RU2323339C2 - Face equipment assembly - Google Patents

Abstract

FIELD: mining, particularly upward underground mining of flat-lying mineral seams by longwalls with horizon-oriented deposit preparation pattern.

SUBSTANCE: face equipment assembly comprises enclosing powered support sections hydrocutting machines, the first and the second line hauling platforms and two coal-cutters. Hydrocutting machines are provided with executive tools with hydrocutting heads to cut large mineral blocks from mineral face zone by means of ultrahigh-pressure water. Hauling platforms deliver the cut mineral blocks to two excavations adjoining longface along two parallel lines including V-shaped guiding means with the use of mine hoisting winches. Mineral blocks are partly adapted to fill goaf for mounting strip creation. Coal-cutters are adapted to cut slots parallel to seam plane from longface center to edges thereof. Each coal-cutter comprises electric motor, hydraulic insert, supply part, which provides coal-cutter movement in working and idle states and brings three cutting members into operation. Operation of all cutting members is provided by means of single vertical shaft rotated by common drive. Coal-cutter has rollers for coal-cutter movement so that coal-cutter adjoins face front, namely coal-cutters moves along ground from face side and along V-shaped guiding means secured to powered support section base from opposite face side. Guiding means has horizontal working surface and vertical side flange. To provide coal-cutter stability upper coal cutter ski rests upon vertical panel as it slides along it. The vertical panel is installed on covering member cantilever and extends along the full length of longface.

EFFECT: increased output, operational and environmental safety, as well as operational efficiency.

7 cl, 17 dwg

Description

The invention relates to mining and can be used in underground mining, occurring in shallow formations of medium power.

Known treatment mechanized complexes for the development of shallow coal seams of medium power KM-138, KM-142, KM-143, KM-144, KM-145, KM-146, KM-171, KM-172, KMK-500, IMK85 and others . (I). The equipment of these treatment facilities includes powered roof supports, excavation and delivery vehicles. The development of the strata is carried out by lavas moving along the strike, rise or fall of the strata. For the operation of mechanized supports, the hydraulic energy of the emulsion is used, which is supplied to the lava along the emulsion lines from pumping stations located on the transport mine working adjacent to the lava.

The closest is the equipment for underground mining by the Kariman method (see RF patent No. 2269003 C2, E21C 41/16, 2006). Fossil mining is carried out in large blocks using cutting and water-cutting machines. In the process of cutting blocks, metal frames are introduced into the slotted slots. Delivery of the extracted blocks is carried out on delivery trolleys along the channel, corner or rail guides using traction cargo winches located in the berm. Issue of blocks is carried out on both transport and ventilation mine workings adjacent to the lava. The blocks are loaded onto delivery trolleys on a board that has been previously opened from the bottom of the bottom, while the position of the delivery trolleys is fixed by spreading the hydraulic stands stationary connected to the delivery trolley. The blocks are reloaded onto vehicles adjacent to the lava without being turned around. As a vehicle, twin wheel platforms are used with the locomotive moving along the middle rut. Lava fastening - individual or mechanized bottom-hole hydroficated supports. Roof management is carried out by partial laying of the developed space with fossil blocks. Fossil blocks are cut in several rows. At the same time, the thickness of the cut blocks is two times less than the depth of cutting the cracks near the soil and the roof of the formation. The thickness of the lower and upper slots cut by the cutting machines is 140 mm. Before the frame latches, the slots are cleaned with a PSh-150 mine vacuum cleaner, and the bayonet is stored in containers, which are located in the first compartment of the bottomhole space along the entire length of the lava. The loading of blocks on delivery trolleys is carried out with the help of hydraulic hoists, stationary mounted on trolleys. Unloading of bogies from blocks on adjoining workings is carried out by pulling the blocks by sliding on metal frames along the surface of the bogie due to the pulling force of a mine cargo winch transmitted to the block with a cable draped to it. The prototype did not address the placement of electrical cables to moving cutting machines and emulsion lines to moving hydraulic cutting machines and hydraulic supports. The lining sections have six hydroracks permanently connected to the lining base. Lava fastening provides for four compartments in the bottomhole space, including two compartments for two delivery lines. The roof is controlled by partial laying of its cut-out blocks. At the same time, the movement of blocks into the worked out space is also carried out using hydraulic hoists without cleaning the hydroracks. To move the blocks through the guides, flooring is laid on them.

In the invention, considered as a prototype, there are a number of disadvantages and a number of unresolved issues.

So, when cutting fossil blocks in several rows after cutting the upper slit, the blocks of the fossil of the second row, under the influence of their weight, sit directly on the soil. Therefore, it is not possible to bring the frame under them and pull out the blocks of the second row from the array. In this regard, the cutting of blocks must be carried out without dividing into rows with the input of the frame to the entire depth of the cut bottom slit.

The height of the cut blocks of the fossil is less than the thickness of the developed layer by only 28 cm - the sum of the thickness of the cut holes at the soil and the roof of the layer. With such a block height, it is problematic to create an acceptable block transportation along the lava on the delivery trolleys, since it is necessary to provide space in height for the thickness of the top or the roof support, the thickness of the base of the lining, the height of the guides, wheels and the body of the delivery trolley, and the roofing, especially in the second delivery zone lines. The most acceptable way to create height-free space is to cut through the middle gap in the middle of the formation thickness and first excavate the upper block, then the lower one.

The scope of work for clearing the bayonet from slots is very large and reaches 0.5 tons per linear meter of lava length. Therefore, it is advisable that the bar issued from the slots from the slots be directed directly into the container. To do this, the storage tank for the bayonet must be moved together with the cutting machine.

Cutting gaps near the soil, roof and in the middle of the thickness of the reservoir is better grouped in one cutting unit, which will greatly simplify the technology and organization of work in the face.

Cutting the transverse cracks with a hydraulic cutting machine is best done after cutting the cracks near the soil and the roof of the formation. Then it is possible to immediately introduce the executive tool for cutting the transverse cracks into the previously cut slots and, when it is reversed by the action of the side hydraulic jets, cut the transverse cracks. This will significantly increase the productivity of the process.

In this prototype, the issue of placement in the bottomhole space and movement during operation and during the movement of the sections of the lining of the electric cables of the engines of the cutting machines and the emulsion and water lines of the hydraulic cutting machines is not resolved.

The issue of transporting blocks of a fossil small fortress that are destroyed when moving is also not resolved; no technology has been developed for raising and lowering fossil blocks during handling operations and warehousing.

The use of hydraulic hoists for loading blocks of fossil is problematic, since the existing hydraulic hoist design is very bulky and heavy and is suitable for lifting loads, rather than moving blocks horizontally. The installation of such hydraulic hoists on a delivery trolley is impractical, and the development of another technical solution is necessary.

The weight of the blocks of fossil issued from the face is quite large (up to 20 tons or more). With this weight of blocks, the movement of delivery trolleys with cargo using mine cargo winches is possible only in the horizontal direction. But then, when unloading delivery trolleys on the side mine workings, the tractive effort of mine freight winches may not be enough to move heavy fossil blocks by sliding on metal frames along the surface of the delivery trolley. It is necessary to develop special powerful unloading equipment permanently installed on a delivery trolley.

The aim of the invention is the improvement of technology and equipment for underground mining of minerals, which lie in shallow formations of medium power, providing high productivity, safety, environmental friendliness and economic efficiency of its work.

The task is achieved by the fact that in this invention a comprehensive composition of the necessary equipment is presented, the work of which is mutually linked both structurally and technologically. The fossil is developed by a treatment mechanized complex, moving in the process of production on the uprising of the reservoir. A fossil is cut from an array of large rectangular blocks. Cutting blocks of fossil begins with the work of two cutting units moving from the middle of the lava to both ends. The unit cuts at the same time three slots parallel to the formation plane: the lower one at the boundary of the formation with the soil, the middle one in the middle of the thickness of the formation and the upper one at the boundary with the roof.

Slots are cut by three cutting bars of the cutting unit to a depth of 2.2 m with a slot thickness of up to 14 cm. All cutting bars are driven by a single vertically mounted shaft that receives rotation from a common engine. The working and idling of the cutting unit is carried out by moving it along the lava with the help of the supply part connected to the engine through the hydraulic insert.

