CN214299994U - Oil shale processing device - Google Patents

Abstract

The utility model discloses an oil shale processing apparatus belongs to oil shale system oil technical field, the utility model discloses an oil shale processing apparatus, include: a drying preheating device, a horizontal pyrolysis device, a horizontal calcining rotary kiln and a gas collecting tower; wherein, horizontal pyrolysis device includes horizontal pyrolysis rotary kiln and horizontal heating kiln, inject in the horizontal pyrolysis rotary kiln with collect the pyrolysis chamber of room intercommunication, horizontal heating kiln sets up horizontal pyrolysis rotary kiln periphery is in order to incite somebody to action the heat transfer of horizontal heating kiln extremely in the pyrolysis chamber, it is equipped with the extraction opening to collect the room upper end, extraction opening department is equipped with the draught fan so that the pyrolysis chamber keeps negative pressure environment. The embodiment of the utility model provides a can be applied to products such as oil shale treatment facility, shale oil extraction equipment.

Description

Oil shale processing device

[ technical field ] A method for producing a semiconductor device

The utility model relates to an oil shale system oil technical field especially relates to oil shale processing apparatus.

[ background of the invention ]

Oil shale is an oil-bearing ore and is widely distributed worldwide. A plurality of provinces in China are distributed, and the reserves are considerable. The total oil-bearing reserves of oil shale are a disposable natural energy source greater than natural petroleum. When the existing oil shale processing equipment is used for processing oil shale, all shale oil in the oil shale is difficult to extract, and more resource waste can be caused. In addition, in the existing equipment, the preheating, pyrolysis and processing of the pyrolysis slag of the oil shale can be carried out in the same equipment, the temperature required in each link is different and cannot be separately controlled, and the conditions of insufficient preheating, insufficient pyrolysis and incomplete calcination are caused.

[ Utility model ] content

The utility model aims to solve the technical problem that overcome prior art not enough and propose oil shale processing apparatus.

In order to solve the technical problem, the utility model adopts the following technical scheme:

oil shale processing apparatus includes: the drying preheating device is provided with a drying preheating chamber and is used for drying hot oil shale; the horizontal pyrolysis device is used for pyrolyzing the oil shale; the horizontal calcining rotary kiln is provided with a calcining chamber and is used for calcining pyrolysis slag generated after the oil shale is pyrolyzed; the gas collecting tower is positioned between the horizontal pyrolysis device and the horizontal calcining rotary kiln, is provided with a collecting chamber and is used for collecting pyrolysis slag and oil gas; wherein, horizontal pyrolysis device includes horizontal pyrolysis rotary kiln and horizontal heating kiln, inject in the horizontal pyrolysis rotary kiln with collect the pyrolysis chamber of room intercommunication, horizontal heating kiln sets up horizontal pyrolysis rotary kiln periphery is in order to incite somebody to action the heat transfer of horizontal heating kiln extremely in the pyrolysis chamber, it is equipped with the extraction opening to collect the room upper end, extraction opening department is equipped with the draught fan so that the pyrolysis chamber keeps negative pressure environment.

The utility model provides an oil shale processing apparatus, be used for pyrolysis oil shale, extract shale oil and gas, and handle the oil shale after the pyrolysis, oil shale preheats before being pyrolyzed, eliminate moisture and partial organic matter, different from the prior art, the pyrolysis part and the burning part of oil shale go on in two different equipment, horizontal pyrolysis apparatus is used for pyrolysis oil shale, horizontal calcination rotary kiln is used for burning the pyrolysis sediment, thus, oil shale can obtain abundant heating, the pyrolysis sediment is also because not in the pyrolysis chamber, need not consider the influence of oil gas, can be fully burnt and eliminate the organic matter that contains, the waste gas environmental protection that produces is pollution-free;

the oil shale is placed into a horizontal pyrolysis rotary kiln for heating pyrolysis, and the oil shale can move along the inner wall of a pyrolysis chamber to be fully heated, so that oil gas in the oil shale can be completely extracted, the ore utilization rate is high, and the output of shale oil and gas is improved; the pyrolysis slag can gradually move along the inner wall of the calcining chamber in the horizontal heating kiln and cannot directly move to the tail end of the calcining chamber, so that the pyrolysis slag can be fully heated, and organic matters contained in the pyrolysis slag are eliminated;

the gas collecting tower circulates with the pyrolysis chamber, and the draught fan can take out the oil gas in the pyrolysis chamber from the extraction opening to keep the negative pressure environment of pyrolysis chamber, avoid oxygen to enter into the pyrolysis chamber from the extraction opening, thereby the condition of explosion can not appear, and the production process is comparatively safe.

