CN212645444U - Solid material indirect heat exchange device - Google Patents

Abstract

The utility model provides an indirect heat transfer device of solid material, includes urceolus and inner tube, the urceolus both ends all are connected with import seal box and export seal box through sound sealing device, the urceolus passes through the import seal box with the export seal box cup joints on the inner tube, the inner tube both ends are passed respectively the import seal box with export seal box and outside extension to high temperature material is walked to interior barrel, and low temperature material is walked to outer barrel, and interior outer tube material trend is the following current, and the heat of inner tube high temperature material transmits to the urceolus through interior barrel wall, with the urceolus material heating dehydration.

Description

Solid material indirect heat exchange device

Technical Field

The utility model relates to a material heat exchanger, more specifically say, in particular to indirect heat transfer device of solid material.

Background

At present, a large amount of blocky or powdery bulk materials to be cooled or heated are generated in the industrial production process, the solid materials can be subjected to the next reaction after being cooled, the solid materials are placed and cooled generally, the basic principle of the method is air flow cooling, but the method not only causes a large amount of energy waste, but also easily diffuses the solid materials under the action of air flow to cause environmental pollution, and the operation needs to consume a large amount of time, so that the cooling efficiency is low; for example, in the industries of metallurgy, building materials and the like in China, more than 45 million tons of high-temperature bulk materials are generated every year, the residual heat amount exceeds 1 million tons of standard coal, the technologies of dry quenching, chain loop and the like aiming at massive materials at present are mature, but for solid bulk materials which contain both lump materials and powder, such as a large amount of calcined raw materials, industrial slag, coal generated by gasification reduction and the like in the industry, the particle size coverage range is wide, the yield and the temperature span are large, the cooling difficulty is large, and the efficiency is low.

The heat exchange mode of bulk cargo mainly divide into direct heat transfer and indirect heat transfer, and indirect heat transfer is because heat transfer medium and bulk cargo pass through the heat transfer surface and keep apart, and direct contact has not avoided dust removal, bulk cargo or heat transfer medium to pollute the scheduling problem, uses more extensively. The problems commonly encountered in solid-solid heat exchange are that the heat exchange effect is poor, coking is easy to occur on the wall, so that the formed heat exchange coefficient is low, inert gas is required for heat exchange of high-temperature materials, and otherwise deflagration is easy to occur on volatile matters generated by the heatable materials. Because the flowability of the solid material is poor, the traditional liquid heat exchanger cannot be applied; therefore, how to pass the solid material in the heat exchanger and how to improve the retention time of the solid material in the heat exchanger are problems to be solved urgently by solid medium heat exchange equipment.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an indirect heat transfer device of solid material to solve the problem that proposes among the above-mentioned background art.

In order to solve the technical problem, the utility model discloses a following scheme can be solved:

the utility model provides an indirect heat transfer device of solid material, includes urceolus and inner tube, the urceolus both ends all are connected with import seal box and export seal box through sealing device, the urceolus passes through import seal box with the export seal box cup joints on the inner tube, wherein, the inner tube both ends pass respectively import seal box with export seal box just outwards extend.

From this, the advantage of this scheme lies in, and the high temperature material is walked to the barrel in the during operation, and the outer barrel walks the low temperature material, and inner tube and urceolus material move towards to be the following current to make the heat of inner tube high temperature material or high temperature flue gas transmit to the urceolus through interior barrel wall, with the heating dehydration of urceolus material.

In one embodiment, the sealing device comprises a dynamic and static sealing device and a rotary sealing device.

From this, the advantage of this scheme lies in, can make the inner tube rotate on import seal box and export seal box through sealing device's setting, and then reaches better heat transfer effect.

In one embodiment, one end of the inner cylinder is provided with a first feeding hole of the high-temperature solid material, and the other end of the inner cylinder is provided with a first discharging hole of the high-temperature solid material.

