RU2346744C2 - Mobile disintegrator plant - Google Patents

Abstract

FIELD: engines and pumps.

SUBSTANCE: invention may be used for processing of cements and other components of cementation mixtures applied in cementation of oil wells, and also in construction, chemical, mining and other industries for production of activated materials. Mobile disintegrator plant comprises activator with the following components joined via couplings - electric motors, bunker-feeder, then receiving tray with loading bucket chains, magnet separator, auger hoppers, unloading unit, power supply system installed on the common frame. Frame has the following components installed on it - bunker-feeder, cyclone-unloader connected to cyclone-dust separator, under which dust collector is installed, fan for generation of double-phase flow in activator, and rotary valve and bucket chain are used for supply of finished product from cyclone-unloader to bunker-feeder. All units of mobile disintegrator plant are connected between each other with the help of such pipelines as product pipeline, mixture pipeline, air duct, dust duct. Magnet separator is installed under receiving tray at bunker-feeder, unit of unloading comprises rotary valve with drive and joined mixer, to one end of which compressed air is supplied, and sleeve for supply of material for unloading is connected to the other, at that inside bunker-accumulator and bunker-feeder aeration facilities are installed to facilitate material unloading, and power supply system includes panel that consists of body fixed in frame, inside of which control unit is contained that comprises units of power supply, control and monitoring, and also operator chair, oil heater and lamp are available.

EFFECT: higher efficiency of crushing, lower power inputs in plant operation, higher reliability, improvement of operation and ecological conditions in place of works performance.

3 cl, 4 dwg

Description

The invention relates to equipment for grinding various materials and can be used for the processing of cements and other components of grouting mixtures used in cementing oil wells, as well as in the construction, chemical, mining and other industries to obtain activated materials.

Known stationary disintegrator installations containing, in addition to the disintegrator, additional devices, namely: a cyclone, fan, filter, heat exchanger, connecting pipes, sensors of pressure, temperature, power consumption, etc. [1, 2, 3, 4].

The closest in technical essence to the present invention is a mobile disintegrator unit (PDA) D-6911 with a diesel drive on the chassis of the KrAZ-257 truck, designed for mixing, grinding and activation of grouting materials, drilling fluids, construction and other materials used in drilling wells. The unit is adapted to work in stationary and field conditions and can be used in all cases when it is necessary to grind and mix cements, fillers, clay powders, etc. at the place of consumption. [5]. The mobile disintegrator unit is designed to work in the open air at an air temperature of minus 35 ° C to + 50 ° C.

The general properties of PDA and mobile disintegrator installation (PDU) are compactness and mobility, i.e. the ability to quickly relocate the installation to the place of work when drilling wells or other construction and other works.

PDA D-6911 consists of a KrAZ-257 truck, on the chassis of which a base frame with a platform is mounted, on which the following mechanisms and components are placed: a B2-450 diesel engine, a disintegrator with a gearbox and a magnetic separator, a hopper installation with metering and loading augers, receiving hoppers (trays), belt conveyor, unloading unit, electrical power system.

The disintegrator is the main node of the PDA. In the disintegrator, grinding, activation and mixing of the starting materials take place, which enter the disintegrator from the hopper with the help of metering screws and a conveyor belt.

The disintegrator drive is carried out from the diesel engine by means of a reducer, in the case of which, apart from the gears of the reducer, a system of disintegrator shafts is placed. The cage of the disintegrator together with the lid, which is attached to it by means of a two-hinged connection, forms a grinding chamber in which the baskets are placed - the working body of the disintegrator. To reduce the wear of the casing, it is protected from the inside by a replaceable lining - a steel ring. An outlet pipe is attached to the upper part of the casing, through which the processed material leaves the disintegrator; an unloading unit is connected to the outlet pipe. In the middle of the lid there is a hole to which from the outside there is connected a chute for loading the processed material into the disintegrator, and from the inside there is a tray for directing the material between the baskets. In the upper part of the lid under the gutter, a magnetic metal trap (magnetic separator) is attached.

