CN213300868U

CN213300868U - Preheater used in process of preparing cement by using wastes

Info

Publication number: CN213300868U
Application number: CN202021819186.0U
Authority: CN
Inventors: 何纪纲; 甘德祥; 武甲祥
Original assignee: China United Cement Luoyang Co ltd
Current assignee: China United Cement Luoyang Co ltd
Priority date: 2020-08-26
Filing date: 2020-08-26
Publication date: 2021-05-28
Anticipated expiration: 2030-08-26

Abstract

The utility model discloses a preheater used in the process of preparing cement by utilizing wastes, which comprises a base, the surface of the base is provided with a preheater main body, the inside of the preheater main body is provided with a first heating zone and a second heating zone, the position of the surface of the base corresponding to the first heating zone is provided with a solar heating structure, the position of the surface of the base corresponding to the second heating zone is provided with an electric heating structure, high-temperature airflow passing through the inside of a kiln body enters along with materials from the position of a feed inlet, raw materials passing through the first heating zone are heated by sunlight reflected by a reflector, raw materials passing through the second heating zone are heated by an induction heating mode, and the combination of multiple heating modes is used, so that the raw materials can be rapidly preheated in a shorter time, the structure is simple, the installation and later-stage maintenance operation are convenient, and meanwhile, the time of the raw materials flowing at a high speed in the, the service life of the preheater is prolonged.

Description

Preheater used in process of preparing cement by using wastes

Technical Field

The utility model belongs to the technical field of the pre-heater technique and specifically relates to an utilize pre-heater that discarded object preparation cement in-process was used.

Background

The preheater is a common device in the cement production process, most of the existing preheaters perform preheating operation on raw materials through residual heat airflow in a kiln body, for example, application number 201920328856X discloses a cement production preheater which comprises a cyclone preheater unit, and a decomposing furnace, a smoke chamber, a rotary kiln and a tertiary air pipe which are sequentially connected, wherein the cyclone preheater unit comprises a primary cyclone preheater, a secondary cyclone preheater, a tertiary cyclone preheater, a quaternary cyclone preheater and a quintuplet cyclone preheater which are sequentially connected; the bottom of the four-stage cyclone preheater is provided with a first discharge pipe communicated to the middle of the decomposing furnace and a second discharge pipe communicated to the bottom of the decomposing furnace, one end of the tertiary air pipe, far away from the rotary kiln, is communicated with the middle of the decomposing furnace, and the discharge pipe of the five-stage cyclone preheater is communicated to the smoke chamber.

SUMMERY OF THE UTILITY MODEL

In order to overcome not enough in the background art, the utility model discloses an utilize pre-heater of discarded object preparation cement in-process usefulness, the utility model discloses a heat that waste heat, sunlight of air current produced and the mode of electrical heating combination heat the operation to the raw for can carry out quick preheating operation to the raw in shorter time, simple structure, the maintenance operation in installation and later stage of being convenient for have shortened the high-speed mobile raw simultaneously and have prolonged the life of pre-heater in the inside time of pre-heater.

In order to realize the utility model aims at, the utility model adopts the following technical scheme:

the utility model provides an utilize waste preparation cement in-process to use preheater, includes the base, the surface mounting of base has the preheater main part, the inside of preheater main part is provided with the first zone of heating and the second zone of heating, the position department that the surface of base corresponds the first zone of heating installs solar heating structure, the position department that the surface of base corresponds the second zone of heating installs electric heating structure.

The top end of the preheater main body is provided with a feeding hole, the bottom end of the preheater main body is provided with a discharging hole, one end of the preheater main body is provided with a motor, an output shaft of the motor penetrates through the preheater main body, extends to the inside of the preheater main body and is connected with a spiral conveying frame, and a crushing roller is arranged on the spiral conveying frame at a position corresponding to the inside of a first heating zone;

the preheater main part is provided with a feed inlet, a first heating area, a second heating area and a discharge outlet from left to right in sequence.

The solar heating structure comprises a reflector, the bottom end of the reflector is installed on the upper surface of the base through a rotating seat, an electric push rod is connected to the surface, away from one side of the preheater main body, of the reflector through a connecting seat, the bottom end of the electric push rod is installed on the upper surface of the base through the connecting seat, and a heat-conducting plate is installed on the preheater main body below the first heating zone.

The electric heating structure comprises a coil and an alternating current power supply, the alternating current power supply is installed on the upper surface of the base, a mounting groove is formed in the position, corresponding to the second heating area, of the preheater main body, the coil is installed inside the mounting groove, and the coil is electrically connected with the alternating current power supply.

