CN2203183Y

CN2203183Y - High-tem. material disintegrator

Info

Publication number: CN2203183Y
Application number: CN 94222807
Authority: CN
Inventors: 尹兴伊
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-10-06
Filing date: 1994-10-06
Publication date: 1995-07-12
Anticipated expiration: 2004-10-06

Abstract

The utility model relates to a high temperature material disintegrator. The rotor of the utility model is mainly composed of a hanging hammer and a rotary knife arranged on the same machine shaft. The disintegrator is also provided with an air stream shaft seal device and a water-cooled bearing seat, which can crush high-temperature lump materials directly. The temperature rise of the bearing seat is very low, and the shaft hole has no dust leakage. Consequently, the utility model can not stop rotation due to the machine blocking when the moment feeding is over-loaded or the bulk materials are fed in. The utility model is suitable for the disintegration of materials of calcined celite, limestone, magnesia, etc.

Description

High-tem. material disintegrator

The utility model provides a kind of high-temperature material pulverizer, and rotor and sieve sheet, casing, air-flow gland seal device and the water-cooling bearing block etc. be made up of suspending hammer that is installed in coaxial rotation in the same pulverizing chamber and rotating knife constitute, and belong to size reduction machinery.

Existing high temperature lump material pulverizer adopts rotating knife and the coaxial rotation of suspending hammer the be placed in structure of two pulverizing chamber and band water-cooling bearing block and air-flow gland seal device ［ document 1 ］.This pulverizer can be broken into powder with high temperature lump material disposable powder.But because of its rotating knife and suspending hammer two pulverizing chamber that are placed in, the high temperature lump material contacts with arbor with rotating knife in first broken chamber, and the material after the pulverizing enters second level pulverizing chamber along arbor again, therefore causes the arbor temperature rise too high.Run well for the guarantor levies bearing, must strengthen cooling water flow, and adopt the high temperature grease of high-quality, even so normal condition bearing block temperature is still above 100 ℃.This machine machine stall phenomenon can occur filling in when moment charging excess load or feed block are excessive in addition, and this production line to continuous running is the shortcoming that must overcome.

At the above-mentioned deficiency of prior art, the utility model provides that a kind of bearing block temperature rise is low, the short time excess load can not filled in the high-temperature material pulverizer of machine stall.

This pulverizer takes following technical measures realization reduction bearing block temperature rise and moment charging excess load can not fill in the purpose of machine stall.

On the basis of existing high-temperature material pulverizer with air-flow gland seal device and water-cooling bearing block, change rotating knife and revolve the structure of hammering two pulverizing chamber that are placed in into shape, rotating knife and suspending hammer are installed in the compartment of terrain on same arbor, and rotating knife and suspending hammer are radially staggering 45 °.The suspending hammer end surface is interconnected on direction of rotation; Whole rotor places in the same pulverizing chamber.Change the charging aperture position, material is entered by the tangential direction of pulverizer top along rotor rotation garden week, and strengthen charging aperture.Radially the wallboard inwall is installed triangle flute profile reflecting plate on casing top.

The high temperature bulk materials enters along the tangential direction in rotor rotation garden week during work, is rotated cutter at once and is twisted into fritter, and be broken into powder by suspending hammer, among sieve aperture and outlet are disposed to system; The material that flies out along the rotor tangential direction plate that is reflected reflects further and is smashed by suspending hammer, has improved crushing effect.Because along the tangential direction charging in rotation garden week, the suspending hammer head is interconnected again, the normal condition material does not reach arbor, so the bearing block temperature rise is very low.When moment charging excess load, because rotating knife twists and fragmentation with turning over, suspending hammer can be turned round as usual, machine stall phenomenon can not appear filling in.The utility model is used for the diatomaceous earth block of 900 ℃ of chargings and pulverizes only 30-40 ℃ of water-cooled axle bed temperature rise.Make material moment be full of pulverizing chamber, pulverizer still can smooth operation, material is discharged rapidly, and guarantee that axis hole does not have dust and leaks.And under equal conditions, existing diatomite is pulverized machine, bearing block temperature rise above 100 ℃; Fill in the machine stall during excess load, can restart after drawing clean material.The utility model is suitable for the pulverizing of the not really high lump materials such as baked diatomite, lime stone and magnesia of hardness.