The shaft issued by the cutting bars from the cut through the upper and middle slots is dumped into a container moving with the cutting unit. The shaft issued by the cutting bar from the lower slot is sucked in by a vacuum cleaner permanently mounted on the unit and is also dumped into a movable container. The volume of the tank is designed to accept the entire bayonet from all the slotted slots, per length of one lining section, equal to 6.5 m. The length and width of the tanks for accumulation and delivery of the bayonet are assumed to be the same with the corresponding dimensions of the mining blocks. This makes it possible to use the same technology for loading containers filled with a bayonet onto delivery platforms and for their transshipment from platforms at onboard mine workings as for mining blocks. Empty containers are pre-delivered to the lava on the 1st line delivery platforms and unloaded one under each lining section in its middle part from the side in the direction of the cutting unit. When the unit approaches along the length of the lava to the next section, the container loaded with the bayonet is replaced with an empty one. At the same time, the loaded capacity is also left in the 1st compartment of the bottomhole space in the middle of the space under the support from the side closest to the direction of movement of the unit. Replacing containers is done by undocking the grips of the unit with the locks of the loaded tank and docking them in the process of moving it to the empty locks. The movement of the tank is carried out on the rollers along the corner beams laid in the 1st compartment from the side opposite to the bottom. The movement of the cutting unit is also carried out on rollers. At the same time, rollers from the bottom side move along the soil, and from the side opposite from the bottom along the corner guide.

Following the movement of the cutting unit, metal pallets are laid in the lower and middle slots. The pallets laid under the mining blocks have a width and length corresponding to the dimensions of the mining blocks. Pallets placed under the blocks intended for laying in the worked out space correspond to the sizes of these blocks. The width of the pallets of both types, as well as the width of the blocks of both types, is the same and equal to the depth of capture of the cutting bars of the cutting unit, equal to 2.2 m. The length of the blocks for different purposes is different. According to the conditions of transportation of mining blocks through mine workings on wheeled trolleys, their length is taken to be 2.6 m. The size of blocks along the length of the lava, intended for laying in the worked out space in order to reduce reserves losses, is taken to be half as small and equal to 1.3 m. these blocks are also taken half as long along the length of the lava. Thus, when laying pallets in the lower slot, the ratio is maintained: after two consecutively laid pallets under the mining blocks, one pallet is laid under the block for laying in the mined space. In the middle slot, pallets are laid only under the production blocks. Pallets for mining blocks are delivered to the lava together with empty containers for pits and unloaded for each section of lining in the required quantity. The pallets laid under the blocks, moved to the worked out space, are then removed from under the blocks and used in the next cycle of work.

After laying the pallets in this section, the cutting of the transverse cracks is performed. The transverse slots are directed perpendicular to the plane of the formation and the bottom of the face and are also cut to a depth of 2.2 m simultaneously over the entire thickness of the formation. Transverse cracks are cut at the joints between pallets with special executive tools of hydraulic cutting machines. The transverse slots are cut with a stationary hydraulic cutting machine by the return movement of the hydraulic cutting tool. Hydro cutting is carried out with ultrahigh pressure water up to 300 MPa. Water acquires ultrahigh pressure in the hydraulic booster located in the body of the hydraulic cutting machine. Water is supplied to the hydraulic booster from the highway laid along the lava and located in the upper niche under the roof support in the 2nd compartment. Under each section of the lining there is an outlet from the highway with a fitting. Before cutting through the transverse slots, a sleeve is connected to the fitting to feed water from the hydraulic booster. After cutting through the transverse cracks in this area, the hydraulic booster sleeve is disconnected from the trunk fitting. The energy for the operation of the hydraulic booster is the hydraulic energy of the emulsion, which the hydraulic booster receives from the pressure emulsion line, and gives the spent emulsion back to the drain line. The emulsion lines of the hydraulic cutting machine, cutting through the transverse slots, are placed together with the water line in the upper niche under the roof support in the 2nd compartment. From the mains, the emulsion enters the hydraulic booster through the sleeves, which, like water, are connected to the corresponding fittings, and after cutting the transverse slots are disconnected.

The cutting of the rear vertical slit is carried out by the 2nd hydraulic cutting machine in the area where the cutting of the transverse cracks is completed. The cutting of the rear vertical slit is carried out with continuous movement of the hydraulic cutting machine. The hydraulic cutting tool for cutting the back slit is similar to that used for cutting the transverse cracks, but in this case it is buried in the array by 2.2 m and moves with the hydraulic cutting machine. The device of the 2nd hydraulic cutting machine is similar to the first. The only difference is in the way the emulsion and water are obtained from the mains. The emulsion pressure and drain lines and the water supply line to the hydraulic cutting machine for cutting the rear vertical slit are located in the upper niche of the 1st compartment under the roof support. Since the cutting of the back slit is carried out with continuous movement of the hydraulic cutting machine, its emulsion sleeves and a hose for water supply are in constant connection with their mains. When moving the hydraulic cutting machine in the forward or reverse direction in a niche, the corresponding re-laying of the lines is carried out according to the same method as the cable layer works in the existing mechanized treatment plants. The width of the niches for placing the lines of hydrogeological machines is 2.2 m, i.e. the size of the movement of the sections after the working face, which ensures defect-free movement in the niches of the mains in the movable sections of the lining.

The extraction of fossil blocks from the array and loading onto delivery platforms is carried out in two stages. Pre-loading is carried out on delivery platforms of the 1st line of tanks with a bayonet from slotted slots. The delivery of tanks with a bayonet from the lava on the 1st line delivery platforms is combined with the delivery to the lava and unloading of empty tanks and pallets for mining blocks in the 1st compartment bottomhole during the reverse movement of the platforms after unloading.

The extraction of fossil blocks from the array begins with blocks of the 2nd level using hydraulic rams. Level 2 blocks are located in the bottomhole zone array between the upper and middle slots. After cutting the back vertical slit with the 2nd hydraulic cutting machine under the influence of its own weight, the cut out blocks of the fossil were finally separated from the rest of the array, and they lay tightly on metal pallets with the formation of free space between the upper surface of the 2nd level blocks and the formation roof up to 28 see. The area where the excavation of blocks of the 2nd level should be carried out is occupied by the hydraulic ram. The hydraulic actuator performs the following operations: complete pulling of level 2 blocks from the array to its 2.2 m wide overlap corresponding to the width of the blocks, then lowering the blocks down to the height level of the delivery platform. Loading of blocks is carried out by loading devices of a sufficient platform. After the loading of the blocks of the 2nd level is completed, the hydraulic actuator proceeds to the next section after the working cutting unit and hydraulic cutting machines, and in this section the blocks of the 1st level are removed and loaded onto the delivery platforms of the 2nd line. Level 1 blocks are located at the bottom of the bottomhole array between the middle and lower slots. The extraction of blocks of the 1st level and their loading on the delivery platforms of the 2nd line is carried out using loading devices permanently installed on the platforms.

After the extraction of blocks of the 1st and 2nd levels from the array before loading onto the platforms, when they are still in the 1st compartment of the working bottom-hole space, cable and cover (if provided) equipment are put on the fossil blocks. Cable and case equipment is completed and delivered to the lava together with metal pallets and unloaded in the 1st compartment. Unloading equipment along with pallets and empty containers is carried out in front along the front of the movement of the cutting unit along the entire length of the lava.

The movement of the delivery platforms to the side workings for unloading is carried out along the angular guides in the horizontal direction with the help of mine cargo winches located in the berm along the line of movement of the delivery platforms. The number of delivery lines is two. The first delivery line ensures the delivery of fossil blocks of the 1st level and capacity with a bayonet from slotted slots from the lava to both adjacent mine workings. The second delivery line, located in the 3rd compartment of the bottomhole working space, provides the issuance of blocks of the 1st level also on both side mining. Two delivery platforms circulate on each delivery line. One of the platforms delivers blocks to the left adjacent mine, the other to the right. The delivery platforms move back after unloading the blocks using shunting winches mounted on wheeled trolleys and located at the beginning of the excavation cycle in the middle of the lava. During the operation of the shunting winch to ensure the movement of the empty delivery platform, the wheels of the trolley are in a braked state. As blocks of the 2nd level are delivered by first-line delivery platforms, after moving the front of the hydraulic ram from the middle of the lava, the first-line shunting winches also move to the sides, thus freeing the working space of the second compartment from the stretched cables for loading the blocks 1st level to 2nd platform delivery platforms. Similarly, as the front of the loading work moves and the 1st level blocks are delivered to the 2nd line delivery platforms, the shunting winch of the 2nd delivery line moves after it, releasing the 3rd compartment working space from the stretched cables to move to the worked out space cut blocks for its partial bookmark.

