Device for reducing content of finished aggregate needle pieces
By designing a device with a multi-layer screen and a limiting plate structure, the problem of poor screening effect in the existing technology has been solved, achieving efficient screening of needle-shaped aggregates, reducing the content of needles and flakes, and improving the ease of operation and screening quality.
Patent Information
- Application Number
- CN202422751283.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-12
- Publication Date
- 2025-11-21
- Estimated Expiration
- 2034-11-12
AI Technical Summary
The existing equipment has poor screening effect, resulting in a high content of needle-shaped and flaky particles, which leads to waste of raw materials and energy. At the same time, the rectangular screen holes cannot effectively screen out slender needle-shaped aggregates.
A device comprising a base, a processing box, and a screening box was designed. It employs multi-layered inclined circular and strip screens, combined with a vibrating motor and cylinder structure. Limiting plates and shielding strips prevent needle-shaped aggregates from entering the discharge pipe, thereby improving the screening effect. The sampling structure facilitates the observation of screening quality.
It improves the screening effect of needle-shaped aggregates, reduces the content of needle-shaped and flaky particles, reduces the waste of raw materials and energy, and ensures the quality and convenience of screening work.
Smart Images
Figure CN223570901U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to sand and gravel processing technical field, specifically related to a kind of reducing finished product aggregate needle piece content device. BACKGROUND
[0002] With the increasing demand of domestic infrastructure construction on sand and gravel, sand and gravel resource development and utilization are in the period of rapid industry development.Mechanism gravel is the main raw material of concrete, and high needle flake particle content will directly affect the compressive strength of cement sand gravel.Therefore, controlling the needle flake particle content is one of the effective ways to reduce the void ratio of mechanism gravel and improve the performance of concrete.
[0003] Currently, to reduce the needle flake particle content of mechanism gravel and optimize the particle shape, mechanism gravel can be added to the ore, and the product edges are polished through the shaping process.However, during the shaping process, most of the particle shape meets the standard requirements of the aggregate are polished and crushed together with irregular particles by the crusher, causing great waste of raw materials and energy.In addition, the screen holes of the screen in the existing device are rectangular, and due to the slender shape of the needle-shaped aggregate, some needle-shaped aggregates may be inserted longitudinally into the screen holes and pass through them during vibration screening, resulting in general screening effect for needle-shaped aggregate. SUMMARY
[0004] The utility model aims to provide a kind of reducing finished product aggregate needle piece content device, which is reasonable in structure design, convenient to operate, easy to maintain, improves the screening effect of needle-shaped aggregate, facilitates sampling observation, and ensures the quality of screening work.
[0005] To achieve the above-mentioned purpose, the utility model realizes the following technical solutions:
[0006] A kind of reducing finished product aggregate needle piece content device, including bottom, processing box and screen box connected in sequence from bottom to top, processing box and bottom are supported and fixed by support leg, and the center of bottom is provided with shaping crusher;
[0007] The top of screen box is provided with feeding hopper, and the first circular screen structure and the second circular screen structure are layered and laid in screen box, the aggregate screened by the first circular screen structure enters the processing box through the first feeding pipe, and the aggregate screened by the second circular screen structure enters the processing box through the second feeding pipe;
[0008] The processing box is internally provided with two screen frames which are symmetrically distributed, each of the screen frames has a top portion which is inclined towards the center and the top portion is embedded with a strip-shaped screen structure, a limiting plate which is parallel to the strip-shaped screen structure is arranged in the screen frame, a cylinder structure which controls the lifting of the limiting plate is arranged in the screen frame, the bottom portion of the screen frame is funnel-shaped and the bottom center of the screen frame is connected with a discharge pipe, the bottom portion of the screen frame which is close to the center of the processing box is provided with a discharge channel which has a blocking structure, a blocking strip is arranged on the lower side of the limiting plate which is close to the blocking structure and is located between the blocking structure and the cylinder structure.
[0009] The bottom center of the processing box is provided with a collecting frame, a collecting bucket and a discharge pipe which are integrally arranged and sequentially connected from top to bottom, the collecting frame is used for collecting the aggregate discharged from the discharge channel, and the discharge pipe penetrates through the bottom plate of the processing box and faces the shaping crusher.
