CN2227526Y

CN2227526Y - Pulverizing grading machine

Info

Publication number: CN2227526Y
Application number: CN94235650U
Authority: CN
Inventors: 宋海滨
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-11-01
Filing date: 1994-11-01
Publication date: 1996-05-22
Anticipated expiration: 2004-11-01

Abstract

The utility model belongs to a pulverizing and grading machine for pulverizing micro-powder material, which is composed of an airflow pulverizing box 3, sorting arrangements 6, a cyclone collecting device 8 and a material connecting tube 7. The air inlet 1 of the airflow pulverizing box is situated at the side face of a jet pipe shell 2 whose outer end is permanently provided with a demountable end cover 9. The separating rotor 18 of the sorting arrangement 6 has a cylindrical structure so as to ensure the grading quality of micro-powder. The separating rotor 18 is installed at the upper end of the sorting arrangement through a rotating shaft 17, and the sorting arrangements whose number can be 2 to 4 are connected together by the powder connecting tube 7. The utility model can meet the grading variety of micro-powder material.

Description

The crushing and classification machine

The utility model belongs to micro mist material grinding and grading plant.

Produce at present the crushing and classification machine that uses,, make the air-flow crush box be difficult to reach best crushing effect material because the distance between two jet pipes can not regulate according to the granularity of material.Secondly, the separation rotor in the former grading plant is a pyramidal structure, because separation rotor radius of a circle difference causes its axial line speed that bigger variation is arranged, thereby influences the partition size quality of product.The 3rd, because the upper surface and the hermetically-sealed construction between the grading plant end face of separation rotor are unreasonable, cause a large amount of materials to run off through this binding site, this also is the key factor that influences the stock grading quality, the 4th, what the shedding mechanism in the former grading plant adopted is the discharging of cylinder slot type, because in the stock grading process, grading plant inside is in negative pressure state, this traditional shedding mechanism can not stop entering of outside air effectively, and these air enter from shedding mechanism, can upset the poised state of grading plant inside, causing the granularity of material disorderly and unstable, is the key factor that influences the stock grading quality equally.

The purpose of this utility model is in order to overcome above-mentioned deficiency, and a kind of crush efficiency height of design, the crushing and classification machine that grading effect reaches the constant product quality of classification well.

The utility model is to realize like this, it is made up of air-flow crush box, grading plant, tornado collection device and company's material receiving tube, its technical essential is: the air inlet of air-flow crush box is fixedly mounted on the side of jet pipe shell, the end cap that one of the outer end of jet pipe shell fixed installation can be for convenience detach like this, open this end cap, can load and unload the sleeve and the jet pipe that are installed in the jet pipe shell easily,, regulate two distances between the jet pipe by changing employed jet pipe.In order to guarantee the classification quality of material, change traditional conical separation rotor into cylindrical separation rotor, make the linear velocity on the separation rotor circumference identical, to guarantee the classification quality of its separation rotor.In order to guarantee the particle size range of its stock grading, this crushing and classification machine adopts 2～4 grading plants to be installed in series.

Because the distance between this crushing and classification machine two jet pipes can be regulated according to the size of being pulverized raw material, thereby pulverized raw material is collided with the speed of the best, to reach the optimum efficiency of raw material pulverizing, improves material grinding efficient.Owing to, not only can regulate the distance between two jet pipes easily, and make things convenient for installation and maintenance to airslide disintegrating mill to the improvement of air inlet.Improvement to separation rotor, it not only can guarantee the classification quality of material, and can realize the multi-stage separation of material, guarantee its separating effect, particle size range behind the stock grading is narrowed down, after particularly adopting 2～4 grading plants to be installed in series, can isolate 2～5 kinds of products that particle size range is different, to accord with various application target requirements.

Fig. 1 is the structure principle chart of this crushing and classification machine;

Fig. 2 is the structure principle chart of air-flow crush box;

Fig. 3 is the structure principle chart of grading plant.