Partial laying of the worked-out space by cut-out fossil blocks as a way of controlling the roof is used to ensure that the roof is planted by smoothly bending without breaking, to prevent stress concentration in rocks, their outfalls in the bottom hole, and to reduce the load on the bottom hole. Blocks of fossil for laying in the mined-out space are moved on metal pallets from top to bottom along the dip of the formation along the space of the side compartments of two adjacent lining sections. Moving is carried out using a special loading device mounted on a wheeled trolley moving along the corner guides of the 2nd delivery line.

The invention is illustrated by means of drawings, each of which shows the following:

Figure 1 - section of mechanized hydraulic lining (axonometry): 1 - hydrostability of the 1st line; 2 - hydrostations of the 2nd line; 3 - hydrostations of the 3rd line, 4-base lining; 5 - overlap; 6 - hydraulic jacks for the transverse movement of hydroracks; 7 - hydraulic jacks for frontal movement of the lining; 8 - a niche for a cable layer of a cutting unit; 9 - a niche for laying emulsion and water lines for a hydraulic cutting machine for cutting a rear vertical slit; 10 - sections of corner guides of the 1st delivery line; 11 - section of the corner guides of the 2nd delivery line; 12 - section of the corner guides of the 1st bottomhole compartment; 13 - a niche for laying emulsion and water lines for a hydraulic cutting machine for cutting transverse cracks; 14 - a niche for the oil supply line to the hydraulic splitters of the hydraulic cutting machine for cutting the transverse cracks, the hydraulic motor to move the hydraulic starter, the hydraulic motors of the loading devices of the delivery platforms and the hydraulic motor of the traction device to move the blocks into the worked out space; 15 - a niche for the placement of emulsion lines for hydroracks and jacks of the lining sections; 16 - a niche for a degassing gas pipeline; 17 - vertical panel to ensure stability when moving the cutting unit.

Figure 2 - cutting unit (front view): 18 - electric motor; 19 - hydraulic insert; 20 - supply part; 21 - lower cutting part; 22 - the middle cutting part; 23 - upper cutting part; 24 - cutting bar of the lower slit; 25 - cutting bar of the middle gap; 26 - cutting bar of the upper gap; 27 - case; 28 - guide ski; 29 - corner guide of the cutting unit; 30 - vertical drive shaft.

Figure 3 - operation of the hydraulic cutting machine for cutting through the transverse cracks, plan view: 31 - hydraulic booster of the hydraulic cutting machine; 32 - executive hydraulic cutting tool; 33 - flexible sleeve for supplying ultra-high pressure water from the hydraulic booster to the executive tool; 34 - sleeve supply of primary water from the highway to the hydraulic booster; 35 - emulsion feed hose from the pressure line to the hydraulic booster; 36 - sleeve for the issuance of the spent emulsion from the hydraulic booster to the drain line; 37 — transverse slots to be cut; 38 - cut transverse slots; 39 - the edges of the lower, middle and upper slits previously cut by the cutting unit; 40 - a cable for the movement of the hydraulic cutting mother's.

Figure 4 - operation of the Executive hydraulic cutting tool for cutting transverse cracks, profile view: 41 - hydraulic cutting head 2-sided side action; 42 - hydraulic cutting head unilateral lateral action; 43 - hydraulic jets; 44 - lower slit; 45 - the average gap; 46 - the upper gap.

Figure 5 - hydraulic actuator, axonometry: 47 - overlap for acceptance of fossil blocks of the 2nd level; 48 - telescopic hydrostatic retention retention; 49 - hydraulic jacks for the extraction of blocks of the 2nd level; 50 - spacer hydraulic struts fixing the position of the hydraulic actuator; 51 - hydraulic cylinders; 52 - blocks of a fossil of the 2nd level; 53 - blocks of the fossil of the 1st level; 54 - rods of hydraulic jacks for the extraction of blocks; 55 - sling beam; 56 - sling loops of pallets of mining blocks; 57 - rods of hydroracks; 58 - bushings of hydroracks.

6 is a design of a hydraulic jack for the extraction of blocks of the 2nd level, a plan view: 51 - cylinder; 59 - clip; 54 - stock; 62 - holder of a spacer hydraulic stand; 60 - a piston; 61 - valve inlet emulsion for moving the piston rod; 63 - extended position of the spacer; 64 - emulsion inlet valve for moving the housing of the hydraulic jack.

Fig.7 - loading on delivery platforms of the 1st line of blocks of the fossil of the 2nd level, profile view: 51 - block of the fossil of the 1st level; 52 - block fossil of the 2nd level; located on the ceiling of the hydraulic actuator in its lower position; 65 - delivery platform of the 1st line; 66 - overlapping hydraulic actuator; 67 - board of the delivery platform of the 1st line from the bottom side, folded to the floor; 66 - the left cheek of the pulley; 69 - the right cheek pulley; 70 - traction cable.

Fig. 8 is a metal pallet for mining blocks and cable equipment, a plan view.

Fig.9 is a metal pallet for mining blocks and cable and case equipment, a plan view.

Figure 10 - traction unit of the loading device of the delivery platform, a plan view: 70 - loading cables going to the drums from the chain hoists; 71 - drum, winding the cable during loading; 72 is a gear system for transmitting rotation from a drive shaft to a drum; 73 - drive shaft; 74 - hydraulic motor.

11 - loading blocks of the fossil of the 1st level on the delivery platform of the 2nd line, profile view: 53 - block of the fossil of the 1st level; 68 - the left cheek of the pulley block, slid with the pallet of the movable block; 69 - the right cheek of the tackle, stationary connected with the right side of the delivery platform; 70 - traction cable; 75 - delivery platform of the 2nd line; 76 - double-wing side of the platform from the bottom side.

Fig. 12 a and b — delivery platforms of the 1st and 2nd lines, front view and plan view: 77 — platform body; 78 - wheels; 79 - traction conveyor; 80 - drive unit, 81 - drive drum of the traction conveyor.

Fig - design of the traction conveyor of the delivery platform, a section along aa: 82 - pan; 83 - traction chains; 84 - traction links; 85 - roller rollers.

Fig - moving blocks of a fossil into a mined-out space, a plan view: 86 - a movable block of a fossil; 68 - the left cheek of the pulley; slid with a loop of the pallet of the moved block; 69 - the right cheek pulley; 70 - traction cable; 87 - captures; 88 - hydraulic motor; 89 - drum; 90 - pin; 91 - cable for hood extraction; 92 - side loop for drawing out the pallet.

Fig - design of a hydraulic jack transverse movement of hydraulic pillars, a plan view: 93 - body; 94 - a piston; 95 - stock; 96 - a stub; 97 - holder; 98 - left hydrostand; 99 - the right hydrostand; 100 - space moving block under the roof; 101 - the space of movement of the fossil block in the extraction; 102 - the position of the piston when the right hydraulic stand is moved; 103 - the position of the right hydraulic post after moving; 104 - the position of the left hydraulic post after moving; 105 - position of the housing of the hydraulic jack after moving the left hydraulic stand.

Fig. 16 - roof control in the face, sequence of operations, plan view: 106 - section A, 107 - section B; 108 - section B; 109 - section G; 110 - section D.

The mechanized support of the treatment complex consists of sections moving after the treatment face and interconnected by three lines of corner guides. Each section consists (see Figure 1) of 10 hydraulic stands, base 4, overlap 5, 4 hydraulic jacks 6 transverse movement of hydraulic stands, two hydraulic jacks 7 of frontal movement of the lining, six niches for placing the cable layer, emulsion, water and oil lines and degassing gas pipeline, as well as sections of three lines of corner guides. The sections are exchanged along the length of the lava - 6.5 m, in the direction of movement: along the base of the lining - 8.4 m, along the overlap - 8.9 m.