Since the technical scheme is used, the utility model discloses following beneficial effect has:

an utilize pre-heater that discarded object preparation cement in-process was used, high temperature air current through the internal portion of kiln gets into along with the position of material from the feed inlet, the raw material through first heating region is advanced the heating by the sunlight of reflector panel reflection, the raw material through the second heating region heats through the induction heating mode, multiple heating methods's combination is used, make can carry out quick preheating operation to the raw material in shorter time, moreover, the steam generator is simple in structure, be convenient for installation and later maintenance operation, the high-speed mobile raw material has been shortened simultaneously in the inside time of pre-heater, the life of pre-heater has been prolonged.

Drawings

Fig. 1 is a schematic perspective view of the present invention;

fig. 2 is a cross-sectional view of the present invention.

1. A base; 2. a preheater main body; 3. a solar heating structure; 4. an electrical heating structure; 5. a carriage; 6. a feed inlet; 7. a discharge port; 8. a motor; 9. a screw conveyor; 10. a first heating zone; 11. a second heating zone; 12. a heat conducting plate; 13. a rotating base; 14. a reflector; 15. a connecting seat; 16. an electric push rod; 17. mounting grooves; 18. a coil; 19. an alternating current power supply; 20. a crushing roller.

Detailed Description

The invention will be explained in more detail by the following examples, which disclose the invention and are intended to protect all technical improvements within the scope of the invention.

Combine the preheater that the utilization discarded object preparation cement in-process used of attached figure 1 and fig. 2, including base 1, the surface mounting of base 1 has preheater main part 2, the inside of preheater main part 2 is provided with first zone of heating 10 and second zone of heating 11, the surface of base 1 is installed solar heating structure 3 corresponding to the position department of first zone of heating 10, the surface of base 1 corresponds the position department of second zone of heating 11 and is installed electric heating structure 4, the inside process from first zone of heating 10 and second zone of heating 11 of raw meal in proper order carries out quick heating operation from this to the raw meal.

When two heat source heating areas on the preheater main body 2 are arranged, a heat insulation material is laid on the surface of the preheater main body 1, so that heat loss on the surface of the main body can be reduced, the heat concentration degree and the heat storage effect in the main body can be improved, and the heat insulation material is the best nano material at present.

Preferably, a feed inlet 6 is formed in the top end of the preheater main body 2, a discharge outlet 7 is formed in the bottom end of the preheater main body 2, a motor 8 is mounted at one end of the preheater main body 2, an output shaft of the motor 8 penetrates through and extends into the preheater main body 2 and is connected with a spiral conveying frame 9, and a crushing roller 20 is mounted on the spiral conveying frame 9 at a position corresponding to the inside of the first heating zone 10; the arrangement of the crushing roller 20 enables the material which enters the preheater main body 2 primarily to be accumulated at the position below the feed inlet 6, the recovered residual heat airflow is blocked by the raw material when passing through the position, but a gap exists between the raw material and the raw material, and the airflow can pass through the gap inside the raw material, so that more raw material can be contacted with the recovered high-temperature airflow simultaneously, the utilization efficiency of the recovered high-temperature airflow is improved, then the raw material moves to the position of the first heating zone 10 under the action of the recovered high-temperature airflow and the spiral conveying frame 9, the first heating zone 10 is heated through the reflector plate 14, so that the inside and the periphery of the first heating zone 10 have higher temperature, the heat loss of the external high-temperature airflow in a heat transfer mode is avoided, and the passing material is less due to the blocking of the crushing roller 20, carry out the heating operation to the raw materials under the common effect of external sunlight heating and inside high temperature air current heating, crushing roller 20's setting can be smashed great cubic in the raw materials, guarantee from this that the raw materials that enters into down in the process is comparatively even, then the raw materials moves to the position department of second zone of heating 11 under the high temperature air current of retrieving and the effect of screw conveyer 9, second zone of heating 11 can not open when first zone of heating 10 has satisfied the demand of heating, reduce the energy consumption from this, open when first zone of heating 10 can not satisfy the heating demand, from this heat the inside raw materials of second zone of heating 11, accomplish the heating operation of raw materials from this.

The preheater main body 2 is provided with a feed inlet 6, a first heating area 10, a second heating area 11 and a discharge outlet 7 from left to right in sequence.

The preferred solar heating structure 3 includes the reflector panel 14, the upper surface at base 1 is installed through roating seat 13 to reflector panel 14 bottom, be connected with electric putter 16 through connecting seat 15 on the face of reflector panel 14 keeping away from preheater main part 2 one side, the upper surface at base 1 is installed through connecting seat 15 to electric putter 16's bottom, install heat-conducting plate 12 on the preheater main part 2 of first zone of heating 10 below, reflect the sunlight to preheater main part 2 through reflector panel 14 on, from this to the outer wall heating of first zone of heating 10, the operation is heated to the inside raw meal that passes through of first zone of heating 10 through the mode of heat transfer.

