RU27906U1 - UNIT FOR RECEIVING AND SUBMITTING RAW MATERIALS TO A TECHNOLOGICAL LINE FOR PRODUCING, PREFERREDLY, CERAMIC PRODUCTS - Google Patents

Description

allowing you to change the frequency and duration of the engine, determining the frequency of oscillation of the strips, overlapping the outlet. This solution allows stepless adjustment of the capacity of the hopper feeder. However, the bunker feeder according to patent No. 2067960 is intended mainly for powder-like materials; in its design, no means are provided for forcible advancement and loosening of the material, therefore, in cases of using a feeder for clay raw materials susceptible to sticking and clumping, the device will be subject to frequent breakdowns and stops.

In typical production lines for the manufacture of building products, for example (see patent RU 2037413, 28 V 15/00, publ. 19.06.95), the unit for receiving and supplying raw materials is a receiving device in the form of a hopper, a feeder placed under the hopper and installed transporting body under the feeder.

As a prototype of the claimed utility model, a clay feed receiving and feeding unit was adopted, including a serial box-type feeder SMK-1090, equipped with a twin-shaft clipper of the Lenstroykeramiki design (see the book by S. Zh. Saybulatov “Production of ceramic bricks, M: Stroyizdat, 1990, p. .61-63, Fig. 15.16).

The clay ripper is placed above the feeder and includes a raw material hopper, at the output of which parallel rotating shafts with bills are mounted, breaking, cutting large clay lumps and promoting material advancement, forcing loose material through the grate located under the shafts into a container mounted under the clay shovel. The shaft rotation drive includes a motor from which the rotation through the gearbox and the gear transmission is transmitted to the shafts with beats. The feeder is a steel rectangular box, the bottom of which is made in the form of an endless conveyor, and a conveyor device in the form of a conveyor belt is installed under the outlet of the feeder. The feeder is equipped with shutter dampers, which allow dosing of the feed, changing the cross section of the output channel due to the raising and lowering of the gate. However, the action is performed manually when setting up the process. The specified design of the unit does not allow for the operational regulation of the supply of raw materials during the process, for the readjustment requires a shutdown of the device. In addition, in general, the unit is a large-sized design, several devices placed in two or more levels, which complicates the installation and maintenance of the unit.

The inventive utility model solves the problem of providing the ability to control the magnitude of the supplied raw materials during the technological process, while at the same time taming the design of the unit.

The problem is solved in that in the unit for receiving and supplying raw materials to the production line for the production of mainly ceramic products containing a receiving hopper, means for promoting the raw materials in the form of rotating shafts with loosening elements associated with their rotation drive, a feeder mounted under the hopper and mounted Under the feeder’s outlet, the conveyor belt, according to the claimed utility model, means of promoting the raw materials are placed in the feeder under the open bottom of the receiving hopper and are made in the form screw and / or blade shafts, the drive of which includes an engine with an adjustable output shaft speed, the unit is equipped with a control unit including means for controlling the speed of the engine output shaft, and a weighing device mounted on a conveyor belt and connected to the said control unit.

The above set of distinguishing features allows you to combine the functions of a cultivator and a feeder in one device, which greatly simplifies the installation and maintenance of the unit. In addition, the implementation of the drive of rotation of the screw shafts on the basis of an engine with an adjustable frequency and equipping the unit with a weighing device for the raw material supplied by the feeder, connected to the control unit that controls the frequency of rotation of the engine output shaft, makes it possible to monitor the mass of the raw material delivered by the nitrator during the technological cycle and, depending from the information received or by production necessity, by changing the frequency of rotation of the motor shaft, change the speed of rotation of the screw / blade shafts, fected loosening and promoting materials, increasing or decreasing the supply quantity.

The unit control unit can be located on the operator’s manual control panel, or connected to the control system of the automatic product production line. The control unit receives and processes information from the weighing device and provides a corresponding signal to the means for controlling the frequency of rotation of the output shaft of the engine, which in a particular implementation can be performed in the form of a block for regulating the frequency of the current supplied to the input of the shaft rotation drive motor.

3 The essence of the utility model

In the specific case of the utility model, the weighing device can be made in the form of tensometric supports of the conveyor belt.

It is preferable to make the rotating shafts with a helical flap along the entire length of the shaft and equip them with wing blades fixed to the end sections of the shafts at an angle to the direction of rotation of the screw. The design of the winged blades allows not only loosening, but at the same time promotes the advancement of the lower layer of clay sloped into the hopper towards the discharge window.

At the outlet of the receiving hopper, it is advisable to install the mass dividers of the raw materials, preventing the adhesion of raw materials at the outlet of the hopper, contributing to the separation of the flow, loosening, cutting of raw materials.

The dividers can be made in the form of longitudinal plates fixed in the plane of the open bottom of the hopper.

It is advisable to run guides at the bottom of the feeder housing, for example from a corner profile, with the top pointing upward, fixed parallel to the shafts and arranged in plan between them. This decision is aimed at ensuring the directivity of the flow of raw materials towards the discharge window.

In order to ensure the loading of raw materials into the receiving hopper, the unit can be equipped with a ramp for the arrival of vehicles.

