Powder screening equipment

Abstract

The utility model relates to the technical field of cement screening, and discloses powder screening equipment. The powder screening equipment comprises a screening cylinder, a powder screening resistance adjusting mechanism is installed on the upper portion of the interior of the screening cylinder, a powder screening anti-blocking mechanism is installed on the lower portion of the interior of the screening cylinder, the powder screening resistance adjusting mechanism comprises spiral rings installed on the upper portion of the interior of the screening cylinder, and a connecting device is connected between the spiral rings. The spiral rings are arranged on the upper portion of the interior of the screening barrel at equal intervals, the diameters of the interiors of the spiral rings are different, the connecting devices and the supporting rods are connected between the spiral rings, and the upper portions of the connecting devices and the upper portions of the supporting rods are used for supporting one side of the screening barrel with the larger and larger opening. Therefore, the upper portion of the screening barrel is opened and expanded, the effect of reducing wind resistance above the screening barrel is achieved, and the electric power cost of a circulating fan can be reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to cement screening technical field, concretely is a powder screening equipment. BACKGROUND

[0002] The fineness of cement is one of the key indicators to control the quality of cement, and the fineness of cement directly affects a series of performances such as setting hardening degree, strength, water demand, etc. Through the screening equipment, the particle size of cement can be screened and graded, so that the fineness of cement meets the standard, thereby ensuring the quality and stability of cement. This screening process not only can improve the performance of cement, but also can ensure the quality of concrete, because the cement with appropriate fineness can better react with water to form a more solid concrete structure. Therefore, a powder screening equipment is proposed.

[0003] The existing reference announcement number CN219073513U discloses a kind of powder screening device, belongs to screening device technical field. In the technical scheme, including shell, screening tank, acceleration plate, driving piece, discharge pipe and negative pressure generating piece;The shell has cavity;The screening tank is rotatably connected with the shell, and the screening tank includes feed section, filter section and slag discharge section;The filter section has material cavity and is located in the cavity, and the filter section is provided with filter hole;The feed section has feed channel and feed port;The slag discharge section has slag discharge channel and slag discharge hole;The acceleration plate is located in the slag discharge channel;The driving piece can drive the screening tank to rotate around the central axis of the screening tank;The discharge pipe is communicated with the cavity;The negative pressure generating piece is connected with the discharge pipe;The utility model can discharge the residue and large particle impurities that are not filtered out at the same time of screening out micro-particles, to avoid the residue and large particle impurities that are not filtered out to block the equipment, improve the screening efficiency of powder.

[0004] Based on the above patent search, and combined with the equipment in the prior art, since the resistance of the sintered two-wire raw mill cyclone is large, the power consumption is large when the cement is screened, the operating cost of the equipment is increased, and the screen is blocked when the cement is screened, which leads to low cement screening efficiency. The existence of these problems affects the use of the device. UTILITY MODEL CONTENT

[0005] (I) technical problem solved

[0006] In view of the deficiencies of the prior art, the utility model provides a kind of powder screening equipment, with the advantages of screening resistance reduction and screening anti-blocking, solves the above technical problems.

[0007] (II) technical scheme

[0008] To achieve the above object, the utility model provides the following technical scheme: a powder screening equipment, including screening cylinder, the inside top of screening cylinder is installed with sieve powder resistance adjusting mechanism, the inside bottom of screening cylinder is installed with powder screening anti -blocking mechanism, the sieve powder resistance adjusting mechanism includes: the spiral ring of installing in the inside top of screening cylinder, the connecting device is connected between the spiral ring, and the rear side of connecting device is fixedly installed with the support rod for equipment opening support, and the outside top of screening cylinder is provided with adjusting ring;

[0009] The powder screening anti-blocking mechanism includes: an intermediate rod installed at the inside bottom of the screening cylinder, one end of the intermediate rod is installed with a motor device, and the outside of the intermediate rod is connected with a connecting rod, and the connecting rods are connected with screening fans for preventing cement blockage.