This device has several disadvantages, the main of which are:

- In the PDA, loading is carried out through the upper hole (for crane loading from containers) or using loading augers on both sides. The upper part of the screws inside the drive hopper. The receiving tray is attached to the bottom. There is no magnetic separator in the loading line. When transporting the unit, the lower parts of the screws are lifted and placed on the appropriate supports. The receiving trays are removed and placed on the fence of the platform. Additional time is required for the installation and dismantling of these devices in preparation for the PDA and when moving to another place of work.

- The presence of only one two-section loading hopper;

- The absence of devices such as a fan, a cyclone-unloader, a cyclone-dust separator, a dust collector, which leads to increased dustiness of the environment during operation of the installation, i.e. to the deterioration of the environmental situation at the place of the indicated work.

- The lack of a remote control for ease of management and operation.

The objective of the proposed technical solution is to reduce energy consumption, increase the reliability and quality of operations, improve operating conditions.

The problem is solved in that the mobile disintegrator installation (PDU) contains an activator mounted on a frame with a carrier with electric motors connected to it via couplings, a hopper feeder, a hopper drive, a noriya from the receiving tray to the hopper feeder, two screw batchers, a cyclone unloader, cyclone-dust separator, fan, dust collector, elevator to the storage hopper, airlock with a mixer and a feed hose to the discharge line, console, while:

- The remote control contains two hoppers: a hopper-feeder and a hopper-drive instead of one two-compartment loading hopper in a mobile disintegrator unit D-6911;

- In the remote control, a noria (vertical) with ladle scoops is used to load the hopper-feeder, using a receiving tray and a magnetic separator.

- In the remote control, screw feeders feed the source material into the activator tray. In the PDA, the screw feeders under the lower part of the hopper feed the raw material to the conveyor belt with adjustment (dosage) in the range of 2.0-20.0 t / h, with an accuracy of ± 10% by weight.

- In the remote control, a magnetic separator is installed under the pick-up tray near elevator I (to the hopper-feeder), and in the remote control the magnetic separator is installed in the upper part of the disintegrator cover above the tray.

- In the product supply line after the activator (disintegrator), a cyclone-unloader with a cyclone-dust separator and a fan is used, which provides the necessary vacuum at the outlet of the activator. All these nodes for transporting a two-phase mixture (product with air) are interconnected by a piping system (air ducts, food product, mixer, dust collector, and there is also a dust collector for collecting the dust fraction of the product.

- In the discharge line from the storage hopper, a lock gate with a mixer is used, into which compressed air is supplied, which enables pneumatic transportation of the finished product through the supply hose to the required height for further use in mixing units for the preparation of drilling cement slurries or for other purposes.

- In the remote control, all components and assemblies are mounted on a common frame with a carrier, which allows you to transport the installation as a drag over short distances, using a carrier attached to the frame, and transport the installation over long distances, using rigging brackets and special suspensions by road on a trailer platform, by rail on a platform, as well as an MI-26 helicopter on an external sling.

- Thus, the remote control has sufficient autonomy and mobility if it is necessary to relocate it to another place (oil fields), using it when drilling oil and gas wells or other construction and other works.

The proposed technical solution is illustrated by an example of its implementation in the accompanying drawings:

Figure 1. General view of the remote control (protective panels not shown).

Figure 2. Location of the main structural elements of the remote control. Front view, right view and top view.

Figure 3. Location of the main structural elements of the remote control. Left view, rear view.

Figure 4. The scheme of operation of the remote control.

The remote control contains an activator 3 (FIGS. 1, 2, 3), a hopper-feeder 2, a hopper-drive 5, a noriya I 1, a noriya II 4, a valve (2) 8, a mixer 9, an engine M1 10, an engine M2 11, a magnetic separator 12, receiving tray 13, screw batcher I 14, screw batcher II 15, tray 16, cyclone dust separator 17, cyclone unloader 18, remote control 19, fan 20, lock gate 27, mixer 28, supply hose 29, air ducts 21, 22, a dust collector 23, a food product 25, a dust collector 26 mounted on a frame 7 with a carrier 6.

The operation scheme of the remote control is shown in figure 4.

The principle of operation of the remote control is based on the mechanical grinding of the grains of the starting components with their simultaneous mixing

The initial components are loaded into the receiving tray 1. Under the receiving tray is a magnetic separator 2, which separates foreign objects from metal-magnetic materials. Using elevator I 15, the initial components enter the two-section hopper-feeder 14.

