SU1609678A1 - Installation for preparing multicomponent mixture - Google Patents

Abstract

The invention relates to the construction and can be used for the preparation of various mixtures. The goal is to increase productivity. In an apparatus for preparing a multicomponent mixture, the device for feeding components into the bucket of a skip hoist has a device for moving trays to the working position. In the component feeder, the flap 51 forming the front wall of its body is hinged to the side walls by means of an axis 53. The tool for moving the tray 59 to the working position is designed as fixed on the side walls of the sliding section of the tray of copiers 57, the rollers 55 in contact with them and spring-loaded levers 54. At one end of the lever 54, the roller 55 is fixed, and the other end of the lever is fixed on the axis 53 of the flap 51. The design of the device for feeding the components allows simultaneous unloading Ku of several dispensers and prevents spillage during overload. 11 il.

Description

The invention relates to the construction and can be used for the manufacture of various mixtures.

The goal is to improve performance.

Fig, 1 shows the installation, the general view; Fig 2 is the same, top view; on fig.Z - section aa in figure 1; figure 4 - section bb on .fig, 1; figure 5 - node I in figure 1 .; FIG. 6 shows node II in FIG. 1; Fig, 7 - funnel with a bolt in a perspective view; Fig. 8 is a diagram of the formation of a layer of material and discharging it onto a conveyor; on

Fig, 9 - dispenser - in axonometry; FIG. 10 is a kinematic dispenser circuit; FIG. 11 is a plant management diagram.

A plant for preparing a multicomponent mixture contains tanks 1 arranged along the process for storing the corresponding material of the component of the mixture being prepared. Under the platform 2, funnels 3 are installed under the frame 2, equipped with a rotary shutter 4. The latter has a radial bottom 5, sides 6, covering the walls of the funnel 3, inward and interconnected by a vertical wall 7 located across and having a trapezoidal window, the cross section of which overlapped with a height-adjustable gate 8 to create a material exit area determined by the area and prevent material spillage.

The shutter 4 contains a pneumatic cylinder 9 turning the shutter relative to the supports, and an adjustable stop 10 providing the required angle of rotation of the shutter 4. Adjustment of the cross section of the shutter window and its angle is made depending on the fraction and humidity of the material.

Under the valves 4 funnels 3 is a grooved conveyor 11 under

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five

thirty

45

35

40

50

55

components in bins I2-14 to accumulate the corresponding components. Under the driving drum of the conveyor 11, a rotary funnel 15 is installed for transferring the components to the corresponding storage bin (12-14) having a loading port 16,

The funnel 15 is mounted on a vertical axis and is rotated by a drive 18 by 270-360 ° through a gear train 17, the funnel 15 is supported by rollers 19 on an annular guide 20. In the lower part of the funnel 15 a cam 21 is attached, acting upon turning on limit switches 22 - 24 funnel stops for reloading the material through the hatch 16 into the corresponding bunker (12-14),

Under the discharge part of the bunkers, belt conveyors are installed - feeders 25-27J having drives 28-30, 3 discharge parts of the bunkers have exit windows 31, the output sections of which are vertically adjustable by means of the gate 32,

The drive drums 33 of belt conveyors - feeders 25 - 27 are located above the tank. Devices for supplying components 34 of weight dispensers 35, each of which is intended for cyclically dosing portions of the corresponding component of the mixture (for example, for concrete, sand, cement)

Dispensers 35 are located on three sides of Primka 36, in which the bucket 37 (for receiving the withdrawn components) skip lift 38, which loads the material into the mixer 39, located on the platform 40, Skip lift 38 has a drive 41 , Under the mixer there is a platform for entry for loading vehicles 42, On site 40 there is a control panel 43,

The dispensers 35 consist of a frame 44, supports 46 mounted on racks 47. On one side of the 44, a receiving container 34 is fixed, having an inclined angle of 60 D1 to more than 48, and in its front vertical wall 49, it is fixed in its lower part on the supports 50 the valve 51, the supports 50 are fixed on the side walls 52 of the container 34, the valve 51 is rigidly fixed on the axis 53, on which the levers 54 are mounted on the sides, on which the rollers 55 are fixed, supported by the action of the springs 56 on the pl.skke copiers 57, fixed on the side walls - Xsb 58 pull out tray 59, located about 48 under the bottom of the receptacle 34,

Tray 59 covers the bottom of tank 34 and can be moved by pa. Rally bottom forward in working position. Tray 59 contains rollers 60 moving along inclined guides 6 1. The chute is moved by a pneumatic cylinder 62 controlled by an air distributor 63.