The lining sections have three compartments in the direction of movement. The first compartment is designed for cutting and excavating blocks of fossil from the bottomhole array and moving workers. Cutting units, hydraulic cutting machines, hydraulic rams and tanks with a bayonet move in it. The first compartment is limited on one side by the breast of the face, on the other hand, by 4 hydrostations of the 1st line 1 (see Figure 1). On the base of the lining in the 1st compartment there is a section of angular guides for moving containers for receiving the bayonet from the slotted slots and moving the hydraulic actuators 12. Under the overlap in the first compartment there are two niches: the bottom 8 for accommodating the cable and the cable layer for the cutting unit, the top 9 for placement of emulsion and water lines and their stackers from hydraulic cutting machines for cutting the rear vertical gap.

The second compartment is intended for the movement of delivery platforms for the issuance from the face of the blocks of fossil upper level and tanks with a bayonet from slotted slots. The second compartment is limited on the one hand by 4 hydraulic struts of the 1st line, on the other hand, by 4 hydraulic struts of the 2nd line (see Figure 1). On the base of the lining in the second compartment there is a section of corner guides 10. Under the roof lining in the 2nd compartment there are two niches: the bottom 13 is designed to accommodate emulsion lines to support the emulsion of hydraulic stands and jacks of the lining, the upper niche 14 is designed to accommodate emulsion and water lines for power cutting machines for cutting transverse cracks. In the second compartment there are four hydraulic jacks 6 for the transverse movement of hydraulic pillars 1 of the first line and 2 of the second line. The third compartment is intended for the movement of delivery platforms of the 2nd line for the issuance of blocks of the fossil bottom level from the face. The third compartment is limited on one side by 4 hydrostations of the 2nd line, on the other hand the compartment is limited by two hydrostations of the 3rd line. On the base of the lining in the 3rd compartment, a section of corner guides is installed. Under the roof support in the 3rd compartment, two niches are arranged. The lower niche 15 is designed to accommodate the oil supply lines for powering the hydraulic motors of loading devices on delivery platforms and traction devices for moving fossil blocks to the worked out space. The upper niche 16 in the third compartment is designed to accommodate a degassing gas pipeline in it for the suction of methane released in the slots of the developed massif.

The length of the face is the space of the lining section is also divided into three compartments: the middle and two side. In the middle compartment, excavation, moving and loading of fossil blocks of the lower and upper levels are carried out on the delivery platforms. Along the lateral compartments, fossil blocks are moved for laying in the worked out space. The length of the middle part along the bottom line is 5.2 m, the length of each side part is 0.65 m.

In order not to clutter up the space and not create obstacles when moving and loading fossil blocks on delivery platforms, in the initial state, the hydraulic pillars of the 1st and 2nd lines are in the lateral parts of the section. After loading of the blocks of fossil in this section of the working face is completed, due to the need to move the blocks of fossil along the lateral sections of the hydrostatic sections of the 1st and 2nd lines from the lateral parts, they are moved to the middle part of the sections with the help of transverse hydraulic jacks 6.

To ensure the stability of the sections on the inclined surface of the stope soil during its operation with movement along the rising of the formation, the hydrostations of the 1st and 3rd lines are installed perpendicular to the plane of the formation. The 2nd pillar racks are installed in a vertical position to create the possibility of vertical installation of fossil blocks on the delivery platforms of both delivery lines.

The support sections are moved after the working face by means of two hydraulic jacks 7 of frontal movement and are carried out in two stages: first, by extending the hydraulic jack rods, the main part of the section is moved 2.2 m, then at the second stage the back of the section is pulled to it. The main part of the section includes the base, overlap and hydraulic stands of all three sections of the section, with the exception of two rear hydraulic pillars of the 3rd line, together with part of the base and overlap above and below them, as well as hydraulic jacks for frontal movement. The movement of the main part of the section is carried out by extending the hydraulic jack rods with open hydraulic struts of the 3rd line and completely unloaded hydraulic struts of the 1st and 2nd lines. After moving the main part of the section, the hydraulic struts of the 1st and 2nd lines are strut and the hydraulic struts of the 3rd line are unloaded. The movement of the rear of the section is carried out by retracting the hydraulic cylinders of the jacks 7 on the previously extended rods.

The production cycle for production begins with a working stroke of two logging units from the middle of the lava to both sides with the cutting bases cutting through three slits parallel to the formation plane: the lower one at the boundary with the soil, the middle in the middle of the formation thickness and the upper one at the boundary with the formation roof. Following each cutting unit, two hydraulic cutting machines are put into operation: the first one for cutting transverse slots, the next one for cutting through the rear vertical slot. After cutting blocks, they are loaded onto delivery platforms. Pre-excavation and lowering to the lower level of the upper blocks using hydraulic rams. The cycle ends with moving fossil blocks intended for bookmark into the worked-out space and moving lining sections.

The cutting unit has an electric motor 18 (see Figure 2), which enables the cutting of 3 slots and through the hydraulic insert 19 the operation of the supply part 20, which ensures the movement of the unit during working and idling. The engine receives electric power through a cable located in the lower niche 8 (see Figure 1). When the unit moves in a recess 8 using a cable layer, the cable is re-laid continuously to maintain its uniform distribution along the length of the recess along the entire length of the lava. The executive bodies of the cutting unit consist of a lower cutting part 21, a middle cutting part 22 and an upper cutting part 23. Each cutting part has a cutting bar for cutting a gap, a reamer and a gear system for transmitting rotation from a common vertical drive shaft 30 to the cutting ball. The stability of the movement of the aggregate in the horizontal direction along the inclined surface of the formation soil is ensured by the movement of the aggregate wheels from the opposite side from the bottom along the angular guide, joined to the corner guide from the bottom side of the track to move containers for accumulating the shafts coming from the slotted slots. The stability of the movement of the cutting unit in its upper part is ensured by the sliding of its ski 28 along the guide of the vertical panel 17 (see Fig. 1), fixed to the roof support in the 1st compartment.

The cutting of the transverse slots with a hydraulic cutting machine is carried out by sections along the length of the lava, equal to 30 m. The cutting is carried out simultaneously by two executive hydraulic cutting tools 32 (see Figure 3) on both sides of the stationary hydraulic cutting machine 31. The cutting of the transverse cracks is carried out with ultra-high pressure water (up to 300 MPa) , which is created in the hydraulic booster located in the body of the hydraulic cutting machine 31, and through the flexible sleeve 33 is supplied to the actuating tool. Primary water is supplied to the hydraulic booster along the sleeve 34, which is connected to the fitting of the water main. The emulsion enters the hydraulic booster along the sleeve 35 and the spent leaves through the drain sleeve 36. Both sleeves are connected to their highways through fittings installed under each section.

Executive hydraulic cutting tool for cutting the transverse slots 32 (see Figure 4) consists of 3 thin tubes made of titanium alloy, the ends of which are mounted hydraulic cutting heads 41 and 42, and a vertical tube for supplying ultra-high pressure water flowing through a flexible sleeve 33. The hydraulic cutting tool has an emphasis for a shoulder and a trigger for inclusion of supply of ultrahigh pressure water to hydraulic cutting heads. The tool is designed for manual control of hydraulic cutting by a hydraulic cutting operator. The instrument is inserted with its own tubes simultaneously into the upper, middle and lower slots 44, 45 and 46 over their entire depth of 2.2 m at the junction between the pallets. After that, another operator, located near the hydraulic booster, turns on the ultra-high pressure water supply to the executive tool. The operator-hydraulic cutter pulls the trigger and, making sure the appearance of hydraulic jets in the cracks, begins to slowly withdraw the tool from the gap to the outside. In this case, hydraulic jets flowing from the side nozzles of the hydraulic cutting heads cut through the fossil massif and, when the tool moves, form a transverse vertical gap 37.

The cutting of the rear vertical slit is performed by the second hydraulic cutting machine, which works in this area after the cutting of the transverse slots. This ends the cutting from the array of blocks of fossil in this area.

At this point, the issue of tanks filled with a bayonet from slotted slots should be completed from the face at this section. The extraction and loading of fossil blocks begins with blocks of the 2nd level 52 (see Figure 5) using a hydraulic actuator, which is pulled to a given section of lava along track 12. The hydraulic actuator consists of an overlap 47 for receiving fossil blocks of the upper level, twelve telescopic hydraulic racks 48 holding the overlap, four hydraulic jacks 49 for removing blocks of the fossil upper level from the array for overlapping and four spreader hydrostations 50 for fixing the position of the hydraulic actuator when removing the blocks.

