CN218359879U - Pre-grinding classifier - Google Patents

Abstract

The utility model relates to a cement manufacture technical field especially relates to a grind grader in advance, and its technical scheme includes: feed bin, branch feed bin and fan body down, feed bin bottom intercommunication is installed and is ground the storehouse, grind the one end that the storehouse deviates from down the feed bin and divide feed bin bottom intercommunication installation, divide feed bin top fixed mounting to have second sieving mechanism body, second sieving mechanism body top is through third communicating pipe and fan body intercommunication installation. The utility model provides a current device can not fine utilize the problem of half coarse powder.

Description

Pre-grinding classifier

Technical Field

The utility model relates to a cement manufacture technical field specifically is a pre-grinding grader.

Background

At present, a combined grinding system consisting of roll squeezer pre-grinding and a ball mill is widely adopted in the cement industry for grinding materials such as cement clinker, the materials to be ground are extruded by the roll squeezer and then fed into a V-shaped powder concentrator by a lifting conveyor mechanism for scattering and sorting, coarse materials fall into a loading bin above the roll squeezer and then fed into the roll squeezer for extrusion, fine materials are taken into a cyclone dust collector and collected as semi-finished products to be fed into the ball mill for grinding; the material discharged from the ball mill is sorted by a high-efficiency dynamic powder concentrator, qualified products are collected by a bag dust collector, and coarse powder is returned to the ball mill for grinding.

The search shows that: chinese utility model patent: the publication number is CN212263510U, and the invention discloses a static double-classification powder concentrator and a semi-final pre-grinding system. The utility model discloses powder separation casing side and near top position department be equipped with the air intake, the inside is separated into coarse fodder screening chamber, half coarse fodder screening chamber and fine powder screening chamber by coarse fodder water conservancy diversion baffle group, fine powder water conservancy diversion baffle group, the coarse fodder screening intracavity is equipped with the top towards the material swift current board group of air intake direction slope, be equipped with the feed inlet on this material swift current board group top casing, be equipped with the coarse powder export on the bottom casing; a first air outlet is arranged on the shell above the semi-coarse material screening cavity, and a semi-coarse material outlet is arranged on the shell below the bottom of the semi-coarse material screening cavity; a second air outlet is arranged on the shell above the fine powder screening cavity, and a fine powder outlet is arranged on the shell below the bottom of the fine powder screening cavity; the first air outlet and the second air outlet are respectively controlled by valves. The utility model discloses powder concentrator easily carries out direct transformation to current v type powder concentrator, can high-efficient coarse grain, half coarse grain and the fine powder finished product in the separation material.

In the prior art, CN212263510U cannot effectively reprocess semi-coarse powder when in use, so that powder which cannot pass through a fine powder screening cavity cannot be effectively utilized, and a pre-grinding classifier is needed to solve the problem.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a grind grader in advance possesses the advantage that semi-coarse powder carries out reprocessing, has solved the problem that current device can not fine utilize semi-coarse powder.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a pre-grinding grader, includes feed bin, branch feed bin, fan body and storage bin down, the feed bin bottom intercommunication is installed and is ground the storehouse down, grind the one end that the storehouse deviates from down the feed bin and divide feed bin bottom intercommunication installation, branch feed bin top fixed mounting has second sieve material device body, second sieve material device body top is through third communicating pipe and fan body intercommunication installation.

When the pre-grinding classifier in the technical scheme is used, powder ground by the grinding bin enters the material distribution bin through the first screening device body through the second communicating pipe under the condition that the powder accords with the basic particle size, the powder entering the material distribution bin is screened through the second screening device body at the top of the material distribution bin, semi-coarse powder can enter the material return pipe under the action of the baffle, and the semi-coarse powder returns to the grinding bin through the material return pipe to be ground again.

Preferably, first communicating pipe is installed in unloading storehouse bottom intercommunication, and the one end that first communicating pipe deviates from the feed bin down is installed with grinding the storehouse intercommunication. Through setting up first connecting pipe, set up the blowing valve simultaneously on first connecting pipe to conveniently pour into the powder into and grind in the storehouse.

Preferably, the grinding bin is provided with a first screening device body in a communicating manner at one end deviating from the lower bin, and one side deviating from the grinding bin of the first screening device body is provided with a second communicating pipe in a communicating manner at the bottom end of the material distributing bin. Through setting up first sieve material device body to can realize the elementary screening to the powder through first sieve material device body, and inject the powder behind the preliminary screening into the branch feed bin through the second communicating pipe.

Preferably, a hole is formed in one side of the material distribution bin and is communicated with a material return pipe, one end, back to the material distribution bin, of the material return pipe is communicated with the top of the grinding bin, and a baffle is arranged in the material distribution bin. Through setting up the feed back pipe, be provided with the check valve on the feed back pipe simultaneously to the baffle through in the feed back storehouse can be ground the powder that can not carry out the screening through second sieving mechanism body reentrant grinding bin under the baffle effect.

Preferably, the bottom end of the fan body is communicated with the top of the storage bin. The blower body is arranged at the top of the storage bin, so that the powder is conveyed through the blower body.

Compared with the prior art, the beneficial effects of the utility model are as follows:

the utility model discloses a set up the branch feed bin and set up second sieve material device body at branch feed bin top, thereby when using, the powder that gets into the branch feed bin can be under second sieve material device body effect, sieve once more, and through the baffle of setting in dividing the feed bin, thereby block the powder that fails through second sieve material device body through the baffle, thereby make half middlings material accessible feed back pipe reentrant grinding storehouse carry out the secondary grinding, reached and carried out reprocessed effect to half middlings material.