Furthermore, the horizontal heating kiln is in running fit with the horizontal pyrolysis rotary kiln, and a plurality of burners and a plurality of gas inlets are arranged on the horizontal heating kiln at intervals along the length direction. There is relative rotation between horizontal heating kiln and the horizontal pyrolysis rotary kiln, it is even to enable horizontal pyrolysis rotary kiln to be heated, the difference in temperature can not appear in all oil shale in the pyrolysis chamber, it is even to be heated, can be carried oil by better heating, be equipped with a plurality of gas entries on the horizontal heating kiln, the combustor is used for lighting the gas that enters into in the gas entry, different positions in can making the horizontal heating kiln all have gas combustion to the pyrolysis chamber heating, can make the temperature in the pyrolysis chamber keep even, oil shale can be better be heated and draw shale oil.

Furthermore, a first driving device for controlling the horizontal pyrolysis rotary kiln to rotate is arranged at the bottom of the horizontal pyrolysis rotary kiln, and a first material guide plate is arranged in the pyrolysis chamber and distributed along the inner wall of the pyrolysis chamber in a vortex shape. The first driving device at the bottom of the horizontal pyrolysis rotary kiln can drive the horizontal pyrolysis rotary kiln to rotate, the first guide plate distributed in a vortex shape can guide the oil shale to move, so that the oil shale is fried in the pyrolysis chamber and rolled uniformly, the oil shale is limited, the oil shale can move gradually along the inner wall of the pyrolysis chamber, the oil shale can not stagnate or directly reach the tail end of the pyrolysis chamber, and oil gas in the oil shale can be completely extracted.

Furthermore, a second driving device for controlling the rotation of the horizontal calcining rotary kiln is arranged at the bottom of the horizontal calcining rotary kiln, and a second material guide plate which is distributed along the inner wall of the calcining chamber in a vortex shape is arranged on the inner wall of the calcining chamber. The second drive arrangement can control horizontal rotary kiln that calcines and rotate, make it be heated evenly, pyrolysis slag in the calcining chamber can fully contact with the gas, get rid of organic substance, the second stock guide that the vortex form distributes can guide pyrolysis slag to remove, it is even to make pyrolysis slag stir-fry roll in the calcining chamber and be heated, and carry on spacingly to pyrolysis slag, it moves gradually along the calcining chamber inner wall to enable pyrolysis slag, can make pyrolysis slag and calcining chamber inner wall contact abundant at horizontal rotary kiln rotation in-process that calcines, pyrolysis slag stagnation can not appear or directly reach the terminal condition of calcining chamber, in order to guarantee that pyrolysis slag can be fully burned and form and calcine the shale slag.

Further, the oil shale processing apparatus still includes calcines shale sediment collection device and calcines shale sediment processing apparatus, it is used for collecting the collection sediment chamber of calcining the shale sediment to inject in the shale sediment collection device, it includes the flour mill station and sets up to calcine shale sediment processing apparatus the flour mill station with calcine the transportation unit between the shale sediment collection device. The calcining shale slag after sufficient combustion is collected by the calcining shale slag collecting device and then is convenient for centralized processing, the powder grinding station can process the calcining shale slag to grind the calcining shale slag into building material, the utilization rate of the oil shale is improved, the economic benefit generated by the oil shale is further improved, and the transfer unit is used for transferring the calcining shale slag into the powder grinding station.

Furthermore, one end of the calcining chamber is a pyrolysis slag inlet, the other end of the calcining chamber is a calcined shale slag outlet, the lower end of the collecting chamber is communicated with the pyrolysis slag inlet, and the calcined shale slag outlet is communicated with the slag collecting cavity. In the pyrolysis sediment can directly enter into the calcining chamber from collecting the room, the calcination shale sediment of production through the burning can directly enter into in the collection sediment intracavity from the calcining chamber, and outside pyrolysis sediment or calcination shale sediment can not fall the equipment, has also reduced the thermal loss in the material sediment transportation simultaneously.

