134 is fixed.

[0042] The preferred embodiments of the utility model are merely used for limiting the utility model, and the utility model can be changed and varied for the person skilled in the art. Any modification, equivalent replacement, improvement and the like within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A mixing and crushing mechanism for producing oil well cement expanding agent, characterized in that, The utility model relates to a kind of pulverizing box and its installation structure, including: Pulverizing box, which is cylindrical and has an axis that is horizontal, is provided with opposite first end and second end in axial direction; upper side wall of the pulverizing box is provided with feed inlet, and lower side wall is provided with discharge outlet; Power source is provided on the first end cover of the first end of the pulverizing box, and the power source is connected with power shaft located in the pulverizing box, the power shaft is provided with a plurality of hammer heads for pulverizing material; Second end cover is detachably provided on the second end of the pulverizing box, a group of cover parts penetrating into the interior of the pulverizing box body are coaxially arranged on the second end cover, a plurality of first support members are arranged around the midpoint on the end face of the side facing the first end cover; the cover part and the second end cover are provided with a latch assembly to limit the rotation of the cover part; and Screen is provided on the discharge outlet, the first end of the screen is connected with the first end cover, and the second end is arranged on the first support member.

2. The mixed pulverization mechanism for oil well cement expansion agent production according to claim 1, characterized in that, The second end cover is connected with the second end of the pulverizing box through the flange assembly; the second end cover is provided with bolt holes, the latch assembly includes a plugboard connected with the cover part, the end of the plugboard has a plug hole coaxial with any bolt hole, and the plug hole and the bolt hole are connected through bolt locking.

3. The mixed pulverization mechanism for oil well cement expansion agent production according to claim 1 or 2, characterized in that, The end face of the cover part is also provided with a plurality of second support members, and the first support member and the second support member are coaxial, the gap of the first support member and the second support member in radial direction is matched with the thickness of the screen, so that the second end of the screen can be clamped between the first support member and the second support member.

4. The mixed pulverization mechanism for oil well cement expansion agent production according to claim 2, characterized in that, The second end cover has the cover part and the flange part, wherein the flange part is connected with the second end of the pulverizing box through the first flange assembly, the cover part has a connecting part rotatably connected in the flange part; the connecting part is annular, and the middle part of the connecting part is provided with a first bearing sleeved on the power shaft; the plugboard is installed on the connecting part.

5. The mixed pulverization mechanism for oil well cement expansion agent production according to claim 1 or 2, characterized in that, In the axial direction of the pulverizing box, the end of the screen has a plurality of plugs facing the first end cover, and the first end cover is provided with a plurality of plug holes matched with the plugs.

6. The mixed pulverization mechanism for oil well cement expansion agent production according to claim 1 or 2, characterized in that, The inner wall of the pulverizing box is also provided with a buckle part on both sides matched with the edge of the screen.

7. The mixed pulverization mechanism for oil well cement expansion agent production according to claim 1, characterized in that, The first end of the pulverizing box is connected with a mounting seat outside through the second flange assembly, the mounting seat is used for mounting and fixing the power source, the second flange assembly is provided with a second bearing inside, and the power shaft penetrates into the second bearing.

Images