Pulling blocks of the fossil upper level to the overlap consists of the following operations. First, the rods 54 are extended (see FIG. 5), along with which the lateral parts of the 2nd compartment of the lining section of the spacer hydraulic struts 50 are carried out. After the hydraulic struts are expanded, the hydraulic cylinders 51 are retracted onto the previously elongated rods 54. When the hydraulic cylinders 51 are retracted, the latter are moved a sling beam 55 combined with them, which is studded with rod pins with sling loops of 56 pallets of mining blocks.

Lowering the upper level blocks to the height of the working surface of the 1st line delivery platforms is carried out simultaneously in all twelve telescopic hydraulic racks 48 by first pulling the rods 57 into the bushings 58 of the hydraulic struts, and then the bushings 58 into the hydraulic cylinders. In this case, six blocks of the fossil are lowered at once.

Figure 6 presents the design of hydraulic jacks for the extraction of mining blocks of the upper level from the bottom hole array. The hydraulic jack consists of a cylinder 51, a cage 59, fixed to the housing of the hydraulic actuator, a rod 54 having a holder 62 and a pressure emulsion inlet valve 64 or an extended piston position. To extend the hydraulic jack rod through the valve 61, the pressure emulsion is injected, as a result of which the piston 60 moves to the far right position. With the extension of the rod attached to it by the holder 62, the spacer hydrostand also occupies the extreme right position 63.

7 is a diagram of loading top-level blocks 52 onto a delivery platform 65 of a first line. The weight of the moving blocks with a specific gravity of 1.45 t / m ³ is 14.8 tons. The distance of movement of the blocks during loading is 3 m. With a sliding coefficient of steel of the metal pallet on the steel of the side of the platform on which the movement is made, equal to 0.17, the sliding friction force, which must be overcome, is 2.5 tons. Then the amount of work is 2.5 tons × 3 m = 7.5 thousand kg. To move the unit to the platform under these conditions, the capacity of the loading device must be

7500 kgm: 5 sec = 1500 kgm / sec = 20 hp = 14.7 kW.

Loading is carried out by moving the blocks from the lower position of the overlap 47 of the hydraulic accelerator on the board 67 of the delivery platform, tilted towards the bottom, using the sheave 68, which is stationary mounted on the delivery platform. The polyspast consists of left and right cheeks with rollers mounted on them and a cable enveloping them. The left cheek 66 of the tackle is slinged to the loops of the metal pallet of the movable fossil block. The right cheek 69 is stationary attached to the right side of the platform. The tension of the cable 70 of the loading device for moving the block is made on one of the reels 71 (see FIG. 10) of the traction block mounted on the rear platform of the delivery platform.

After removing the fossil blocks from the upper and lower levels, before loading them onto the delivery platforms, they put on a cable or, if provided, cable and case equipment. Cable equipment (see Fig. 8) is necessary for the production of lifting and lowering of fossil blocks during loading and handling operations. The cable accessories are permanently fixed to metal pallets and compactly delivered to the working face along with them during the delivery and unloading of empty containers for accumulation of bayonets from slotted slots.

When developing a fossil of a small fortress, when the fossil, after being taken out of the array by blocks, is prone to destruction, in addition to the cable one, also the cover equipment of the blocks is used (see Fig. 9), which is also worn on the blocks immediately after their removal. The block, which sits tightly on a metal pallet, is tightly wrapped on the sides with a continuous, durable, durable cloth, and then tightened with braids, which are slung from all sides to the pallet. At the same time, at the top of the block, in the center of the block platform, there should be a central sling ring, to which a metal sling loop is welded on top, which is used to lift the fossil blocks during loading and handling operations.

Figure 10 shows a plan diagram of the device of the traction unit of the loading device. The traction unit consists of six drums, one for each loading position on the delivery platform. A traction cable is wound on each drum to load the fossil blocks into the appropriate loading place. The traction cable from the drums through the bypass blocks goes along the side of the platform from the side of the worked-out space to the corresponding loading place, where the chain hoist is located, used for loading the blocks of fossil. The drum receives the rotation of the drive shaft 73 through a system of gears 72. The drive shaft is driven by a hydraulic motor 74 type DP4 power of 29 kW.

Figure 11 shows the loading diagram of the blocks of the lower fossil blocks on the delivery platform of the 2nd line. Loading of blocks is carried out with the side of the delivery platform folded down from the bottom side. The block is moved or loaded at a distance of 9 m. The volume of work to move the block is 2.5 t × 9 m = 22500 kgm. With a power of the loading device of 29 kW, the time for moving the block to the platform will be

The delivery platforms of the 1st and 2nd lines consist of a housing 77 (see Fig. 12) with two sides, moving on wheels 78 along horizontally laid corner guides, a traction conveyor 79 with a drive unit 30, a driving drum 81, a tension drum with of the opposite side, a hydraulic motor 74, drums 72 of traction blocks with a gear system and a drive shaft and traction cables 70. Delivery platforms have dimensions: length 21.5 m, width 2.7 m. On the working surface of the delivery platform there are 6 mining blocks . The placement of fossil blocks on the platform corresponds to their position in the bottomhole array during their excavation and loading. Delivery platforms are designed to issue mining blocks of fossil from the face. The movement of the delivery platform with the cargo of mining blocks to the side mine workings is carried out in the horizontal direction along the corner guides with the help of mine cargo winches LSG located in the burs of adjacent mine workings. The weight of the delivery platform with the load is 110 tons. With a diameter of steel wheels of the delivery platform of 0.14 m, the coefficient of rolling friction resistance to movement of the platform along the steel corner rails is 0.015. Therefore, the force of resistance to movement due to rolling friction is 1.65 tons, which is less than the tractive force of the LSH winch, equal to 1.8 tons. With the reverse movement of the delivery platform without load, the resistance to movement due to rolling friction is 0.3 tons. Therefore, the movement produced using a shunting winch mounted on wheeled trolleys in the middle of the lava.

The stability of the movement of delivery platforms with a cargo of fossil blocks in the horizontal direction along the inclined surface of the lava soil is ensured by:

- vertical installation of fossil blocks (see Fig. 7) with the inclined position of the platform plane;

- vertical installation of the wheels of the delivery platform;

- the horizontal contact surface of the corner guides, sections of which in the middle part are rigidly connected to the base of the lining;

- an insignificant height of 0.31 m of the working surface of the platform from the lava soil with a sufficiently large width of 2.7 m.

Unloading of fossil blocks from the delivery platforms at the onboard mine workings is carried out by a traction conveyor mounted on top of the body of the delivery platforms. The traction conveyor includes pans 82 (see FIG. 13) mounted on top of the platform body along its entire length, traction chains 83 moving along the guides, traction links 84 connected to the sides with chains and moving under load on roller rollers 85, driven block 80 (see Fig. 12 b), located on the rear platform from the bottom side, the lead 81 and the tension head located at the ends of the conveyor.

When unloading fossil blocks from a delivery platform, the pulling force of the discharge conveyor must overcome the rolling friction force determined in accordance with (2) by the formula

where K _cat - coefficient of friction, cm;

P is the pressing force, t;

r is the radius of the wheels, see

The rolling friction coefficient for wheels with a steel bandage rolling along a steel rail is 0.05 s. The pressing force in this case is the total weight of the cargo 14.8 t × 6 = 83.8 t.

Then, the force of resistance to the movement of blocks during their unloading is equal to

The distance the blocks move when unloading is 3.9 m. The amount of work when unloading one block is 0.634 t × 3.9 m = 2473 kgm.

The unloading time of one unit is

Management of the roof in the face is carried out by partial laying of the worked-out space with fossil blocks. Fossil blocks intended for laying have dimensions 2.2 m × 1.3 m. The height of the blocks is less than the thickness of the formation by the total thickness of the slotted slots parallel to the plane of the formation, 0.14 m × 3 = 0.42 m. These blocks are cut into each cycle and move towards the worked out space in the area of the lateral parts of the lining sections using traction devices. Blocks are moved on each section along the entire length of the lava. The distance of movement of the blocks is 9.8 m. The blocks move close to the displaced blocks in previous cycles, thus forming landing strips. The roof is naturally planted on these strips by smoothly bending it without creating a concentration of stresses in the rocks, crack formation and outfalls. The weight of the moving blocks is 14.8 tons. Like mining blocks, blocks under the roof are also moved on metal pallets from top to bottom along the dip of the formation. There are obstacles in the way of moving blocks in the form of installed hydraulic posts of the 1st and 2nd lines and the ends of 3 sections of corner guides located in the 1st, 2nd and 3rd sections of the lining. The hydraulic racks of the 1st and 2nd lines are moved mechanically using transverse hydraulic jacks by moving them to the middle parts of adjacent sections to a distance of 0.65 m. Removing the ends of the corner guides from the block moving path under the roof is done by folding the articulated ends to the middle part of the adjacent section. At the same time, in the 1st and 2nd departments, the corner guides are removed to a width of 1.3 m, equal to the width of the movable block. In the 3rd compartment, the corner guides are removed to the side of the middle part of the neighboring section by another 1.3 m, which is necessary for drawing the pallet out from under the moved block.