[0010] As a preferred technical scheme of the utility model, the lower part of the screening cylinder is connected with a screening box, a circular feed inlet is formed in the upper part of the screening box, a powder grinding device is arranged in the inside of the screening box, a drive box is fixedly installed on one side of the screening box, and a discharge outlet is connected to the front of the screening box; the discharge outlet discharges the processed cement.

[0011] As a preferred technical scheme of the utility model, the spiral rings are equidistantly arranged in the inside of the screening cylinder, the connecting device and the support rod are both annularly distributed through the midpoint of the screening cylinder, the screening cylinder is large at the top and small at the bottom, and the inside diameters of the spiral rings are all different; the spiral rings are fixedly connected to one side of the inside of the equipment.

[0012] As a preferred technical scheme of the utility model, the intermediate rod is inserted into one side of the screening cylinder, a screening net is arranged below the screening fan, the screening net is fixedly installed in the inside of the screening cylinder, and every three screening fans form a group; the screening net screens the cement according to size.

[0013] As a preferred technical scheme of the utility model, the diameter of the bottom of the screening cylinder is consistent with the inside diameter of the feed inlet, the powder grinding device is arranged in multiple groups, and the screening cylinder and the screening box are in a mutual structure; the powder grinding device can further refine the cement.

[0014] As a preferred technical scheme of the utility model, the screening box is in a box shape, and the opening size of the discharge outlet is 0.7 times larger than that of the screening box; the screening box further processes the cement.

[0015] As a preferred technical scheme of the utility model, the motor device is fixedly installed on the right side of the screening cylinder, and the screening fan forms a rotary connection relationship between the intermediate rod and the motor device; the intermediate rod drives the equipment to rotate.

[0016] Compared with the prior art, the powder screening equipment has the following beneficial effects:

[0017] 1、The utility model discloses a motor device is fixedly installed on one side of screening cylinder, and one side of motor device is connected with intermediate rod, and intermediate rod is inserted in one side of screening cylinder, and the outside of intermediate rod is connected with connecting rod, and one end of connecting rod is connected with screening fan, and screening fan rotates through the setting of connecting rod, intermediate rod and motor device, so that the cement on the screening net is constantly stirred, and the cement can be prevented from blocking the top of screening net, and the cement caking and other conditions can be prevented from happening.

[0018] 2、The utility model discloses a spiral ring is set up above the inside of screening cylinder, and the inside diameter of spiral ring is not same, and connecting device and support rod are connected between spiral rings, and the side of screening cylinder that opening is getting bigger and bigger is supported through the top of connecting device and support rod, so that the top of screening cylinder is expanded, the function of reducing the wind resistance of the top of screening cylinder is reached, and the power cost of circulating fan can be reduced. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is the whole structure schematic diagram of the utility model;

[0020] Figure 2 It is the structure motor device subassembly schematic diagram of the utility model;

[0021] Figure 3 It is the structure screening cylinder subassembly schematic diagram of the utility model;

[0022] Figure 4 It is the structure screening box subassembly schematic diagram of the utility model;

[0023] 1, screening cylinder; 11, spiral ring; 12, connecting device; 13, support rod; 14, adjusting ring; 2, motor device; 21, intermediate rod; 22, connecting rod; 23, screening fan; 24, screening net; 3, screening box; 31, feed inlet; 32, grinding device; 33, drive box; 34, discharge port. DETAILED DESCRIPTION

[0024] The embodiment of the utility model is further described in detail in combination with the drawings and examples. The following examples are used to illustrate the utility model, but cannot be used to limit the scope of the utility model.