Furthermore, the bottom wall of the slag collecting cavity is provided with a slag discharge port, and a slag discharge gate is arranged at the slag discharge port. The calcined shale slag entering the slag collecting cavity can be accumulated on the slag discharge gate and blocked by the slag discharge gate so as not to be moved out from the slag discharge port, the temperature in the calcining chamber can be reduced to be leaked when the slag discharge gate is closed, in addition, the temperature reduction speed of the calcined shale slag can be slowed down, and the heat loss is reduced.

Furthermore, one end of the horizontal pyrolysis rotary kiln is provided with a raw material inlet, the other end of the horizontal pyrolysis rotary kiln is provided with a residual material outlet, the drying preheating chamber is communicated with the raw material inlet, and the collecting chamber is communicated with the residual material outlet. In the oil shale that preheats can directly enter into the pyrolysis chamber, reduces the calorific loss of oil shale in the transfer process, reduces to enter into the indoor oxygen of pyrolysis, and the clout exit linkage collection room can reduce to send out the pyrolysis sediment and the oil gas in-process and enter into the indoor oxygen of pyrolysis from the clout export.

These features and advantages of the present invention will be disclosed in more detail in the following detailed description and the accompanying drawings.

[ description of the drawings ]

The invention will be further explained with reference to the drawings:

fig. 1 is a schematic structural diagram of an oil shale processing device in an embodiment of the present invention;

FIG. 2 is an enlarged schematic view at A in FIG. 1;

FIG. 3 is a schematic structural view of a horizontal pyrolysis rotary kiln according to an embodiment of the present invention;

FIG. 4 is a sectional view of a horizontal pyrolysis rotary kiln according to an embodiment of the present invention;

FIG. 5 is an enlarged schematic view at B of FIG. 1;

FIG. 6 is a schematic structural view of a horizontal calcining rotary kiln in an embodiment of the present invention;

FIG. 7 is a sectional view of a horizontal calcining rotary kiln in the embodiment of the present invention.

Reference numerals:

a drying preheating device 100, a drying preheating chamber 110, a preheating gate 120 and a screw feeder 130;

the horizontal pyrolysis device 200, the horizontal pyrolysis rotary kiln 210, the pyrolysis chamber 211, the raw material inlet 212, the excess material outlet 213, the horizontal heating kiln 220, the heating chamber 2201, the hot air guide plate 2202, the gas inlet 221, the burner 2211, the valve assembly 222, the tail gas discharge port 223 and the first guide plate 230;

the gas collecting tower 300, the collecting chamber 310, the extraction opening 320, the induced draft fan 330 and the slag tap gate 340;

the horizontal calcining rotary kiln 400, the calcining chamber 410, a second material guide plate 411, a pyrolysis slag inlet 420, a calcined shale slag outlet 430, a gas pipe 440 and an exhaust pipe 450;

a first driving device 500, a riding wheel group 510;

a second driving device 600, a supporting device 610;

the device comprises a calcined shale slag collecting device 700, a slag collecting cavity 710, a slag discharge port 720 and a slag discharge gate 730;

the device comprises a calcined shale slag processing device 800, a grinding station 810, a transfer unit 820, a conveyor 821 and a cooling device 822.

[ detailed description ] embodiments

The technical solutions of the embodiments of the present invention are explained and explained below with reference to the drawings of the embodiments of the present invention, but the embodiments described below are only preferred embodiments of the present invention, and not all embodiments. Based on the embodiments in the embodiment, other embodiments obtained by those skilled in the art without any creative work belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, unless otherwise specified, "a plurality" means two or more unless explicitly defined otherwise.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Referring to fig. 1 to 7, the embodiment of the utility model provides an oil shale processing apparatus, include: a drying preheating device 100 having a drying preheating chamber 110 for preheating the oil shale; a horizontal pyrolysis apparatus 200 for pyrolyzing the oil shale; a gas collecting tower 300 having a collecting chamber 310 for collecting oil gas and pyrolysis residue for collecting pyrolysis residue and oil gas; the horizontal calcining rotary kiln 400 is provided with a calcining chamber 410 and is used for calcining pyrolysis slag generated after the oil shale is pyrolyzed; wherein, the horizontal pyrolysis apparatus 200 includes a horizontal pyrolysis rotary kiln 210 and a horizontal heating kiln 220, a pyrolysis chamber 211 communicated with the collection chamber 310 is defined in the horizontal pyrolysis rotary kiln 210, and the horizontal heating kiln 220 is disposed at an outer circumference of the horizontal pyrolysis rotary kiln 210 to transfer heat of the heating chamber 2201 into the pyrolysis chamber 211.