Drawings

Fig. 1 is a schematic view of the structure of the present invention;

fig. 2 is the schematic view of the sectional structure of the material distributing bin of the present invention.

In the figure: 1. discharging a material bin; 2. a first communication pipe; 3. a grinding bin; 4. a material return pipe; 5. a first screening device body; 6. a second communicating pipe; 7. a material distributing bin; 8. a second screening device body; 9. a third communicating pipe; 10. a fan body; 11. a storage bin; 12. and a baffle plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element to which the reference is made must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "provided," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example one

As shown in fig. 1 and fig. 2, the present invention provides an embodiment: the utility model provides a pre-grinding grader, including feed bin 1 down, divide feed bin 7, fan body 10 and stock bin 11, it installs grinding bin 3 to go up feed bin 1 bottom intercommunication down, grinding bin 3 deviates from the one end of feed bin 1 down and divides the installation of feed bin 7 bottom intercommunication, divide 7 top fixed mounting of feed bin to have second sieve material device body 8, divide 7 one side trompils of feed bin and intercommunication to install feed back pipe 4, feed back pipe 4 is installed with 3 top intercommunication installations in grinding bin 7 apart from the one end of feed bin 7, be equipped with baffle 12 in the feed bin 7. Through setting up feed back pipe 4, be provided with the check valve on the feed back pipe 4 simultaneously to can be with failing to carry out the powder that sieves through second sieving mechanism body 8 and can get into again and grind storehouse 3 under baffle 12 effect through baffle 12 in the branch feed bin 7. The top of the second screening device body 8 is communicated with a fan body 10 through a third communicating pipe 9. The bottom end of the fan body 10 is communicated with the top of the material storage bin 11. The blower body 10 is installed on the top of the storage bin 11, so that the powder is conveyed through the blower body 10. Divide feed bin 7 and set up second sieve material device body 8 at branch feed bin 7 top through setting up, thereby when using, the powder that gets into feed bin 7 can be under second sieve material device body 8 effects, sieve once more, and through setting up baffle 12 in branch feed bin 7, thereby block the powder that fails through second sieve material device body 8 through baffle 12, thereby make half middlings material accessible feed back pipe 4 reentrant grinding storehouse 3 carry out the secondary grinding, reached half middlings material and carried out the effect of reprocessing.

Example two

As shown in fig. 1, the present invention provides an embodiment: compared with the first embodiment, the pre-grinding classifier further comprises a discharging bin 1 and a distributing bin 7, the bottom end of the discharging bin 1 is communicated with the grinding bin 3, the bottom end of the discharging bin 1 is communicated with the grinding bin 2, and one end, deviating from the discharging bin 1, of the first communicating tube 2 is communicated with the grinding bin 3. Through setting up first connecting pipe 2, set up the blowing valve simultaneously on first connecting pipe 2 to conveniently pour into the powder into and grind in the storehouse 3 and grind. Grind the one end that storehouse 3 deviates from feed bin 1 down and divide 7 bottom intercommunications installations of feed bin, grind the one end intercommunication that storehouse 3 deviates from feed bin 1 down and install first sieving mechanism body 5, one side that first sieving mechanism body 5 deviates from grinding storehouse 3 is through second communicating pipe 6 and 7 bottom intercommunications installations of feed bin. Through setting up first sieving mechanism body 5 to can realize the elementary screening to the powder through first sieving mechanism body 5, and pour into the branch feed bin 7 through the second powder after will prescreening in communicating pipe 6.

The utility model discloses during the use, under the condition that accords with basic particle diameter, the powder after grinding storehouse 3 grinds through first sieve material device body 5 in through second communicating pipe 6 entering branch feed bin 7 to the powder that gets into in the branch feed bin 7 is sieved through the second sieve material device body 8 at branch feed bin 7 top, and makes half coarse powder can get into feed back pipe 4 under baffle 12 effect, and gets back to through feed back pipe 4 and grind again in grinding storehouse 3.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (5)

1. The utility model provides a pre-grinding grader, includes feed bin (1), branch feed bin (7), fan body (10) and stockpile storehouse (11), its characterized in that: grinding bin (3) is installed in feed bin (1) bottom intercommunication down, grinding bin (3) deviates from the one end and the branch feed bin (7) bottom intercommunication installation of feed bin (1) down, branch feed bin (7) top fixed mounting has second sieve material device body (8), second sieve material device body (8) top is through third communicating pipe (9) and fan body (10) intercommunication installation.

2. The pre-grind classifier of claim 1, wherein: first communicating pipe (2) are installed in feed bin (1) bottom intercommunication down, and first communicating pipe (2) deviate from the one end and the grinding bin (3) intercommunication installation of feed bin (1) down.

3. The pre-grind classifier of claim 1, wherein: grind storehouse (3) and deviate from the one end intercommunication of feed bin (1) down and install first sieve material device body (5), one side that first sieve material device body (5) deviate from grinding storehouse (3) is through second communicating pipe (6) and branch feed bin (7) bottom intercommunication installation.

4. The pre-grind classifier of claim 1, wherein: the grinding device is characterized in that a hole is formed in one side of the material distribution bin (7) and is communicated with the material return pipe (4), one end, deviating from the material distribution bin (7), of the material return pipe (4) is communicated with the top of the grinding bin (3) and is installed, and a baffle (12) is arranged in the material distribution bin (7).

5. The pre-grind classifier of claim 1, wherein: the bottom end of the fan body (10) is communicated with the top of the material storage bin (11).

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