Accompanying drawing

1,2 is the structural representation (at rotation status) of high-temperature material pulverizer.Pulverizer casing (3) divides two parts up and down, and there is flange (10) centre with bolted together.Reflecting plate (2) is equipped with on casing top radially side plate inwall, and sieve sheet (12) is equipped with in the casing bottom.Air-flow axle envelope (15) is equipped with at casing axis hole place, and air-flow axle envelope gas outlet is connected to negative pressure system through sweep-up pipe (16).Charging aperture on the casing (1) receiving hopper, discharging opening (14) is equipped with support flange (13).Axially fixing water-cooling bearing block (17) on the support (21) of backboard both sides, cooling water pipe joint (18) is being arranged on the bearing block.Rotor in the pulverizing chamber is fixed on many groups dividing plate (5), large washer (19) on the same arbor (8) by flat key, rotating knife (6) and be fixed on the pivot pin (9) on four jiaos on the dividing plate and be contained in small washer (20) and suspending hammer (4) formation on the pivot pin.The suspending hammer end surface is staggered on direction of rotation; Rotating knife and suspending hammer are at the 45 ℃ of angles of radially staggering.Rotating knife is divided into several groups with suspending hammer: the group number of rotating knife is looked feed block size and the decision of pulverizer specification.Feed block is bigger, and the pulverizer specification is bigger, and its rotating knife group number the more.Be 2 groups of rotating knifes in the present embodiment, then suspending hammer is divided into 3 groups.One end of arbor is equipped with belt wheel (22) or shaft coupling, is turned round under certain revolution by driven by motor, and its revolution is by being determined by comminuting matter character and technological requirement.

Embodiment 1

Rotor mill diameter 320mm, 2 groups of rotating knifes, 3 groups of 24 suspending hammers; Charging aperture 280 * 280mm; Have air-flow gland seal device and water-cooling bearing block.1000 rev/mins of rotating speeds, power of motor 7.5KW.Pulverize the diatomaceous earth block of 900 ℃ of high temperature, largest block diameter 240mm, per hour charging is 0.7 ton, and the discharging maximum particle size is less than 20 orders; Running continuously, 30-40 ℃ of water-cooling bearing block temperature rise.The moment charging is full of casing, and pulverizer is running as usual, and axis hole does not have dust fully and leaks.

Embodiment 2

The pulverizer identical with embodiment 1, sieve sheet aperture 2.5mm.Be used for baked lime stone and pulverize, per hour charging is 0.8 ton, maximum feed diameter 200mm, and 98% less than 20 orders in the discharging.Moment feeds in raw material and is full of casing.Pulverizer is running as usual still, and axis hole does not have dust fully and leaks.

Claims

1, a kind of high-temperature material pulverizer, the rotor of forming by suspending hammer that is installed in the coaxial rotation in the same pulverizing chamber and rotating knife, and formations such as sieve sheet, casing, air-flow gland seal device and water-cooling bearing block; It is characterized in that rotating knife and suspending hammer are installed in the compartment of terrain on same arbor, rotating knife and suspending hammer are radially staggering 45 °; The suspending hammer end surface is interconnected in direction of rotation; Whole rotor places in the same pulverizing chamber.

2, high-temperature material pulverizer according to claim 1 is characterized in that charging aperture on casing top, along the tangential direction configuration in rotor rotation garden week.

3, claim 1,2 described high-temperature material pulverizers, its feature also be the casing first half radially the wallboard inwall triangle flute profile reflecting plate is installed.