Under each compartment of the hopper-feeder there is a manual valve 3. From the hopper-feeder, the components with two screw batchers 4 are fed into the activator 5. In the activator, the initial components are pulverized with their mixing. In addition, a two-phase flow is formed in the activator, consisting of particles of the finished product and atmospheric air. The air in the activator is sucked in by the fan 13. The two-phase stream obtained in the activator enters the unloading cyclone 11. There the solid particles of the finished product fall out of the dust-air mixture. Next, the finished product using the lock gate 6 and elevator II 10 enters the storage hopper 9.

The air from the cyclone unloader enters the cyclone dust separator 12, is finally cleaned and emitted into the atmosphere by a fan.

The finished product is unloaded from the storage hopper as it is filled. To unload the finished product from the storage hopper, a compressed air supply to the remote control from an external source is required. The finished product is issued from the remote control in the form of a dusty air mixture. The formation of this mixture is carried out in a mixer, where, on the one hand, the finished product is supplied with a lock gate II 8, and, on the other, compressed air. On a flexible sleeve, the mixture of the finished product with air can be raised to a height of up to five meters.

All remote control units are controlled and controlled by the operator from the control room. The control room, like all remote control units, is located on the frame.

If necessary, aeration of the products in the bins by means of aeration of the installation 30.

To protect open cavities and remote control units from atmospheric precipitation, protective panels are provided. The panels are made of sheet material with stiffeners and are fixed around the perimeter by detachable connections to the remote control frame. The panels on the right and left sides of the remote control have doors for access to the activator and other internal nodes when performing repair, maintenance and maintenance of the remote control.

For lifting and transport work when loading a crane onto a railway platform or an automobile platform-trailer, the remote control kit includes cable suspensions laid in a container near the storage hopper. It is also envisaged to transport by helicopter using a cable suspension for 4 rigging bracket assemblies on the upper part of the remote control mounted on the feeder hopper and drive hopper.

Information sources

1.AC SU 1044328 A, 12.06.81.

2. AC SU 1310022 A1, 11/25/83.

3. RU 2052293 C1, 04.16.92.

4. Installation based on the DESI-15C disintegrator manufactured by AS DESINTEGRAATOR (www.desi.ee/en).

5. N.Kh. Karimov and others. Grouting mixtures for wells with abnormal reservoir pressure, Moscow, Nedra, 1977.

Claims (3)

1. A mobile disintegrator installation comprising an activator with electric motors connected to it via couplings, a hopper-feeder, a receiving tray with loading elevators, a magnetic separator, screw batchers, an unloading unit, an electrical power system mounted on a common frame, characterized in that the frame is installed storage hopper, cyclone-unloader connected to the cyclone-dust separator, under which there is a dust collector, a fan for forming a two-phase flow in the activator, and for supplying the finished product A lock gate and a noria are used from the unloading cyclone into the storage hopper, and all the units of the mobile disintegrator installation are interconnected using such pipelines as a food product, a mixer, an air duct, a dust duct, and a magnetic separator is installed under the receiving tray near the hopper-feeder, node the discharge contains a lock gate with an actuator and a mixer attached to it, to which compressed air is supplied to one end, and a material supply hose for unloading is connected to the other end, while inside the hopper Aeration device and hopper-feeder are equipped with aeration tools to facilitate unloading of material, and the power supply system includes a control room, consisting of a housing mounted on a frame, inside which contains a control unit, including power supply, control and monitoring units, as well as an operator’s chair, an oil heater and lamp. 2. Installation according to claim 1, characterized in that to protect against atmospheric precipitation and create comfortable working conditions, the open cavities of the installation are equipped for closing with protective panels with the necessary number of doors and hatches for access to the installation nodes. 3. Installation according to claim 1, characterized in that it has rigging assemblies-brackets attached to it and a set of cable suspensions laid in a container for the possibility of helicopter transportation of the entire installation, as well as crane loading onto an automobile trailer platform or onto a railway platform for transportation of the installation by road or rail to another place of work or transportation by drag, using a carrier attached to the frame.

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