[0010] Further, the first circular screen structure or the second circular screen structure comprises a circular screen and a vibration motor fixedly connected to the bottom surface of the circular screen; and the strip-shaped screen structure comprises a strip-shaped screen and a vibration motor fixedly connected to the bottom surface of the strip-shaped screen.
[0011] Further, the blocking structure comprises a connecting rod and a blocking block, one end of the connecting rod is connected to the lower side of the limiting plate, the other end of the connecting rod is connected to the blocking block, and the blocking block is inserted into a discharge opening arranged at the top of the discharge channel.
[0012] Further, the collecting frame is internally provided with a sampling structure, the sampling structure comprises two blocking plates which are arranged in pairs, the two blocking plates are spliced to block the downward discharge of the aggregate, the outward end of each blocking plate is provided with a pulling plate, the inward end of each blocking plate is provided with a limiting block, and the limiting blocks are magnetically attracted to each other.
[0013] Compared with the prior art, the device has the following advantages:
[0014] The device for reducing the needle content of finished aggregate has reasonable structure design, is convenient to operate and maintain, improves the screening effect of needle-shaped aggregate, facilitates sampling observation, and ensures the quality of screening work. BRIEF DESCRIPTION OF DRAWINGS
[0015] Figure 1 is a schematic view of the overall structure of the device.
[0016] Figure 2 is a sectional view of the overall structure of the device.
[0017] Figure 3 is a sectional view of the screen frame structure of the device.
[0018] Figure 4 is Figure 3 is an enlarged schematic view of the structure at A in FIG.
[0019] Figure 5 is a sectional view of the collecting frame structure of the device.
[0020] Fig. 1 is a processing box; 2 is a base; 3 is a supporting leg; 4 is a sub-screen box; 41 is a first circular screen; 42 is a second circular screen; 43 is a first feeding pipe; 44 is a second feeding pipe; 45 is a valve; 46 is a feeding hopper; 5 is a screen frame; 6 is a first strip screen; 7 is a second strip screen; 8 is a connecting plate; 9 is a cylinder structure; 10 is a limiting plate; 11 is a collecting hopper; 12 is a discharging pipe; 13 is a shaping crusher; 14 is a sampling structure; 141 is a collecting frame; 142 is a baffle; 143 is a limiting block; 144 is a pulling plate; 15 is a discharging pipe; 16 is a discharging opening; 17 is a discharging channel; 18 is a connecting rod; 19 is a blocking block; 20 is a shielding strip; 21 is a box door. DETAILED DESCRIPTION
[0021] The embodiments of the present application will be further described in detail below with reference to the drawings.
[0022] As shown in the drawings, Figure 1 A device for reducing the needle content of finished aggregate, comprising a base 2, a processing box 1 and a sub-screen box 4 connected in order from bottom to top, the processing box 1 and the base 2 are fixed and supported by supporting legs 3, and the center of the base 2 is provided with a shaping crusher 13. The processing box 1 or the sub-screen box 4 adopts a front door opening structure, and the box door 21 is opened from the front for maintenance and repair.
[0023] As shown in the drawings, Figure 2 The top of the sub-screen box 4 is provided with a feeding hopper 46, and the first circular screen 41 and the second circular screen 42 are arranged in layers and inclined in the sub-screen box 4. The aggregate screened by the first circular screen 41 enters the processing box 1 through the first feeding pipe 43, and the aggregate screened by the second circular screen 42 enters the processing box 1 through the second feeding pipe 44.
[0024] As shown in the drawings, Figure 2 , 3 , 4, the processing box 1 is provided with two screen frames 5 symmetrically distributed in it, each screen frame 5 has a top inclined to the center and a strip screen embedded in the top, and the left and right screen frames 5 have a first strip screen 6 and a second strip screen 7 respectively, the screen frame 5 is provided with a limiting plate 10 parallel to the strip screen and a cylinder structure 9 for controlling the lifting of the limiting plate 10, the bottom of the screen frame 5 is funnel-shaped and the bottom center is connected with a discharging pipe 15, the discharging pipe 15 penetrates through the side wall of the processing box 1, the bottom of the screen frame 5 close to the center of the processing box 1 is provided with a discharging channel 17 with a blocking structure, the discharging channel 17 is used to discharge the needle-shaped aggregate into the screen frame 5, the lower side of the limiting plate 10 close to the blocking structure is provided with a shielding strip 20, the shielding strip 20 is located between the blocking structure and the cylinder structure 9, and the shielding strip 20 is used to block the needle-shaped aggregate to avoid rolling into the discharging pipe 15.