From this, the advantage of this scheme lies in, during operation, material or the flue gas of high temperature get into the inner tube through first feed inlet, then go out through first discharge gate to material or flue gas of high temperature transmit the heat to the urceolus through interior barrel wall when the inner tube flows, and then reach the heat transfer effect with the material heating dehydration in the urceolus.

In one embodiment, the upper end of the inlet seal box is provided with a second feeding hole for the low-temperature solid material, the upper end of the outlet seal box is provided with an air outlet, and the lower end of the outlet seal box is provided with a second discharging hole for the low-temperature solid material.

From this, the advantage of this scheme lies in, the during operation, microthermal material carries out the heat transfer through the second feed inlet and then the urceolus is inside to carry out with the high temperature material or the high temperature flue gas of inner tube, then carries away the material through the second discharge gate, wherein, can produce combustible gas at the heat transfer process, lets in inert gas through the air inlet and prevents the combustible gas burning in the urceolus, discharges away through the gas outlet after.

In one embodiment, a deflector is disposed on an inner wall of the inner barrel.

From this, the advantage of this scheme lies in, and the during operation can go out the material water conservancy diversion in the inner tube through the guide plate, and then realizes the heat transfer.

In one embodiment, the outer surface of the inner cylinder is provided with a helical blade surrounding the inner cylinder, and the second helical blade is fixedly connected with the inner wall of the outer cylinder.

From this, the advantage of this scheme lies in, and during operation, the low temperature material that the second feed inlet got into carries the low temperature material to second discharge gate department through helical blade, carries out the heat transfer with the heat of interior barrel wall transmission in transportation process, reaches the effect of heating dehydration, and helical blade with urceolus inner wall fixed connection for inner tube and urceolus can be synchronous.

In one embodiment, a temperature sensor and a pressure sensor are disposed on the inner barrel.

From this, the advantage of this scheme lies in, and the during operation can know the temperature and the pressure value in the heat exchanger constantly.

In one embodiment, a driving device and a driven device for driving the outer cylinder to rotate are further arranged below the outer cylinder.

From this, the advantage of this scheme lies in, and the during operation can make urceolus and inner tube synchronous rotation through drive arrangement and slave unit, and then can reach better heat transfer.

In one embodiment, the driving device comprises a first gear ring fixed on the outer peripheral surface of the outer cylinder, a first riding wheel meshed with the first gear ring, a transmission gear and a motor.

Therefore, the outer barrel is driven to rotate through the cooperation of the motor, the transmission gear, the first supporting wheel and the first gear ring during working.

In one embodiment, the driven device comprises a second gear ring fixed on the outer peripheral surface of the outer cylinder and a second riding wheel meshed with the second gear ring.

Therefore, the outer barrel can be further driven to rotate and the balance of the outer barrel can be kept through the second gear ring and the second riding wheel during operation.

The utility model discloses beneficial effect as follows:

1. the solid material heat exchanger consists of an inner barrel and an outer barrel, wherein the inner barrel is used for feeding high-temperature materials, the outer barrel is used for feeding low-temperature materials, the materials of the inner barrel and the outer barrel flow in a downstream manner, and the heat of the high-temperature materials of the inner barrel is transferred to the outer barrel through the wall of the inner barrel to heat and dehydrate the materials of the outer barrel.

2. Be provided with the helical blade around the inner tube on the surface through the inner tube, and second helical blade with urceolus inner wall fixed connection, and then the during operation, the low temperature material that the second feed inlet got into carries the low temperature material to second discharge gate department through helical blade, carries out the heat transfer with the heat of interior barrel wall transmission in transportation process, reaches the effect of heating dehydration, and helical blade with urceolus inner wall fixed connection for inner tube and urceolus can synchronous rotation.

Drawings

Fig. 1 is a schematic sectional structural view of the heat exchanger of the present invention.

Fig. 2 is a schematic view of the driving device of the present invention.

Fig. 3 is a schematic view of the driven device of the present invention.

Fig. 4 is a sectional view of the driven device of the present invention.