The inventive utility model is illustrated by the following drawings:

In FIG. 1 shows a block diagram of the inventive device, thin arrows show the movement of the leveling signals, volume arrows show the direction of movement of the feed stream;

In FIG. 2 - General view (from the end) of the device, with a partial section;

In FIG. 3 - general view (in plan) of the hopper and feeder, with a partial section;

In FIG. 4 - a fragment from figure 2, shows the implementation of the mass divider of raw materials.

Information confirming the feasibility of implementing a utility model

The unit for receiving and supplying raw materials contains (see Fig. 2,3) a receiving hopper 2 mounted on the frame structure 2, a feeder 3 located below it, including screw shafts 4 installed in parallel in the feeder housing, and a conveyor belt 5, which carries out the transportation of the feed from the feeder 3 raw materials to the dryer drum (not shown in the drawings). The rotation of the screw shafts 4 is carried out by means of a drive consisting of an electric motor 6 s

List of drawings

a phase rotor and a gear 7 and gears. On the conveyor belt 5, a weighing device 8 is installed, made in the form of a tensometric support and electrically connected to the control unit 9, including means for controlling the frequency of rotation of the output shaft of the engine 6 and connected to the hand control panel or an automatic line computer.

The receiving hopper 2 is equipped with a ladder and a service platform (not shown in the drawings), and a ramp 10 is mounted in the immediate vicinity of the frame structure 1. The bottom of the hopper is open with dividers 11 mounted in its plane, which are mounted on parallel shafts 12 and below an acute angle of the plate 13 relative to each other (see FIG. 4), the receiving hopper 2 and the feeder 3 are arranged relative to each other so that the dividers 11 are located above the median screw shafts 4, which, in addition to the helical sheath and 14 extending along the entire length of the shaft, are provided, mounted at an angle to the rotating direction of the screws and at the marginal parts of the shaft 15 with vane blades acute-angled profile. The discharge window 16 of the feeder 3 is located with an offset to the end part of the feeder, in relation to which the screws rotate, while the bottom of the feeder housing 3 is made with parallel guides 17 located in the areas between the screw shafts 4.

The unit operates as follows, (see Fig. 1)

When clay is delivered from the quarry by road, the latter drives onto the ramp 10 and unloads the clay into the receiving hopper 2, the volume of which can be equal to the volume of one and a half bodies of a KamAZ car. When the electric motor 6 is turned on, the rotation of the screw shafts 4 begins. Part of the clay from the lower part of the hopper 2 is moved to the feeder Z by the action of gravity, where the screw blades 14 and the wing blades 15 of which are crushed and at the same time the clay layer is moved to the discharge window 16. From the unloading window, clay gets onto the conveyor belt 5, which feeds the raw materials to the dryer drum (or other appropriate equipment of the processing line). The weight of the clay flow is monitored by the weighing device 8. When the maximum weight parameter is exceeded, the signal from the weighing device 8 is sent to the control unit 9, where the signal is processed and the corresponding signal is sent to the electric motor 6 to change the speed of the engine output shaft. The rotation speed of the screw shafts 4 is reduced, therefore, the amount of raw material supplied from the feeder 3 to

conveyor 5, and as a result, the amount of feed to the process line is reduced.

Thus, the claimed solution in a rather simple and economical way allows us to solve the problem of automatic automatic regulation of the dosage of raw materials at the beginning of the technological line for the preparation of raw materials and the production of ceramic wall products.

In addition, due to the combination of the functions of a cultivator and a feeder in one unit, the design of the claimed utility model is compact, installation and maintenance of the device during operation is simplified.

Applicant-author ///// / I.F. Schlegel. .

Claims (8)

1. The unit for receiving and supplying raw materials to the production line for the production of mainly ceramic products, containing a receiving hopper, means for promoting the raw materials in the form of rotating shafts with loosening elements associated with a drive for their rotation, a feeder installed under the hopper and mounted under the feeder outlet conveyor, characterized in that the means of promoting raw materials are placed in the feeder under the open bottom of the receiving hopper and are made in the form of screw and / or blade shafts, the drive of which includes There is an engine with an adjustable speed of the output shaft, and the unit is equipped with a control unit including means for controlling the speed of the output shaft of the engine, and a weighing device mounted on a conveyor belt and connected to the said control unit.  2. The unit according to claim 1, characterized in that the means for regulating the frequency of rotation of the output shaft of the engine is made in the form of a unit for controlling the frequency of the current supplied to the input of the motor of the drive shaft rotation.  3. The unit according to claim 1 or 2, characterized in that the weighing device is made in the form of tensometric supports of the conveyor belt.  4. The unit according to claim 1, or 2, or 3, characterized in that the rotating shafts are made with a helical blade along the entire length of the shaft and are equipped with wing blades mounted on the end sections of the shafts at an angle to the direction of rotation of the screw.  5. The unit according to any one of claims 1 to 4, characterized in that at the output of the receiving hopper there are installed mass dividers of raw materials.  6. The assembly according to claim 5, characterized in that the dividers are made in the form of longitudinal plates fixed in the plane of the open bottom of the hopper.  7. The unit according to any one of claims 1 to 6, characterized in that the feeder is made with guides mounted on the bottom of the feeder housing parallel to the shafts and in plan between them. 8. The unit according to any one of claims 1 to 7, characterized in that it is equipped with a ramp for driving in vehicles and loading raw materials into the receiving hopper.