Moving fossil blocks under the roof is carried out using a traction device consisting of a chain block and a traction block, which is mounted on a wheeled trolley in the 3rd compartment. The left cheek 68 (see Fig. 14) of the chain hoist is slinged with the loop of the pallet 56. The right cheek of the chain hoist 69 with grippers 87 is fixed to the rear edges of the bases 4 of two adjacent support sections. Traction to move the fossil block under the roof is created by rotating the drum 89 of the traction block. The drum is driven by a hydraulic motor 88 type DP4 power of 29 kW.

The coefficient of resistance to sliding friction when moving the block during friction of the steel of the pallet against the steel of the base lining is 0.17. Therefore, the force of resistance to displacement due to sliding friction is 14.8 t × 0.17 = 2.5 t.

The fossil block is moved using a chain hoist only 9 m, since the cheek block itself is an obstacle to moving it close to the landing strip. The amount of work to move the fossil block under the roof at a distance of 9 m is

2.5 t × 9 m = 2500 kgm.

Using a DP4 with a power of 29 kW to move the hydraulic motor, the travel time will be equal to

Sliding blocks of the fossil close to the landing strip is carried out by reverse stroke of the previously extended hydraulic ram jacks of the frontal movement 7 of the adjacent sections. A pin 92 is mounted on the rods of the hydraulic jacks 7, which is then slid with the loop 56 of the pallet. After the block is latched by the reverse movement of the rods, it occupies a position at the end of the third compartment of the lining section close to the landing strip.

After moving the block to a predetermined position, the pallet is drawn out from under the block. The hood is made by winding on the drum 89 of the exhaust cable 91, slinged to the side loop 92 of the pallet. Before the hood, the position of the block is fixed by focusing in its array of the ends of the angular guides of the 2nd line that were previously thrown back in the 3rd compartment. On Fig presents in terms of the structural device of the hydraulic jack transverse movement of the hydraulic struts of the 1st and 2nd lines of the lining. In the housing 93 there is a piston 94 with a rod 95. Under the action of the pressure emulsion, the piston can move to the right side until it stops against the plug 96. When moving the rod, the piston moves the holder using the holder 97 from the position 99 to the new position 103. In the second step, pressure emulsion falling into the space between the plug 96 and the new position of the piston 102, the housing 93 of the hydraulic jack moves to a new position 105. Together with the housing, the left hydraulic strut 96 moves to its new position 104. increment hydraulic jack to its initial state occurs in a reverse sequence of execution of operations.

On Fig presents the sequence of operations associated with the management of the roof: the transverse movement of the hydraulic pillars of the 1st and 2nd lines, the movement of fossil blocks in the 3rd compartment, their movement to the landing strips and the movement of both components of the lining section. So, if no operations have yet been performed in section D, then in section D the fossil block is moved to the 3rd compartment under the roof, and the first and second line hydraulic stands are moved along its path. In section B, the main part of the section was moved. Section B is completely moved, however, the hydraulic pillars of the 1st and 2nd lines are not returned to their original state. In section A, all movement operations were performed.

In accordance with the goal of the invention is the improvement of technology and equipment providing high performance, safety, environmental friendliness and economic efficiency, we will evaluate these indicators based on the capabilities of the equipment presented in the invention.

Treatment Plant Performance

First, we determine the possible technical performance of the treatment plant by the number of possible cycles for cutting fossil blocks. The feed speed of the cutting unit during the working stroke is 2.8 m / min (according to the technical characteristics of the cutting machine Ural-33, the components of which also make up the entire cutting unit).

The cutting speed of slits with hydraulic cutting machines can only be greater. Then the time of cutting with 2 cutting units of the entire bottomhole array for cutting blocks of fossil will be 170 m: 2.8 m / min = 60.7 min. 170 m reverse idle time: 6.1 m / min = 21 min. Given the final operations of the cycle, its total duration can be taken 90 minutes. Then per shift, the number of possible cycles for cutting fossil blocks is 360 min: 90 min = 4 cycles.

The number of fossil blocks to be extruded from the lava weighing 14.8 tons and a size of 2.6 m × 2.2 m × 1.79 m (with a formation thickness of 4 m) is

Here 340 m is the length of the lava; 6.5 m - the length of the lining section; 4 - the number of cut mining blocks per one section of the lining.

In addition to issuing 208 mining blocks from each cycle, mining in the form of shields from slotted slots in the amount of 52 containers with a shank is also subject to delivery. Since the dimensions of the containers are the same as the production blocks, they can be added up to calculate the required number of cargo spaces. So it is subject to issue from each cycle 208 + 52 = 260 cargo units. Then, for the delivery of goods from 4 cycles, 1040 cargo units will be subject to issue.

We now determine the average duration of the turnover of one delivery platform when delivering goods from the bottom.

1. Loading fossil blocks on a delivery platform.

Operations:

- lowering the side of the platform from the bottom side; performed by 2 workers, duration - 1 min;

- fixing the position of the platform by fastening the platform grips to the nearest hydraulic stands; performed by 1st worker, duration 0.5 min;

- connecting the hoses of the hydraulic motor to the fittings of the oil supply line; performed by 1st worker, duration - 0.5 min;

- slinging of 6 chain hoists to the loops of 6 pallets to 2 workers, the execution time is 1 min;

total duration of preparatory operations - 2 min;

- control the movement of mineral blocks to the delivery platform; management is carried out by the 1st worker for the rotation of the loading drums of the traction unit of the platform, the duration of the operation is 1 min;

- the unloading of the chain hoists from the hinges of pallets of the moved blocks is performed by the 2nd worker, the duration is 1 min;

total loading time - 1 min;

- disconnecting the hoses of the hydraulic motor from the fittings of the oil supply line; performed by 1st worker, duration - 0.5 min;

- detachment of the captures fixing the position of the platform is performed by the 2nd worker, the execution time is 0.5 min;

- raising the side of the platform, performed by 2 workers, the lead time is 1 min;

total final operations - 1.5 min;

total loading time: 2 min + 1 min + 1.5 min = 4.5 min.

2. The travel time of the delivery platform to the on-board development

3. Unloading the platform, operations:

- connecting the cable of the electric motor of the drive unit of the traction conveyor to the clutch and turning on the starter for supplying electric power to the electric motor, is performed by the 1st worker, the execution time is 0.5 min;

- lowering the end of the platform, is performed by the 2nd worker, the execution time is 0.5 min;

total time for the preparatory operations is 0.5 min;

- unloading, moving fossil blocks from the platform to transport trolleys on the side working 5 sec × 6 bl. = 30 sec = 0.5 min;

- disconnecting the starter and disconnecting the cable in the coupling, time 0.5 min;

- rise of the front side of the platform, the execution time is 0.5 min;

both operations are performed by two workers in 0.5 min;

total time of unloading the platform is 0.5 min + 0.5 min + 0.5 min = 1.5 min.

4. The travel time of the platform to the loading point is 0.75 minutes.

Total turnaround time of the delivery platform upon delivery

4.5 min + 0.75 min + 1.5 min + 0.75 min = 7.5 min

The performance of the delivery process is equal to:

one platform 6 load capacity: 7.5 min = 0.8 load units / min;

four platforms 0.8 × 4 = 3.2 load units / min.

Number of cargo units per shift with 4 delivery platforms

3.2 cargo unit / min × 360 min = 1152 load units, which is more than 1040 load units. Therefore, the technical capabilities of the treatment plant for production per shift is the volume of production over four production cycles. Production per cycle is

340 m × 2.2 m × 4 m × 1.45 t / m ³ × 0.85 = 3687 t.