Limit switches 64 and 65 are installed on the guides for switching the air distributor 63 to the extreme positions of tray 59.

On the other side of the frame 44, the counterweight 67 is mounted on the movable carriage 66, the carriage 66 contains rollers 68 moving along the guides 69 by means of a driving screw 70 and a nut 71 by means of an actuator 72.

The carriage 66 is secured with the flag 73, which interacts with the dose sensors 74–77 that are installed and in series with a certain distance on the frame 44.

3, the control panel 43 for the installation of the preparation of a multicomponent mixture has keys 78 for selectively connecting one of the dose sensors (74–77) of the dispensers 33 to the control system.

On both parts of the frame relative to the axis of rotation, stops 79 and 80 are installed, and on the uprights 47 there are end switches 81 and 82,

On the frame 83 of the skip lift 38 in the upper and lower parts of the installed limit switches 84 and 85 of the local positions of the bucket 37.

The key 43, time switch 87, electromagnetic pneumatic distributors 88 pneumatic cylinders are installed in the remote control 43

Ditch 9 valves 4, Timer 89 turning off the mixer 39.

On the frame 83 of the skip lift 38, a mine guard is mounted, 89 inside which the bucket 37 is moved. 3 of the upper transshipment and bottom part of the 84 of the skip lift is installed, dust pumps with exhaust aspiration ducts 90 and 91, which are used to extract the dust of the material, When the bucket is loaded and the material is unloaded from the bucket 13, the mixer 39. Dust from the shaft is sucked through a bag filter into a dust collector (not shown).

The apparatus for preparing a multicomponent mixture works as follows.

1a to the control panel 43, key 86 connects one of the position sensors (22-24) of the key 15 and key 76 to the control circuit, the corresponding dose metering sensors 35. When the unit is turned on, the funnel 5 is set to the required position by the actuator 18 and stops opposite the loading door 16 of the relevant storage bin (12-14). When rotating the camcorder 15, the cam 21 pushes, for example, the sensor 23, which turns off the actuator 18, then the belt conveyor 11 and the air distributor 88, which supplies air 13 to the pivot cylinder 9, turn the valve 4 and the material determined with a layer of funnel 3, through the cross section of the window, through the cross section of the window, by means of the conveyor belt 11 is fed successively to the corresponding storage bin 12-14.

After filling the storage hoppers, the mixture is prepared. Each of the weighing dispensers 35, in the control of the composition of the prepared mixture (brand of concrete or concrete), is adjusted by the operator to the appropriate dose of the component, the corresponding portion sensor (74 - 77) is connected with the selective key, the actuator 72 turns on, while rotating the screw 70, the carriage 66 moves along the guides 69 and when the flag 73 is applied to the associated sensor, the actuator 72 is turned off and the counterweight 67 is mounted on the corresponding outlet L relative to

the supports 46 define a set of necessary

component doses,

In an uncoupled arrangement, the sliding trays 59 of the dispensers 35 are located under the bottom 48 of the tank 34, and the stop 79 acts on the end switch 81, In this position, the rods of the pneumatic cylinders 62 are retracted.

When the metering unit 35 is provided with Q, when the end switch is activated by blocking and alarming on the control system 43, the bucket 37 of the skip lift 38 turns on the drive 41 when the switch 36 is turned on, switches on the limit switch 84, which turns off the drive 41 and gives the enabling power. cash on switching off the drives 28 - 30 belt feeders 25 - 27, Mix components from

The driver 64 turns off the air-distributor 63 and sends an information signal to the control unit 43 of the control unit 43 that the dispenser 35 is ready for the next 15 portions of the material and allows the drive 41 of the skip lift 38 to turn on. After loading the doses of materials from the tank 34 into the bucket 37 frame 44 dispenser 35 under

bins 12-14 tape feeders -2o are turned by the action of the counterweight 67 into the containers 34 of the dispensers 35, each of which is pre-set at a certain dose. When the tank 34 is filled with the appropriate amount of material, the frame 44 of the dose 25 of the stopper 35 begins to turn around the support 46, outweighing the counterweight 67, the stop 80 acts on the on-off switch 82, which turns off the drive through the control unit (28) time 87 and the electromagnet of the air distributor 63, which delivers air into the cavity of the cylinder cylinder 62, extending the tray 59 from under the bottom 48 of the container 34 to the position of the overlap of the bucket 37 and directing the material to be dumped directly into the bucket 37 skip lift 38. When chute 59 moves down, kula 57 frees levers 54, which, by the action of springs 56 and material, rotate flap 51 around supports 50, and material from capacity 34 along chute 59 is gravitationally sent to bucket 37.