The oil shale is preheated before being pyrolyzed, moisture and partial organic matters are eliminated, the drying and preheating chamber 110 is divided into a drying zone and a preheating zone, the temperature of the drying zone is kept between 100 ℃ and 200 ℃, the temperature of the preheating zone is kept between 200 ℃ and 400 ℃, and the drying and preheating chamber 110 is communicated with the pyrolyzing chamber 211. The gas burner is installed to horizontal pyrolysis device feed end, and the combustor improves pyrolysis chamber feed inlet temperature, can also blow off the granule oil shale that the stoving preheating chamber got into the pyrolysis chamber.

Horizontal pyrolysis device 200 is used for pyrolysis oil shale, draw shale oil and gas, oil shale's pyrolysis temperature is at 400 ℃ -600 ℃, under this temperature, enable the abundant pyrolysis of oil shale, and can not influence the pyrolysis effect because of too high temperature, oil shale is put into horizontal pyrolysis rotary kiln 210 and is heated the pyrolysis, oil shale can remove and obtain the intensive heating along pyrolysis chamber 211 inner wall, thereby can extract the oil gas in the oil shale completely, ore utilization is rateed highly, the output of shale oil and gas has been improved, the gas is not directly let in the pyrolysis chamber 211 and is burnt, thereby the condition of explosion can not appear.

In the above-mentioned, the pyrolysis is that the material is heated and takes place the reaction process of decomposition, and the pyrolysis includes several kinds of reactions, as preferred the utility model discloses in, what actually go on is the dry distillation, and the dry distillation is solid or organic matter heating decomposition's under the isolated air condition reaction process, generates various gas, steam and solid residue, the utility model discloses oil shale pyrolysis needs isolated oxygen in order to avoid oil gas and oxygen to take place the reaction and the condition that the explosion appears, consequently adopts the mode of dry distillation more suitable, and among the dry distillation product, gas includes shale oil steam, and solid residue includes the pyrolysis residue (or dry distillation residue).

The both ends of pyrolysis chamber 211 are raw materials entry 212 and clout export 213 respectively, and in oil shale entered into pyrolysis chamber 211 from raw materials entry 212, the oil shale who accomplishes the pyrolysis became the pyrolysis sediment and discharges from clout export 213, and the height that highly is higher than clout export 213 of raw materials entry 212 can make things convenient for oil shale's removal, can not appear oil shale and pile up the condition in pyrolysis chamber 211 entry position department.

The horizontal calcining rotary kiln 400 is used for treating the pyrolyzed oil shale, the calcining chamber 410 is used for incinerating the pyrolysis slag, fuel gas is introduced into the calcining chamber 410 to be fully contacted with the pyrolysis slag, organic matters contained in the pyrolysis slag are fully decomposed to form pollution-free calcined shale slag, the discharged tail gas is also clean gas, the temperature for incinerating the pyrolysis slag is 800-1500 ℃, at the temperature, the pyrolysis slag is fully calcined to eliminate harmful organic matters contained, and mineral matters contained are fully decomposed and reconstructed to improve the activity and the gelatination.

The calcining chamber 410 has one end with a pyrolysis residue inlet 420 and the other end with a calcined shale residue outlet 430, and the pyrolysis residue inlet 420 is higher than the calcined shale residue outlet 430, so that the pyrolysis residue can be conveniently moved without the occurrence of the condition that the pyrolysis residue is accumulated at the position of the pyrolysis residue inlet 420.

Different from the prior art, the pyrolysis part and the incineration part of the oil shale are performed in two different devices, the horizontal pyrolysis device 200 is used for pyrolyzing the oil shale, and the horizontal calcining rotary kiln 400 is used for incinerating the pyrolysis slag, so that the oil shale can be sufficiently heated, and the pyrolysis slag is not in the pyrolysis chamber 211 and does not need to be considered to influence oil gas.