The capacity of the treatment plant per shift will be

3687 t × 4 cycles = 14750 t.

The daily technical productivity of the treatment plant with 3-shift operation of the complex per day for production is

14750 t × 3 = 44250 t.

This value of the technical capacity of the treatment plant is more than two grooves higher than the daily productivity record achieved in 2005 at the Kuzbass mines using the most advanced foreign types of treatment plants and ten times higher than the average level of loads on the treatment faces with mechanized complexes operating in similar conditions for the development of shallow formations with a capacity of 4 m.

The main reason for this is that pioneering, qualitatively new solutions for the extraction of fossil in large blocks without destroying the bottom-hole massif are laid in the technology of treatment works and in the design of the treatment complex implementing this technology. This made it possible to increase the capture width from 0.63 m, which is available in existing treatment plants, to 2.2 m, i.e. 3.5 times. Another new pioneer solution inherent in the technology and design of the treatment plant is the use of two delivery lines with four delivery platforms instead of scraper conveyors, delivering the extracted mineral directly to both adjacent mine workings, which made it possible to obtain three very blogospheric effects:

1) to double the length of the lava from 170 m, which existing treatment facilities have, to 340 m, which made it possible to simultaneously create two excavation processes in the lava with two cutting units and 4 hydraulic cutting machines, which also doubled the technical productivity;

2) increase by five times the productivity of the delivery process from the existing 600 t / h, which scraper conveyors of new samples SP202M, SP87PM, SU OKP70, SP 301 and others have up to 3,000 t / h or more, which have two delivery lines equipped with 4 self-loading and self-unloading delivery platforms with production output not for one transport output (as with existing treatment facilities), but for two;

3) to create autonomy, independence of excavation and delivery processes in the mine face from transport processes at adjacent mine workings and on mine transport: for example, failures in the off-road transport have absolutely no effect on the excavation work of the cutting units, hydraulic cutting machines and hydraulic rams, since the technical ability of the cutting aggregates and hydraulic cutting machines does not even depend on the delivery process in the working face; the stop of the delivery process in the lava can occur only during long stops in the operation of the general mine transport, because during short-term interruptions in the transport on the mine workings adjacent to the lava, the delivery process in the lava does not stop: the fossil blocks are unloaded from the delivery platforms in the interface zone in the lava until the transport is restored of the process at adjacent mine workings, and the fossil is mined to the mine workings after restoration is carried out using LSH winches located in berm All this makes it possible to exclude the appearance in the lava of forced downtime having a large specific gravity in existing mines, and to increase the machine time coefficient by at least one and a half times, which gives a corresponding increase in the productivity of the working face.

These two major pioneer technical solutions that are embedded in this invention: non-destruction of a mineral in a placer by mining in large blocks and not using scraper conveyors in a lava allows, practically without decreasing productivity, to work out mineral deposits located in difficult mining and geological conditions that are ubiquitous. These are solid inclusions in the formation in the form of pyrites, lenses and boulders, small-amplitude disturbance of the rocks by rocks, complex hypsometry of the occurrence of the developed layers and the presence of troughs. Due to this, the introduction of the invention in large volumes will increase many times the average load on the face at the mines and regions, implement major pioneering solutions in the creation of treatment equipment of a qualitatively new level on a large scale.

Safety and ecology of sewage treatment

Extraction of fossil in large blocks instead of its destruction into placers, replacement of combines with screw actuators for cutting units and hydraulic cutting machines, and scraper conveyors with their chains and scrapers for delivery lines, as well as the transition from complete collapse of the roof in the worked out space to its partial laying allows you to raise the level of safety and the environment of treatment works to a qualitatively higher level.

In connection with advancing the excavation of a fossil by cutting deep slits in the seam, cutting units along the entire length of the lava near the soil and the seam roof and in the middle of its thickness create high safety for safe mining of outburst coal seams.

Non-destruction in the placer during the extraction of fossils, as is now happening in existing treatment facilities, can significantly reduce the dust content of the face of coal mines, create a truly environmentally friendly production. The fossil blocks extracted from the array are closed by a bag snap, which is then tightly tightened by a wire snap. The shaft issued by the cutting bars of the cutting units from the upper and middle slots also immediately enters the storage tanks, where the bayonet from other slots located on the lava soil is also sucked in with PSh-150 vacuum cleaners mounted on the units. This localizes dust-generating sources. The absence of coal dust in the atmosphere of the mine workings, on their lateral surfaces and on the soil, not only in the lava, but also along the path of the entire production movement allows us to solve not only the most important environmental problem, but also completely eliminate the very possibility of the appearance of the most dangerous gas and dust explosions.

Extraction of fossil in large blocks can also significantly reduce the gas abundance of treatment workings, gas flows from the extracted fossil and from the developed space are somewhat eliminated. The blocks of fossil extruded to the surface are large: 2.6 m × 2.2 m × 1.8 m, so their residual gas content reaches 70%. Therefore, only 30% of the gas contained in the fossil is released in the treatment plant. These precipitates occur in the slits cut by the cutting units and hydraulic cutting machines. But even there, only 1/3 of these secretions, i.e. 10% of the incoming gas content falls into the atmosphere of the working face, since the remaining gas emissions through the sectional sleeves, which are inserted into the depths of the slots cut by the cutting units, every 6.5 m along the length of the lava, are sucked into the main degassing gas pipeline located in the upper recess under the ceiling in 3rd branch. There is also no gas supply from the worked out space, since the management of the roof is taken by partial laying of the worked-out space by the blocks of the fossil. Therefore, gas from satellites does not enter the worked-out space. It also cannot come from the blocks of the fossil left in the worked-out space, since the blocks of the fossil left there are under high rock pressure.

In connection with the aforementioned, the gas mobility of the treatment workings can be no more than 10% of the natural gas content. The latter, together with a large cross-sectional area of the bottomhole space, up to 40 m ² , makes it possible to safely conduct treatment work on the gas factor, with a gas load of up to 20 m ³ / t loading on the working face of more than 40 thousand tons / day. A large area of an uncluttered passage section of the bottomhole working space for free movement of air makes it possible to supply it in sufficient quantities, as well as to ensure the non-occurrence of stagnant air zones, gas contamination, and to prevent high temperatures in the working face.

The use of roof management by partial laying of the worked-out space by cut-out fossil blocks with the creation of continuous landing strips for landing of the roof by smoothly bending it allows avoiding dangerous stress concentrations in the rocks of the roof, insignificant loads on the bottom-hole mechanized support, the absence of gaps, cracks, outfalls and collapses rocks of the roof to the bottomhole space, to ensure the stability of technological exposure of the roof, to prevent injury to workers their collapsing rocks roof.

The non-collapse of the roof in the worked-out space, its smooth deflection and landing on the left strip of fossil in the worked-out space make it possible to prevent the emergence of a hydraulic connection with the upstream water-saturated rocks or aquifers. In this regard, it is possible to reduce the discharge to the surface of mine acid and alkaline waters in connection with a decrease in water inflows into mine workings. In connection with the non-collapse of the roof in the worked out space, there is no loss of mineral reserves lying above the developed layer and falling into the destruction zone. Due to the smooth deflection and subsidence of it as the left strips are crushed, there is no need to leave large areas of the mine fields of the developed formations intact under water bodies, industrial facilities, housing estates, railways, which eliminates significant loss of reserves.

Cost effectiveness

1. The low cost of treatment equipment is 60 million rubles, due to the low metal consumption and the lack of assembly units that are difficult to manufacture.

2. High labor productivity of a worker on lava - 240 t / output.

3. Low energy consumption for production - 0.9 kWh / t.

4. A very low local cost of production - 10 rubles / t.

5. High concentration of mining operations, load on the face

6. In connection with long lavas, a small specific volume of preparatory mine workings per 1000 tons of reserves.

7. It is not necessary to purchase expensive belt conveyors and structures on the surface of skip hoists.

8. The absence of the need for auxiliary production: enrichment, drainage, degassing.

9. When transporting a fossil by rail. transport in large blocks of one and a half gas reduces the cost of railways traffic in connection with an increase in the capacity of wagons (due to a 1.5 times increase in the specific weight of the fossil in wagons from "in bulk" to "in the array", as well as due to a reduction in the cost of loading and unloading operations. The latter is especially important for deliveries over long distances from Western and Eastern Siberia to the European regions of Russia, to the Far East and for export).