Below in conjunction with accompanying drawing the utility model is described in detail: air-flow crush box 3 of the present utility model, grading plant 6, tornado collection device 8, be fixedly connected sequentially through connecting material receiving tube 7.The air inlet 1 of its air-flow crush box 3 is located at the side of jet pipe shell 2, makes detachable end 9 of outer end fixed installation of jet pipe shell 2, so just can make things convenient for the interior sleeve 10 of jet pipe shell 2 and installation, replacing and the maintenance of jet pipe 11.Directly the main effect of the grading plant 6 that is connected with air-flow crush box 3 is that the feed separation that does not reach minimum particle standard after pulverizing is come out, and makes it enter into jet pipe 11 through discharge valve 5, feed back pipe 4, pulverizes once more through jet pipe 11 ejections.Being installed in the grading plant of first grading plant back, is that the dust-like material that will reach the particle standard carries out classification, material is divided into the product of several different grain size scopes.The quantity of its grading plant is generally 2～4, is connected in series just can reach micro-powder graded requirement, and grading plant 6 preferably three series connection constitutes.By adjusting the rotating speed of each separation rotor, just can guarantee that each grading plant 6 isolates the product of different size respectively.In order to reach the purpose of classification, guarantee the classification quality of material, its separation rotor 18 adopts cylindrical structurals, because cylindrical separation rotor 18 is in rotary course, the linear velocity on its circumference is identical, the raw meal particle size of separating just can guarantee.Separation rotor 18 is installed in the upper end of grading plant through rotating shaft 17, and the lower surface of separation rotor 18 is a tapered cap, makes the material of jet 15 ejections enter into the side of separation rotor 18, separates so that material is carried out classification.In order to prevent that material runs off with air-flow from the upper surface of separation rotor 18 and the slit between grading plant 6 top boards, the hermetically-sealed construction between the top board of the upper surface of separation rotor 18 and grading plant 6 is labyrinth sealing 16.The discharge valve of this grading plant 6 can adopt traditional version.In order to prevent that grading plant 6 is in the process of discharging, air is inhaled into from discharge port, influence the separating effect of grading plant 6, this discharge valve 5 adopts twin-stage turnover plate type shedding mechanism, its specific constructive form is: the charging aperture of discharge valve 5 and discharging opening are separately installed with bin gate 14 and bin gate 12, last bin gate 14 and bin gate 12 are installed on the shell of discharge valve 5 through rotating shaft respectively, between last bin gate 14 and discharge valve 5 shells bin gate extension spring 20 are installed, to guarantee closing of bin gate 14.Between bin gate 12 and discharge valve 5 shells, bin gate extension spring 13 is installed, to guarantee the semi-closure of bin gate 12.On the shell of the discharge valve 5 between the rotating shaft of the rotating shaft of last bin gate 14 and bin gate 12, power shaft is installed, be installed with on this power shaft and turn handle 19, the outer end of this power shaft is equipped with power set, these power set can be rocking handles, can manually rotate, also can be that motor or other can drive the power that this power shaft rotates.The operation principle of this discharge valve 5 is: by the rotary power rotating shaft, turning handle 19 with drive rotates, turning handle 19 turns to when top, it promotes to go up bin gate 14 Unscrews, material enters into discharge valve 5 from the lower end of grading plant 6, turn handle 19 and be rotated further, make and turn handle 19 and last bin gate 14 slippages, last bin gate 14 is closed under the effect of last bin gate extension spring 20.When turn handle 19 rotate to below the time, then promoting bin gate 12 opens, material is discharged from discharge valve 5, continue rotation and turn handle 19, then turn handle 19 and bin gate 12 slippages, bin gate 12 is closed under the effect of bin gate extension spring 13, has finished a discharging cyclic process, turn the continuation rotation of handle 19, repeat above-mentioned discharge process.This discharge way has a bin gate sealing all the time in discharge process, can stop air to enter effectively, thereby just can guarantee the poised state of grading plant 6 inside, to guarantee the classification quality of material.

Claims

1. crushing and classification machine, form by air-flow crush box (3), grading plant (6), tornado collection device (8) and company's material receiving tube (7), it is characterized in that: the air inlet (1) of air-flow crush box (3) is fixedly mounted on the side of jet pipe shell (2), an outer face fixed installation detachable end (9) of jet pipe shell (2), the separation rotor (18) of its grading plant (6) is a cylindrical structural, the upper end of this separation rotor (18) in rotating shaft (17) is installed in grading plant (6), grading plant (6) is 2～4, through connecting material receiving tube (7) series connection fixed installation.

2. crushing and classification machine according to claim 1 is characterized in that: be sealed into labyrinth sealing (16) between the upper surface of separation rotor (18) and grading plant (6) top board.

3. crushing and classification machine according to claim 1 and 2 is characterized in that: grading plant (6) is three, and is fixedly connected through connecting material receiving tube (7) series connection.

4. crushing and classification machine according to claim 1 and 2, it is characterized in that: the discharge valve (5) that is fixedly mounted on grading plant (6) lower end is twin-stage turnover plate type structure, its charging aperture and discharging opening are separately installed with bin gate (14) and bin gate (12), last bin gate (14) and bin gate (12) are installed on the shell of discharge valve (5) through rotating shaft respectively, between the shell of last bin gate (14) and discharge valve (5), bin gate extension spring (20) is installed, between the shell of bin gate (12) and discharge valve (5), bin gate extension spring (13) is installed, installation has the power shaft that turns handle (19) on the shell of the discharge valve (5) between the two bin gate rotating shafts, and the outer end of this power shaft is equipped with power set.