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with respect to the support 46, the stop 71 acts on the switch 81, which gives a permissive signal to activate the drive of the feeder (25-27). After the trays 50 of all three metering units 35 return to their initial position, the information signals from the limit switches 64 are summed up in the control unit (43), from which the control signal is turned on for the actuator 41 of the skip hoist 38, the bucket 37 loaded with material rises and in the copier part the frame 83 is rotated by tilting the material from the bucket 37 into the mixer 39. In the extreme upper position, when the bucket of the skip lift 38 acts on the limit switch 85, the drive 41 is turned off and the mixer 39 is turned on and the drive Time 87, From the limit switch .85, an authorization signal is also given to turn on the drives (25,29,30), belt feeders. In dispensers 35, the next portions of the components are mixed into the mixture.

eight

In the flap 51, soft sealing rubber is attached on the inner side, which hermetically closes the discharge opening of the container 34 along the perimeter, eliminating the possibility of spilling of the meikofraktsionny component of the mixture (fine sand, cement, etc.)

When reverse movement of tray 59,

The driver 64 turns off the air distributor 63 and the control unit 43 of the console 43 is given an information signal about the readiness of the dispenser 35 to the set of the next batch of material and the enabling signal to turn on the drive 41 of the skip lift 38. After loading the doses of materials from the tank 34 into the bucket 37 frame 44 dispenser 35 under

about

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five

with respect to the support 46, the stop 71 acts on the switch 81, which gives a permissive signal to turn on the drive of the feeder (25-27). After the trays 50 of all three metering units 35 return to their initial position, the information signals from the limit switches 64 are summed up in the control unit (43), from which the control signal is turned on for the actuator 41 of the skip hoist 38, the bucket 37 loaded with material rises and in the copier part the frame 83 is rotated by tilting the material from the bucket 37 into the mixer 39. In the extreme upper position, when the bucket of the skip lift 38 acts on the limit switch 85, the drive 41 is turned off and the mixer 39 is turned on and the drive Time 87, From the limit switch .85, an authorization signal is also given to turn on the drives (25,29,30), belt feeders. In dispensers 35, the next portions of the components are mixed into the mixture.

Time relay 87, which is configured to overload a portion of the material from tank 34 into bucket 37, switches pneumatic cylinder 62 to reverse flow through pneumatic valve 63. Tray 59 extends below bottom 48 of tank 34.

During the reverse movement of the tray 59, the copiers 57 act on the rollers 55 and turn the levers 54, the axis 53 and the flap 51, stretching the spring 56, closing the container 34,

Time relay 89 at the end of the material overload through the control unit turns on the drive 41 for lowering the bucket 37 in at wet 36 to set the next portion of the mixture. The bucket 37, dropping in on wet 36, acts on the limit switch 84, which turns off the drive A1 and issues an information signal to the control unit o; readiness bucket 37.to overload materials from the dispensers.

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Claims (1)

Claim Installation for preparing a multicomponent mixture, containing a 20-ty capacity container for storing components, a device for feeding them into the skip elevator bucket with a device for moving trays to the working position, a mixing device, which differs in that, in order to increase productivity, the component supply device is provided with a shutter forming the front wall of its housing and pivotally mounted on the side walls by means of an axis, each tray is made with a sliding section, and the device for moving the tray in the working position is made in the form of copiers fixed on the side walls of the sliding section of the tray, in contact with the last rollers and spring-loaded levers, moreover, a roller is fixed at the one, th end of the lever, and the other end of the lever is fixed to the damper axis. figure 2 <rig. 3 5-6 of FIG. 4 I fig. S FIG. 6 7. Β ^ Γ »3ζ - __ _? * ° Σ 5 ο · rr-tfi W-D6 YY && YYATS. - “ FIG. 8 77 76 j) ϊΐ ^ Fig. AND