[0025] In the description of the utility model, unless otherwise specified, the meaning of "multiple" is two or more than two;The orientation or position relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", "third" and the like are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0026] In the description of the utility model, it should be pointed out that, unless otherwise specified and limited, the terms "connected" and "connected" should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected;It can be mechanically connected, or it can be electrically connected;It can be directly connected, or it can be indirectly connected through an intermediate medium. For ordinary skilled persons in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0027] Please refer to Figures 1-4 In the embodiment, a powder screening device comprises a screening cylinder 1, a powder screening resistance adjusting mechanism is installed above the inside of the screening cylinder 1, a powder screening anti-blocking mechanism is installed below the inside of the screening cylinder 1, the powder screening resistance adjusting mechanism comprises: a spiral ring 11 installed above the inside of the screening cylinder 1, a connecting device 12 connected between the spiral rings 11, a support rod 13 fixedly installed on the rear side of the connecting device 12, and an adjusting ring 14 arranged above the outside of the screening cylinder 1;The spiral rings 11 are equidistantly arranged in the inside of the screening cylinder 1, the connecting device 12 and the support rod 13 are both annularly distributed through the midpoint of the screening cylinder 1, the screening cylinder 1 is large at the top and small at the bottom, and the inside diameters of the spiral rings 11 are all different.

[0028] Specifically, the spiral rings 11 are equidistantly arranged in the inside of the screening cylinder 1, the opening of the screening cylinder 1 is large at the top and small at the bottom, the inside diameters of the spiral rings 11 are all different, the connecting device 12 and the support rod 13 are fixedly connected between the spiral rings 11, the inside four sides of the screening cylinder 1 are fixed by the connecting device 12 and the support rod 13, so that the upper opening of the screening cylinder 1 is expanded and extended, the expanded screening cylinder 1 can reduce the wind resistance at the top, achieve the effect of reducing resistance, and reduce the power cost of the equipment.

[0029] The powder screening anti-blocking mechanism comprises an intermediate rod 21 installed at the lower part inside the screening cylinder 1, one end of the intermediate rod 21 is provided with a motor device 2, the outside of the intermediate rod 21 is connected with connecting rods 22, and the connecting rods 22 are connected with screening fans 23; the intermediate rod 21 penetrates one side of the screening cylinder 1, the lower part of the screening fan 23 is provided with a screening net 24, the screening net 24 is fixedly installed inside the screening cylinder 1, and the screening fans 23 are grouped every three; the motor device 2 is fixedly installed at the right side of the screening cylinder 1, and the screening fan 23 is in a rotary connection relationship between the intermediate rod 21 and the motor device 2.

[0030] Specifically, the motor device 2 is arranged at one side of the screening cylinder 1, the inside of the motor device 2 is provided with a motor, one side of the motor device 2 is connected with the intermediate rod 21, the outside of the intermediate rod 21 is connected with the connecting rods 22 and the screening fans 23, the screening fans 23 are rotated through the connecting rods 22, the intermediate rod 21 and the motor device 2, so as to continuously overturn the cement accumulated above the screening net 24, prevent the cement from blocking the upper part of the screening net 24, and accelerate the screening efficiency of the cement.

[0031] The lower part of the screening cylinder 1 is connected with a screening box 3, the upper part of the screening box 3 is provided with a circular feeding port 31, the inside of the screening box 3 is provided with a grinding device 32, one side of the screening box 3 is fixedly installed with a driving box 33, and the front of the screening box 3 is connected with a discharge port 34; the diameter of the bottom of the screening cylinder 1 is consistent with the inside diameter of the feeding port 31, the grinding device 32 is arranged in multiple groups, and the screening cylinder 1 and the screening box 3 are in a through structure; the screening box 3 is in a box shape, and the opening size of the discharge port 34 is 0.7 times larger than the screening box 3.

[0032] Specifically, the lower part of the screening cylinder 1 is connected with the screening box 3, the upper part of the screening box 3 is provided with a circular feeding port 31, the cement screened is arranged by the feeding port 31, and multiple groups of grinding devices 32 are arranged in the inside of the screening box 3, the grinding devices 32 further process the cement to refine the cement.