Wherein, the gas collecting tower 300 is located between the horizontal pyrolysis device 200 and the horizontal calcining rotary kiln 400, the collecting chamber 310 is respectively communicated with the pyrolysis chamber 211 and the calcining chamber 410, the upper end of the collecting chamber 310 is provided with an air exhaust opening 320, the air exhaust opening 320 is provided with an induced draft fan 330 so as to keep the pyrolysis chamber 211 in a negative pressure environment, and oxygen is prevented from entering the pyrolysis chamber 211 from the air exhaust opening 320, so that the explosion situation can not occur, and the production process is safe.

In order to maintain the anaerobic environment of the pyrolysis chamber 211 and reduce the oxygen brought into the pyrolysis chamber 211 in the process that the oil shale enters the pyrolysis chamber 211, a preheating gate 120 for controlling the falling of the oil shale is arranged at the bottom of the drying and preheating chamber 110, a vortex feeder 130 is arranged on the drying and preheating device 100 and the horizontal pyrolysis device 200, the preheating gate 120 is opened to enable the oil shale to reach the vortex feeder 130, the oil shale is sent into the pyrolysis chamber 211 through the vortex feeder 130, so that oxygen brought by the oil shale entering the drying and preheating chamber 110 is reduced, a plurality of slag discharging gates 340 for controlling the pyrolysis slag to fall are arranged in the collection chamber 310, the opening and the closing of each slag discharging gate 340 are separately controlled, so that the high-temperature gas in the calcining chamber 410 is prevented from entering the pyrolyzing chamber 211 when the pyrolyzing slag enters the horizontal calcining rotary kiln 400, so that an oxygen-free environment in the pyrolysis chamber 211 can be maintained to ensure a safe production environment; in addition, the residue outlet 213 is connected with the collection chamber 310, so that oxygen entering the pyrolysis chamber 211 from the residue outlet 213 in the process of sending out the pyrolysis slag and oil gas can be reduced, the pyrolysis slag can directly enter the calcining chamber 410 from the collection chamber 310, and the heat loss of the pyrolysis slag is reduced.

Referring to fig. 2 to 4, in an embodiment of the present invention, a plurality of gas inlets 221 and a plurality of burners 2211 are arranged on the horizontal heating kiln 220 along the length direction at intervals, the plurality of gas inlets 221 can simultaneously introduce gas, the burners 2211 are used for igniting the gas entering the gas inlets 221, so that the gas is combusted at different positions in the heating chamber 2201 to heat the pyrolysis chamber 211, the temperature in the pyrolysis chamber 211 can be kept uniform, and the oil shale can be better heated to extract shale oil.

In order to facilitate temperature control, a valve assembly 222 for controlling the flow of gas is disposed at the plurality of gas inlets 221, and the valve assembly 222 can control the flow of gas into the heating chamber 2201 to facilitate temperature control of the pyrolysis chamber 211.

In order to make horizontal pyrolysis rotary kiln can be heated evenly, refer to fig. 2 and 3, in the utility model discloses a further embodiment, horizontal pyrolysis rotary kiln 210 and horizontal heating kiln 220 normal running fit, the gas combustion produces the heat in horizontal heating kiln 220, horizontal pyrolysis rotary kiln 210 rotates the heat that produces in absorbing heating chamber 2201, horizontal heating kiln 220 does not rotate, so can not influence the process that the gas lets in heating chamber 2201, oil shale also can be along with horizontal pyrolysis rotary kiln 210's rotation and constantly alternate the position, it is more even to be heated, can be by better heating and refine oil gas, heating chamber 2201 inner wall is equipped with the hot-blast stock guide 2202 of multichannel along spiral distribution, the whole circumference of horizontal pyrolysis rotary kiln 210 outer wall of combustion gas that can guide the gas production is encircleed horizontal pyrolysis rotary kiln 210 outer wall heating pyrolysis chamber 211.

The number of the horizontal heating kilns 220 is two, the two horizontal heating kilns are respectively arranged on two sides of the middle area of the horizontal pyrolysis rotary kiln 210, two ends of the horizontal pyrolysis rotary kiln 210 are provided with the riding wheel sets 510 in running fit with the horizontal pyrolysis rotary kiln, the middle part of the horizontal pyrolysis rotary kiln 210 is positioned between the two horizontal heating kilns 220 and is provided with the first driving device 500 for controlling the rotation of the horizontal pyrolysis rotary kiln 210, the riding wheel sets 510 can support the horizontal pyrolysis rotary kiln 210 and keep the rotation guide and balance of the horizontal pyrolysis rotary kiln 210, the first driving device 500 is only responsible for driving the horizontal pyrolysis rotary kiln 210 to rotate, the pressure received is small, the load is small, and the service life is long.