[0025] The bottom center of the processing box 1 is provided with a collecting frame 141, a collecting hopper 11 and a discharge pipe 12 which are integrally connected from top to bottom, the collecting frame 141 is used to collect the aggregate discharged from the discharge channel 17, and the discharge pipe 12 penetrates the bottom plate of the processing box 1 and is directed to the shaping crusher 13.
[0026] The bottom surface of the first or second circular screen 41 or 42 is connected to fix a vibration motor, and the bottom surface of the first or second strip screen 6 or 7 is connected to fix a vibration motor. Specifically, the first circular screen 41 is located on the upper side and is arranged in a left-low right-high inclined manner, one end of the first feeding pipe 43 penetrates the left side wall of the screening box 4 and is connected to the left side of the first circular screen 41, and the other end penetrates the top wall of the processing box 1; the second circular screen 42 is located on the lower side and is arranged in a left-high right-low inclined manner, one end of the second feeding pipe 44 penetrates the right side wall of the screening box 4 and is connected to the right side of the second circular screen 42, and the other end penetrates the top wall of the processing box 1. The first or second feeding pipe 43 or 44 is provided with a valve 45 for controlling the falling of the aggregate.
[0027] The screening frame 5 is provided with a connecting plate 8 which is connected to fix the front and rear sides of the screening frame 5, and the connecting plate 8 is connected to the limiting plate 10 through the cylinder structure 9.
[0028] The blocking structure includes a connecting rod 18 and a blocking block 19, one end of the connecting rod 18 is connected to the lower side of the limiting plate 10, and the other end is connected to the blocking block 19, and the blocking block 19 is inserted into the discharge opening 16 at the top of the discharge channel 17.
[0029] As shown in Figure 5 The collecting frame 141 is provided with a sampling structure 14 for sampling the screened aggregate, thereby facilitating the judgment of the screening condition of the needle-shaped aggregate. The sampling structure 14 includes two blocking plates 142 arranged in pairs, the two blocking plates 142 are spliced to block the downward discharge of the aggregate, the outward end of the blocking plate 142 is provided with a pull plate 144, and the inward end is provided with a limiting block 143, that is, the facing surfaces of the two blocking plates 142 are fixedly connected with the limiting blocks 143, and the opposite surfaces are fixedly connected with the pull plates 144, and the limiting blocks 143 are magnetically attracted. Preferably, in order to avoid that the blocking plates 142 are not tightly spliced in the collecting frame 141, the materials of the limiting blocks 143 and the pull plates 144 are both magnetite, and the collecting frame 141 is made of iron material.
[0030] The working principle of the utility model is: first, the bone material to be processed is poured into the separating box 4 through the feeding hopper 46, the first round sieve 41 and the second round sieve 42 are vibrated by the vibration motor to separate the bone material, because the size of the sieve hole of the first round sieve 41 is larger than that of the second round sieve 42, the large bone material stays on the first round sieve 41, the small bone material stays on the second round sieve 42, and the too small bone material falls into the bottom of the separating box 4; the large bone material on the first round sieve 41 rolls to the left and enters the processing box 1 through the first feeding pipe 43, the small bone material on the second round sieve 42 rolls to the right and enters the processing box 1 through the second feeding pipe 44, then the large bone material falls on the first strip sieve 6, and the small bone material falls on the second strip sieve 7, the first strip sieve 6 and the second strip sieve 7 are vibrated by the vibration motor to separate the bone material again, the bone material with qualified shape and size passes through the sieve hole of the first strip sieve 6 or the second strip sieve 7 and enters the sieve frame 5, then rolls to the discharge pipe 15 from the bottom of the sieve frame 5 in the shape of a funnel, and the bone material with qualified size is discharged through the discharge pipe 15; at this time, the lower end of the needle-shaped bone material inserted into the sieve hole of the first strip sieve 6 or the second strip sieve 7 abuts against the top surface of the limiting plate 10, so that the needle-shaped bone material cannot move downward along the inclined surface and enter the sieve frame 5, avoiding the needle-shaped bone material from entering the discharge pipe 15 with the bone material with qualified size, thereby improving the separation effect of the needle-shaped bone material; when too many needle-shaped bone materials are inserted into the sieve hole of the first strip sieve 6 or the second strip sieve 7 and seriously affect the separation efficiency, the limiting plate 10 is lowered by controlling the air cylinder structure 9, the lowering of the limiting plate 10 makes the needle-shaped bone material inserted into the sieve hole of the first strip sieve 6 or the second strip sieve 7 pass through the sieve hole and enter the sieve frame 5, and move in the center direction of the processing box 1 on the inclined top surface of the limiting plate 10, the needle-shaped bone material falls on the bottom of the sieve frame 5 close to the center of the processing box 1 and moves in the direction of the discharge pipe 15, but the further movement of the needle-shaped bone material is blocked by the blocking strip 20, because the lowering of the limiting plate 10 drives the lowering of the connecting rod 18, so the blocking block 19 fixedly connected to the lower end of the connecting rod 18 enters the discharge channel 17 through the discharge opening 16 after the discharge opening 16 is opened, the needle-shaped bone material which is limited from further moving rolls into the discharge opening 16 and is discharged downward through the discharge channel 17, and finally falls into the collecting frame 141.