In the figure: 100. the device comprises an outer cylinder, 110, a driving device, 120, a first gear ring, 130, a first riding wheel, 140, a transmission gear, 150, a motor, 160, a driven device, 170, a second gear ring, 180, a second riding wheel, 200, an inner cylinder, 202, a spiral blade, 210, an inlet seal box, 211, a second feeding hole, 220, a first feeding hole, 250, an outlet seal box, 251, an air outlet, 252, a second discharging hole, 260 and a first discharging hole.

Detailed Description

In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following detailed description will be given with reference to the accompanying drawings and specific embodiments. In the following description, feature details such as specific configurations and components are provided only to help a full understanding of the embodiments of the present invention. Thus, it will be apparent to those skilled in the art that various changes and modifications may be made to the embodiments described herein without departing from the scope and spirit of the invention. In addition, descriptions of well-known functions and constructions are omitted for clarity and conciseness.

It should be appreciated that reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure or characteristic described in connection with the embodiment is included in at least one embodiment of the present invention. Thus, the appearances of the phrases "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

In various embodiments of the present invention, it should be understood that the sequence numbers of the following processes do not mean the execution sequence, and the execution sequence of the processes should be determined by the functions and the internal logic, and should not constitute any limitation to the implementation process of the embodiments of the present invention.

It should be understood that the term "and/or" herein is merely one type of association relationship that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.

In the embodiments provided herein, it should be understood that "B corresponding to a" means that B is associated with a from which B can be determined. It should also be understood that determining B from a does not mean determining B from a alone, but may be determined from a and/or other information.

The utility model provides an indirect heat transfer device of solid material.

As shown in fig. 1 to 4, the solid material heat exchanger is composed of an inner cylinder 200 and an outer cylinder 100, the inner cylinder 200 is filled with high-temperature materials or high-temperature flue gas, the outer cylinder 100 is filled with low-temperature materials, the materials in the inner cylinder 200 and the outer cylinder 100 run in a forward flow, and the heat of the high-temperature materials or the high-temperature flue gas in the inner cylinder 200 is transferred to the outer cylinder 100 through the wall of the inner cylinder 200, so that the materials in the outer cylinder 100 are heated and dehydrated.

Further, all be connected with import seal box 210 and export seal box 250 through sealing device in urceolus 100 both ends, wherein, the second feed inlet 211 of low temperature solid material is seted up to the upper end of import seal box 210, the upper end of export seal box 250 has been seted up gas outlet 251, the lower extreme has been seted up low temperature solid material second discharge gate 252 to microthermal solid material gets into in urceolus 100 through second feed inlet 211 and the indirect heat transfer of high temperature solid material of inner tube 200, and the material of taking the temperature after the heat transfer goes out through second discharge gate 252.

Further, the sealing device comprises a dynamic and static sealing device and a rotary sealing device, wherein the dynamic and static sealing device mainly comprises a gland assembly, an enhanced flexible graphite disc, a sealing outer ring assembly, a sealing inner retainer ring assembly and the like. The gland assembly is formed by assembling and welding a flange, a seamless steel pipe and a pressure ring. The compression ring assembly can meet the technological requirements by adopting common carbon structural steel, and the sealing tightness of the graphite packing can be adjusted by adjusting the length of the pressing cover penetrating into the sealing outer ring.

The reinforced flexible graphite packing overcomes the defects of low tensile strength, poor flexibility, poor rebound resilience, low air tightness and the like of a pure graphite material; but also has good temperature resistance, oxidation resistance, corrosion resistance and better compression performance. Meanwhile, the graphite has excellent characteristics; therefore, the sealing material is used as an important sealing element in the structures of the cracking furnace and the spiral sealing device; the axial flexibility, the radial lubricity and the comprehensive performance of the lubricating oil are also utilized;

the sealing outer ring assembly is formed by assembling and welding a flange, a connecting pipe and a pressure ring, and the sealing inner check ring is formed by welding a steel pipe and a circular ring; the graphite packing is wound between the two and is matched with the three to play a sealing role in the radial direction and the axial direction through friction sealing. The number of winding turns in this structure is 8-12.