In order to facilitate the movement of the oil shale, the oil shale is prevented from directly moving from the raw material inlet 212 to the residue outlet 213, the first material guide plate 230 is arranged on the inner wall of the pyrolysis chamber 211, the first material guide plate 230 can guide the oil shale to move and limit the oil shale, the oil shale can gradually move along the inner wall of the pyrolysis chamber 211, and the situation that the oil shale stagnates or directly reaches the tail end of the pyrolysis chamber 211 cannot occur.

The first material guide plates 230 are distributed along the inner wall of the pyrolysis chamber 211 in a vortex shape, the first material guide plates 230 distributed in the vortex shape can better control the movement of the oil shale, so that the oil shale is stir-fried in the pyrolysis chamber 211 and uniformly heated, and the oil shale can be fully contacted with the inner wall of the pyrolysis chamber 211 in the rotation process of the horizontal pyrolysis rotary kiln 210, so as to ensure that oil gas in the oil shale is completely extracted.

In order to make the pyrolysis slag in the horizontal calcining rotary kiln be heated uniformly, referring to fig. 2, 5 and 6, in another embodiment of the present invention, the bottom of the horizontal calcining rotary kiln 400 is provided with a second driving device 600 for controlling the rotation of the horizontal calcining rotary kiln 400, the second driving device 600 can control the rotation of the horizontal calcining rotary kiln 400, so that the horizontal calcining rotary kiln 400 is heated uniformly, and the pyrolysis slag in the calcining chamber 410 can be fully contacted with the gas to remove the organic substances.

The second driving means 600 is not enough to support the horizontal type calcining rotary kiln 400, the supporting means 610 are further provided at both ends of the horizontal type calcining rotary kiln 400, the horizontal type calcining rotary kiln 400 is rotatably fitted with the supporting means 610, and the pressure of the horizontal type calcining rotary kiln 400 on the second driving means 600 can be reduced by the supporting means 610, so that the rotation is not affected by the weight thereof.

In order to facilitate the movement of the pyrolysis slag, the pyrolysis slag is prevented from directly moving from the pyrolysis slag inlet 420 to the calcined shale slag outlet 430, the inner wall of the calcining chamber 410 is provided with the second guide plate 411 which is distributed along the inner wall of the calcining chamber 410 in a vortex shape, the second guide plate 411 which is distributed in the vortex shape can guide the pyrolysis slag to move and limit the pyrolysis slag, the pyrolysis slag can gradually move along the inner wall of the calcining chamber 410, the pyrolysis slag can be fully contacted with the inner wall of the calcining chamber 410 in the rotation process of the horizontal calcining rotary kiln 400, and the situation that the pyrolysis slag stagnates or directly reaches the tail end of the calcining chamber 410 can not occur, so that the pyrolysis slag can be fully burnt to form the calcined shale slag.

As the calcination continues, the pyrolysis slag is gradually sintered under the action of high temperature, and at this time, the second material guiding plate 411 cannot continue to play a role of guiding flow, but may affect the movement of the pyrolysis slag in the calcination chamber 410, and for this reason, the second material guiding plate 411 is only distributed on the inner wall of the front half of the calcination chamber 410.

Referring to fig. 5, in an embodiment of the present invention, the oil shale pyrolysis slag processing system further includes a calcined shale slag collecting device 700 disposed at the end of the horizontal calcining rotary kiln 400 for collecting calcined shale slag, the calcined shale slag after sufficient combustion is collected by the calcined shale slag collecting device 700 for centralized processing, and the calcined shale slag can enter the calcined shale slag collecting device 700 when being discharged from the calcining chamber 410, so as to avoid heat loss during the transportation process of the calcined shale slag.

The calcined shale slag collecting device 700 is internally provided with a slag collecting cavity 710 for collecting calcined shale slag, the bottom wall of the slag collecting cavity 710 is provided with a slag discharging port 720, a slag discharging gate 730 is arranged at the slag discharging port 720, the calcined shale slag entering the slag collecting cavity 710 can be accumulated on the slag discharging gate 730 and blocked by the slag discharging gate 730 and cannot be moved out of the slag discharging port 720, and the temperature leakage in the calcining chamber 410 can be reduced when the slag discharging gate 730 is closed.