10. Significant reduction in the cost of sea transportation of fossil in large blocks compared to alluvial minerals, reduction of costs when loading vessels at terminals, in seaports, in border stations, marshalling yards in connection with a decrease in the cost of loading and unloading operations, and reduction in occupied space.

11. The possibility of increasing the value of a fossil or increasing its competitiveness by increasing its consumer value

- upon delivery to enterprises

a) due to its non-freezing in the winter and not spontaneous combustion in large blocks;

b) by increasing its calorific value due to the high residual gas content;

- in the supply of coal to the population by increasing the culture of coal consumption by preliminary sawing the coal blocks into briquettes with their optimal configuration and packaging.

Literature

1. Complex mechanization and automation of sewage treatment in coal mines. Under the general editorship of B.F. Bratchenko. M .: "Nedra", 1977, p. 415.

2. Putilov K.A. Physics course, vol. 1. M .: Fizmatgiz, 1962, 560 p.

Claims (7)

1. A cleaning mechanized complex of equipment for the development of a fossil occurring in shallow beds with the movement of lava along the uprising of the bed, and excavation and delivery equipment for moving horizontally along the strike of the bed, including sections of a mechanized hydraulic roof support of a protective type, hydraulic cutting machines that cut fossils from the bottom hole in large blocks executive bodies with hydraulic cutting heads connected through metal tubes on which they are rigidly fixed, with with a superconducting line coming from super-high pressure water multipliers, delivery platforms of the 1st and 2nd lines, for the delivery of fossil blocks to both mine workings adjacent to the lava along two parallel-laid lines of corner guides using mine cargo winches located in berm next to adjacent mine workings, with the roof being controlled by the method of partial laying of the worked-out space by blocks of fossil cut in the bottomhole massif, which are moved there to form landing strips, characterized in that the cutting of slots parallel to the plane of the formation is made by two cutting units, the movement of which when cutting the cracks occurs from the middle of the lava to its sides, the cutting unit consists of an electric motor, a hydraulic insert, a feeding part, which ensures the movement of the unit during operation and on idle, and the work of three cutting parts for cutting in the formation array, respectively, three slots parallel to the plane of the formation: lower at the boundary with the lava soil, average in the middle of the thickness of the formation and the upper one on the border with the roof, while the operation of all cutting parts is provided by one vertical shaft that receives rotation from a common engine, the unit is equipped with rollers for its movement close to the chest of the working face: from the side of the face through the soil on the opposite side, rigidly connected to the base of the section support the angular guide, the working surface of which is made horizontal, and its side plate is vertical, while the stability of the cutting unit when moving is also provided by the ski stop in the upper hour and the unit during its vertical sliding panel mounted on the ceiling console and laid over the entire length of lava. 2. The treatment complex according to claim 1, characterized in that the lining sections have three compartments: the first for moving cutting units, hydraulic cutting machines, hydraulic rams, tanks with a bayonet from slotted slots and workers, the second compartment for moving first-line delivery platforms , the third compartment - to move the delivery platforms of the 2nd line, while the lining sections have ten hydraulic stands installed in three lines: the first and second lines under the section each have four hydraulic stands - two twin hydraulic stands on both sides, separating the space under the section in three parts: the middle one for moving and loading mining blocks onto the delivery platforms and the lateral parts for moving the fossil blocks into the worked out space, the third line has two hydraulic stands installed in the middle part to ensure the stability of the support sections from sliding down the 1st rack and the 3rd line are made with the possibility of installing perpendicular to the plane of the reservoir, the rack of the 2nd line for installation vertically from the condition of vertical installation of the transported blocks of fossil on sufficient platforms ah, the support sections are equipped with 4 hydraulic jacks for the transverse movement of the hydraulic struts of the 1st and 2nd lines, the end parts of the sections of the corner guides in all three compartments have hinges with their middle parts, which allows them to be tilted into the middle part to free up space in the lateral parts sections for free movement of fossil blocks into the mined-out space, the lining sections are also equipped with two hydraulic jacks of frontal movement, in the first, second and third sections of the mechanized guide section Under the roof support there are two niches made: the upper and lower for placing the cable with the cable layer for the cutting unit, emulsion lines to the hydraulic cutting machines, oil supply lines to the hydraulic motors of the traction blocks of the delivery platforms and to the devices for moving the fossil blocks, as well as to the hydraulic motors for moving the hydraulic rams and hydraulic cutting machines, in the niches there are also primary water supply lines to the hydraulic cutting machines and a degassing gas pipeline for suctioning methane from slotted slots and emulsions ion line for supplying emulsion of hydraulic roof supports and hydraulic jacks. 3. The treatment complex according to claim 1, characterized in that the cutting of the transverse slots is carried out when the hydraulic cutting machine is stationary by returning the hydraulic cutting tool from the array to the outside, while the hydraulic booster is powered by emulsion and water by connecting the hydraulic cutting machine hoses to the pressure and drain emulsion fittings , as well as water supply lines, cutting through the rear vertical slit is carried out by continuously moving hydraulic cutting machines with a hydra With a powerful tool with hydraulic cutting heads that are constantly buried in the bottomhole array to the depth of capture of the cutting bar, power and emulsion of the hydraulic booster are continuously supplied with constantly connected sleeves of hydraulic cutting machines to the emulsion and water mains, the power is provided by the presence of a stacker of mains, which re-arranges them when the hydraulic cutting machine moves and a change in the direction of its movement during idle haul; for movement, the hydraulic cutting machines are equipped with rollers driven by dromotors. 4. The treatment complex according to claim 1, characterized in that for extraction from the bottomhole massif and loading onto the delivery platforms of the 1st line of top-level fossil blocks located in the bottomhole massif between the middle and upper slots, the complex is equipped with hydraulic rams, and for moving - with chain hoists using traction blocks located on the rear platform of the delivery platforms, for loading fossil blocks onto the delivery platforms, the complex is equipped with cable and case equipment complete with metal pallets and a container shi for the bayonets. 5. The treatment complex according to claim 4, characterized in that the delivery platform has a number of loading places corresponding to the number of simultaneously removed blocks, the hydraulic actuator consists of an overlap for receiving blocks held on twelve telescopic hydraulic stands, four hydraulic jacks for excavating mining blocks of fossil from the array and four expansion hydraulic racks for fixing the position of the hydraulic actuator, the position of the hydraulic jacks for excavating the blocks corresponds to the lateral parts of the lining sections. 6. The treatment complex according to claim 1, characterized in that the delivery platforms of the 1st and 2nd lines consist of a body with two sides for movement on wheels along a corner guide horizontally laid on an inclined surface, a traction conveyor with a drive head, a loading device for loading fossil blocks and containers with a bayonet, there is a separate chain hoist at each loading place of the platform for loading, and the number of drums in the traction unit at the rear platform platform is equal to the number of loading places, t a cable that transfers traction from the drum to the pulley cheek, slid with the pallet of the loaded fossil block, goes from the drum to the loading place through the bypass system along the length of the platform along its side from the worked out space, for all drums there is a common drive in the form of a hydraulic motor with the working shaft and the system of levers and gears through which the torque is transmitted from the hydraulic motor to the drum, which currently provides loading, for a stable position of the platform when loading on it heavy blocks, the platform body is fixed to the nearest hydraulic supports by grippers, the fossil blocks are unloaded from the delivery platform on the side excavations by means of a traction conveyor consisting of pans installed on top of the platform body along its entire length, drive and tension heads, traction chains for moving along guides, traction links connected on the sides with chains and moving under load on roller rollers, and a drive unit located on the rear platform with a bottom hole us. 7. The treatment complex according to claim 1, characterized in that for moving the blocks of fossil to the mined-out space, the complex is equipped with a traction device consisting of a pulley block and a traction block, which is mounted on a wheeled trolley in the 3rd compartment, moving along a track of corner guides, the left cheek of the chain hoist is slinged with the loop of the pallet, the right cheek of the chain hoist is fixed to the rear edges of the bases of the adjacent support sections, the traction force to move the fossil block is created by rotating the traction drum block and a cable passing through the bypass block and pulley pulleys, is transmitted to the cheek pulley, slid with a pallet of the movable fossil block, the drum is rotated by a hydraulic motor.

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