The preferred electric heating structure 4 comprises a coil 18 and an alternating current power supply 19, wherein the alternating current power supply 19 is installed on the surface of the base 1, an installation groove 17 is formed in the preheater main body 2 at a position corresponding to the second heating zone 11, the coil 18 is installed inside the installation groove 17, the coil 18 is electrically connected with the alternating current power supply 19, and raw materials passing through the second heating zone 11 are heated in an induction heating mode.

The preheater for cement manufacturing process using waste material according to the embodiment is configured such that raw meal is fed from the position of the feed port 6 when it is used, the material primarily fed into the preheater main body 2 is accumulated at the position below the feed port 6 due to the arrangement of the pulverizing rollers 20, the flow of the recovered waste heat gas is blocked by the raw meal when passing through the position, but a gap is formed between the raw meal and the raw meal, and the gas flow can pass through the gap inside the raw meal, so that more raw meal can simultaneously contact with the recovered high temperature gas flow, thereby improving the utilization efficiency of the recovered high temperature gas flow, and then the recovered high temperature gas flow and the raw meal are moved to the position of the first heating zone 10 by the screw conveyor 9, thereby enabling the inside and the periphery of the first heating zone 10 to have higher temperatures due to the heating operation of the first heating zone 10 by the reflector plate 14, the mode heat loss of outside temperature high temperature air current through the heat transfer has been avoided, simultaneously because the material that makes the entering pass through of blocking of crushing roller 20 is less, the heating operation is carried out to the raw meal in the common effect of outside sunlight heating and inside high temperature air current heating, crushing roller 20's setting can smash great cubic in the raw meal, it is comparatively even to guarantee to enter into the raw meal in the process from this, then the raw meal removes to the position department of second zone of heating 11 under the high temperature air current of recovery and the effect of screw conveyer frame 9, second zone of heating 11 can not open when first zone of heating 10 has satisfied the demand of heating, reduce the energy consumption from this, open when first zone of heating 10 can not satisfy the heating demand, from this heat the raw meal of second zone of heating 11, accomplish the heating operation of raw meal from this.

The present invention is not described in detail in the prior art, and although the present invention has been specifically shown and described in connection with the preferred embodiments, the method and the way of specifically implementing the technical solution are numerous, and only the preferred embodiments of the present invention are described above, but those skilled in the art should understand that the present invention can be variously changed in form and detail without departing from the spirit and scope of the present invention defined by the appended claims, and all of them are the protection scope of the present invention.

Claims

1. A preheater used in the process of preparing cement by utilizing wastes comprises a base (1) and is characterized in that: the surface mounting of base (1) has preheater main part (2), the inside of preheater main part (2) is provided with the first zone of heating (10) and the second zone of heating (11), the position department that the surface of base (1) corresponds the first zone of heating (10) installs solar heating structure (3), the position department that the surface of base (1) corresponds the second zone of heating (11) installs electric heating structure (4).

2. A preheater for use in a process of manufacturing cement using wastes as set forth in claim 1, wherein: a feed inlet (6) is formed in the top end of the preheater main body (2), a discharge outlet (7) is formed in the bottom end of the preheater main body (2), a motor (8) is installed at one end of the preheater main body (2), an output shaft of the motor (8) penetrates through and extends into the preheater main body (2) and is connected with a spiral conveying frame (9), and a crushing roller (20) is installed on the spiral conveying frame (9) at a position corresponding to the interior of the first heating area (10);

the preheater main body (2) is sequentially provided with a feed inlet (6), a first heating area (10), a second heating area (11) and a discharge outlet (7) from left to right.

3. A preheater for use in a process of manufacturing cement using wastes as set forth in claim 1, wherein: solar heating structure (3) include reflector panel (14), install the upper surface in base (1) through roating seat (13) reflector panel (14) bottom, be connected with electric putter (16) through connecting seat (15) on the face of preheater main part (2) one side is kept away from in reflector panel (14), the surface at the upper surface connecting seat (15) of base (1) is installed through connecting seat (15) in the bottom of electric putter (16), install heat-conducting plate (12) on preheater main part (2) of the first zone of heating (10) below.

4. A preheater for use in a process of manufacturing cement using wastes as set forth in claim 1, wherein: electric heating structure (4) include coil (18) and alternating current power supply (19), alternating current power supply (19) are installed at the upper surface of base (1), mounting groove (17) have been seted up to the position department that corresponds second zone of heating (11) on preheater main part (2), the inside at mounting groove (17) is installed in coil (18), just coil (18) and alternating current power supply (19) electric connection.