[0033] In use, the inside of the screening cylinder 1 is equidistantly provided with spiral rings 11 of different sizes, the spiral rings 11 are connected with connecting devices 12 and support rods 13, the spiral rings 11 are fixed by the connecting devices 12 and the support rods 13, thereby internally fixing and supporting the screening cylinder 1 with increasingly larger openings on the upper side, the screening cylinder 1 with larger openings can reduce the wind resistance of the equipment, when the cement continuously enters the inside of the screening cylinder 1, a motor device 2 is arranged at the right middle part of the screening cylinder 1, the inside of the motor device 2 is provided with a motor, one side of the motor device 2 is connected with an intermediate rod 21, the intermediate rod 21 penetrates one side of the screening cylinder 1, the outside of the intermediate rod 21 is connected with a connecting rod 22 and a screening fan 23, the screening fan 23 rotates through the connecting rod 22, the intermediate rod 21 and the motor device 2, thereby continuously overturning the cement accumulated above the screening net 24, so that the cement quickly passes through the screening net 24, the feeding port 31 and directly enters the inside of the screening box 3, a plurality of grinding devices 32 are arranged in the inside of the screening box 3, the grinding devices 32 further process the cement, finally, the processed cement is discharged from the discharge port 34 in front of the screening box 3.

[0034] Although the embodiments of the present application have been shown and described, it is to be understood that for the purpose of the present application, the embodiments can be subject to many changes, modifications, substitutions and variations without departing from the spirit and scope of the present application, the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A powder screening device, comprising a screening cylinder (1), a powder screening anti-blocking mechanism is installed above the inside of the screening cylinder (1), and a powder screening resistance adjusting mechanism is installed below the inside of the screening cylinder (1), characterized in that, The sieve powder resistance adjusting mechanism comprises spiral rings (11) installed inside the top of the screening cylinder (1), connecting devices (12) connected between the spiral rings (11), support rods (13) fixedly installed on the rear side of the connecting devices (12), and adjusting rings (14) arranged on the top of the outside of the screening cylinder (1). The powder screening anti-blocking mechanism comprises middle rods (21) installed inside the bottom of the screening cylinder (1), motor devices (2) installed on one end of the middle rods (21), connecting rods (22) connected to the outside of the middle rods (21), and screening fans (23) connected between the connecting rods (22).

2. A powder sieving apparatus according to claim 1, wherein The screening cylinder (1) is connected with a screening box (3), the top of the screening box (3) is provided with a circular feeding port (31), the inside of the screening box (3) is provided with a grinding device (32), one side of the screening box (3) is fixedly installed with a driving box (33), and the front of the screening box (3) is connected with a discharge port (34).

3. A powder sieving apparatus according to claim 2, wherein, The spiral rings (11) are equidistantly arranged inside the screening cylinder (1), the connecting devices (12) and the support rods (13) are annularly distributed through the midpoint of the screening cylinder (1), the screening cylinder (1) is large at the top and small at the bottom, and the inside diameters of the spiral rings (11) are inconsistent.

4. The powder sieving apparatus of claim 1, wherein The middle rods (21) are inserted into one side of the screening cylinder (1), the screening fans (23) are provided with screening meshes (24) below, the screening meshes (24) are fixedly installed inside the screening cylinder (1), and every three screening fans (23) form a group.

5. A powder sieving apparatus according to claim 2, wherein The bottom diameter of the screening cylinder (1) is consistent with the inside diameter of the feeding port (31), the grinding devices (32) are arranged in multiple groups, and the screening cylinder (1) and the screening box (3) are in a communication structure.

6. A powder sieving apparatus according to claim 2, wherein The screening box (3) is in a box shape, and the opening size of the discharge port (34) is 0.7 times larger than that of the screening box (3).

7. The powder sieving apparatus of claim 1, wherein The motor device (2) is fixedly installed on the right side of the screening cylinder (1), and the screening fans (23) are in a rotary connection relationship between the middle rods (21) and the motor device (2).

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