[0031] Further, when the device is just started, the two baffles 142 in the collecting frame 141 are pushed to move towards each other until the two limiting blocks 143 are attracted, at this time, the bone material falling into the collecting frame 141 stays on the baffles 142, the operator can sample and observe the bone material on the split baffles 142 to judge the separation of the device on the needle-shaped bone material; when it is determined that the device is normally separated, the two pull plates 144 are pulled to move away from each other until the two limiting blocks 143 respectively adhere to the side walls of the collecting frame 141, at this time, the needle-shaped bone material falling into the collecting frame 141 will continue to fall into the collecting hopper 11, and then is discharged into the shaping crusher 13 through the discharge pipe 12.
[0032] The above merely describes preferred embodiments of the present application, and it should be noted that, for those skilled in the art, without departing from the concept of the present application, a number of improvements and refinements can be made, and these improvements and refinements should also be considered as falling within the scope of the present application.
Claims
1. A device for reducing the content of needle-shaped and flaky aggregates in finished products, characterized in that: It comprises a base, a processing box and a screening box connected in sequence from bottom to top, the processing box is supported and fixed with the base through support legs, and the center of the base is provided with a shaping crusher; The top of the screening box is provided with a feeding hopper, the first and second circular screen structures are arranged in layers and obliquely in the screening box, the aggregate screened by the first circular screen structure enters the processing box through the first feeding pipe, and the aggregate screened by the second circular screen structure enters the processing box through the second feeding pipe; The processing box is provided with two screen frames which are symmetrically distributed, each screen frame has a top which is inclined to the center and is provided with a strip screen structure, the screen frame is provided with a limiting plate which is parallel to the strip screen structure and a cylinder structure which controls the lifting of the limiting plate, the bottom of the screen frame is in the shape of a funnel and is connected with a discharge pipe at the center of the bottom, the bottom of the screen frame close to the center of the processing box is provided with a discharge channel which has a blocking structure, the lower side of the limiting plate close to the blocking structure is provided with a shielding strip which is located between the blocking structure and the cylinder structure; The center of the bottom of the processing box is provided with a collecting frame, a collecting hopper and a discharge pipe which are connected in sequence from top to bottom and form an integral structure, the collecting frame is used to collect the aggregate discharged by the discharge channel, and the discharge pipe penetrates the bottom plate of the processing box and faces the shaping crusher.
2. A device for reducing the needle content of a finished aggregate according to claim 1, characterized in that: The first or second circular screen structure comprises a circular screen and a vibration motor fixed to the bottom surface of the circular screen; and the strip screen structure comprises a strip screen and a vibration motor fixed to the bottom surface of the strip screen.
3. A device for reducing the needle content of a finished aggregate according to claim 1, characterized in that: The blocking structure comprises a connecting rod and a blocking block, one end of the connecting rod is connected to the lower side of the limiting plate, the other end of the connecting rod is connected to the blocking block, and the blocking block is inserted into a discharge opening at the top of the discharge channel.
4. A device for reducing the needle content of a finished aggregate according to claim 1, characterized in that: The collecting frame is provided with a sampling structure, the sampling structure comprises two blocking plates which are arranged in pairs and can block the downward discharge of the aggregate, the outward end of each blocking plate is provided with a pull plate, the inward end of each blocking plate is provided with a limiting block, and the limiting blocks are magnetically attracted to each other.