Referring to fig. 5, in an embodiment of the present invention, the oil shale pyrolysis residue processing system further includes a calcined shale residue processing apparatus 800, the calcined shale residue processing apparatus 800 includes a pulverizing station 810 and a transferring unit 820 disposed between the pulverizing station 810 and the calcined shale residue collecting apparatus 700, the pulverizing station 810 can process the calcined shale residue to grind the calcined shale residue into building material, thereby improving utilization rate of the oil shale, further improving economic benefits generated by the oil shale, and the transferring unit 820 is used for transferring the calcined shale residue into the pulverizing station 810.

The transfer unit 820 includes a conveyor 821 and a cooling device 822, the cooling device 822 reduces the temperature of the high-temperature calcined shale slag by circulating water to form gel, and is beneficial to grinding and grinding to prepare a gelled material, and the temperature of the calcined shale slag is collected to be used for preheating the fuel gas introduced into the heating chamber 2201 and the calcining chamber 410.

In order to improve the utilization rate of energy, referring to fig. 2, in an embodiment of the present invention, a tail gas discharge port 223 is further disposed on the horizontal heating kiln 220, and the tail gas discharge port 223 is communicated with the drying and preheating chamber 110, so that high temperature tail gas generated in the heating chamber 2201 can be introduced into the drying and preheating chamber 110, the temperature is increased, the preheating effect is enhanced, it is ensured that the oil shale can be sufficiently heated, the heat of the fuel gas is sufficiently utilized, and the waste of energy is reduced; the upper end of the drying and preheating chamber 110 is an inlet, the lower end of the drying and preheating chamber 110 is communicated with the raw material inlet 212, so that preheated oil shale enters the pyrolysis chamber 211, the oil shale enters the drying and preheating chamber 110 from the upper end of the drying and preheating chamber 110, and is heated by tail gas generated by combustion and the temperature generated by a preheating cavity in the downward falling process, and meanwhile, the tail gas can blow away the bonded oil shale, so that the oil shale is preheated and pyrolyzed.

The horizontal calcining rotary kiln 400 also comprises a gas pipe 440 for introducing gas into the calcining chamber 410 and an exhaust pipe 450 for discharging incineration tail gas, wherein the exhaust pipe 450 is communicated with the drying and preheating chamber 110, discharges the tail gas for dedusting treatment and then discharges the tail gas into the drying and preheating chamber 110, and heats the drying and preheating chamber 110 together with the tail gas discharged from the heating chamber 2201.

Referring to fig. 1 to 7, in another embodiment of the present invention, a method for processing oil shale by using the oil shale processing apparatus is specifically described, the method comprises the following steps:

s10, adjusting the temperature of the drying preheating chamber, keeping the temperature of the drying zone at 100-200 ℃, keeping the temperature of the preheating zone at 200-400 ℃, enabling the oil shale to enter the drying preheating chamber for drying and preheating, drying moisture and eliminating part of organic matters attached to the surface of the oil shale, improving the temperature of the oil shale, improving the pyrolysis efficiency of the oil shale, saving energy consumption, simultaneously introducing fuel gas into the heating chamber for combustion to improve the temperature of the pyrolysis chamber, keeping the temperature of the pyrolysis chamber at 400-600 ℃, introducing tail gas generated by combustion into the drying preheating chamber for improving the temperature of the drying preheating chamber;

s20, opening the preheating gate to enable the oil shale to reach the screw feeder, feeding the oil shale into the pyrolysis chamber through the screw feeder, driving the horizontal pyrolysis rotary kiln to rotate by the first driving device, enabling the oil shale to move along the inner wall of the pyrolysis chamber and be gradually heated, and fully pyrolyzing the oil shale in the moving process to form pyrolysis slag;

s30, the pyrolysis sediment gets into on the first gate of slagging tap in the collecting chamber, oil gas along with the pyrolysis sediment gets into in the collecting chamber is collected, first gate of slagging tap is opened and is made the pyrolysis sediment get into on the second says and goes out the sediment gate, first gate of slagging tap is closed, the follow gate of slagging tap is opened and is made the pyrolysis sediment get into the calcining chamber, here the gas lets in to burn in the calcining chamber simultaneously, make the calcining chamber temperature promote to 800 ℃ -1500 ℃, the pyrolysis sediment is calcined, its organic matter that contains is decomposed, become and calcine the shale sediment, burn the tail gas that produces and let in to dry the preheating chamber through the tail gas pipeline:

s40, the calcined shale slag enters a slag collecting cavity, and after a certain amount of calcined shale slag is collected, a slag discharging gate is opened to discharge the calcined shale slag;

and S50, dropping the calcined shale slag onto a transfer unit, reducing the temperature of the calcined shale slag through a cooling device, preheating fuel gas introduced into a heating chamber and a calcining chamber by using the temperature of the calcined shale slag, conveying the calcined shale slag into a powder grinding station through a conveyor, adding ingredients, and grinding the calcined shale slag into the building material gelled material through the powder grinding station.

The embodiment of the utility model provides a can be applied to products such as oil shale treatment facility, shale oil extraction equipment.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and those skilled in the art should understand that the present invention includes but is not limited to the contents described in the drawings and the above specific embodiments. Any modification which does not depart from the functional and structural principles of the present invention is intended to be included within the scope of the claims.

Claims (8)

1. Oil shale processing apparatus, its characterized in that includes:

the drying preheating device is provided with a drying preheating chamber and is used for drying hot oil shale;

the horizontal pyrolysis device is used for pyrolyzing the oil shale;

the horizontal calcining rotary kiln is provided with a calcining chamber and is used for calcining pyrolysis slag generated after the oil shale is pyrolyzed;

the gas collecting tower is positioned between the horizontal pyrolysis device and the horizontal calcining rotary kiln, is provided with a collecting chamber and is used for collecting pyrolysis slag and oil gas;

wherein, horizontal pyrolysis device includes horizontal pyrolysis rotary kiln and horizontal heating kiln, inject in the horizontal pyrolysis rotary kiln with collect the pyrolysis chamber of room intercommunication, horizontal heating kiln sets up horizontal pyrolysis rotary kiln periphery is in order to incite somebody to action the heat transfer of horizontal heating kiln extremely in the pyrolysis chamber, it is equipped with the extraction opening to collect the room upper end, extraction opening department is equipped with the draught fan so that the pyrolysis chamber keeps negative pressure environment.

2. The oil shale processing apparatus of claim 1, wherein the horizontal heating kiln is rotatably coupled to the horizontal pyrolysis rotary kiln, and the horizontal heating kiln is provided with a plurality of burners and a plurality of gas inlets at intervals along a length direction.

3. The oil shale processing apparatus as claimed in claim 2, wherein a first driving device for controlling rotation of the horizontal pyrolysis rotary kiln is arranged at the bottom of the horizontal pyrolysis rotary kiln, and a first material guide plate is arranged in the pyrolysis chamber and distributed along the inner wall of the pyrolysis chamber in a vortex shape.

4. The oil shale processing apparatus as claimed in claim 2, wherein a second driving device for controlling the rotation of the horizontal calcining rotary kiln is arranged at the bottom of the horizontal calcining rotary kiln, and a second material guide plate distributed along the inner wall of the calcining chamber in a vortex shape is arranged on the inner wall of the calcining chamber.

5. The oil shale processing apparatus of claim 1, further comprising a calcined shale slag collection apparatus and a calcined shale slag processing apparatus, the calcined shale slag collection apparatus defining therein a slag collection chamber for collecting calcined shale slag, the calcined shale slag processing apparatus including a pulverizing station and a transfer unit disposed between the pulverizing station and the calcined shale slag collection apparatus.

6. The oil shale processing apparatus of claim 5, wherein the calcining chamber has a pyrolysis residue inlet at one end and a calcined shale residue outlet at the other end, the lower end of the collecting chamber is communicated with the pyrolysis residue inlet, and the calcined shale residue outlet is communicated with the residue collecting cavity.

7. The oil shale processing apparatus according to claim 5, wherein the slag collecting cavity is provided with a slag discharge port at a bottom wall thereof, and a slag discharge gate is provided at the slag discharge port.

8. The oil shale processing apparatus as claimed in any one of claims 1 to 7, wherein the horizontal pyrolysis rotary kiln is provided with a raw material inlet at one end and a residue outlet at the other end, the drying and preheating chamber is communicated with the raw material inlet, and the collecting chamber is communicated with the residue outlet.

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