Furthermore, the air inlet has still been seted up to the upper end of import seal box 210, just the air inlet with second feed inlet 211 sets up the upper end at import seal box 210 side by side to still need the inert gas protection at solid material in the heat transfer process, prevent that the volatile that can hot material produced from detonating easily, consequently, the air inlet through mouthful seal box 210 dashes into inert gas, prevents that the volatile that can hot material produced from detonating easily, and discharges away through gas outlet 251. Wherein the inert gas is nitrogen or carbon dioxide.

Further, the lower end of the inlet seal box 210 is further provided with an impurity dust outlet for cleaning impurities and dust in the heat exchanger, and the lower end of the outlet seal box 250 is further provided with an access hole.

Further, the outer cylinder 100 is sleeved on the inner cylinder 200 through the inlet seal box 210 and the outlet seal box 250, and two ends of the inner cylinder 200 respectively penetrate through the inlet seal box 210 and the outlet seal box 250 and extend outwards. So that the inner cartridge 200 can rotate within the inlet and outlet seal housings 210 and 250, and the inlet and outlet seal housings 210 and 250 also function to support the inner cartridge 200. In addition, bearings or dynamic and static sealing devices are arranged in the inlet seal box 210 and the outlet seal box 250, so that the inner barrel 200 rotates in the inlet seal box 210 and the outlet seal box 250, and the inner barrel 200 is in sealing connection with the inlet seal box 210 and the outlet seal box 250.

Further, the rear end of the outer tub 100 is connected to the outlet seal box 250 by a dynamic and static seal device, such that the outer tub 100 is communicated with the inlet seal box 210 and the outlet seal box 250, and a closed cavity is formed between the outer tub 100 and the inner tub 200, such that the outer tub 100 can rotate between the inlet seal box 210 and the outlet seal box 250, while the inlet seal box 210 and the outlet seal box 250 remain stationary.

Further, a driving device 110 and a driven device 160 for driving the outer cylinder 100 to rotate are further disposed below the outer cylinder 100, specifically, the driving device 110 includes a first gear ring 120 fixed on the outer circumferential surface of the outer cylinder 100, a first idler 130 meshed with the first gear ring 120, a transmission gear 140, and a motor 150, wherein the motor 150 drives the transmission gear 140 to rotate, and further drives the first idler 130 to rotate, so as to drive the first gear ring 120 and the outer cylinder to rotate.

Further, the driven device 160 comprises a second gear ring 170 fixed on the outer circumferential surface of the outer cylinder 100 and a second idler 180 engaged with the second gear ring 170, specifically, as shown in fig. 3, at least 4 driven devices 160 are provided, and each two driven devices 160 are symmetrically provided on both sides of the driving device 110, when the driving device 110 drives the outer cylinder 100 to rotate, the second gear ring 170 in the driven device 160 also rotates, so that the second gear ring and the second idler 180 are engaged to rotate, wherein the driven device 160 serves as an auxiliary outer cylinder to rotate and supports the heat exchanger to keep balanced rotation.

Be provided with the guide plate of transported substance material on the inner tube 200 inner wall, wherein, the guide plate is single helical structure and/or double helix structure, arrange and be the guide plate 7 setting of helical structure and/or single helical structure through the slope, the continuous heat transfer that carries out of high temperature solid material in the inner tube 200, transport high temperature solid material to first discharge gate discharge simultaneously, the rotation of inner tube is being cooperated again for high temperature solid material can be more abundant carry out the heat transfer at the in-process that transports through the guide plate.

The outer surface of the inner cylinder 200 is fixedly provided with a second helical blade 202 surrounding the outer surface of the inner cylinder 200, and the second helical blade 202 is welded with the inner wall of the outer cylinder 100, specifically, the second helical blade is fixedly arranged on the outer surface of the inner cylinder 200 and welded with the inner wall of the outer cylinder 100, so that the outer cylinder 100 is driven to rotate by the driving device 110 and the driven device 160, and simultaneously, the inner cylinder 200 also rotates, so that the material at the second feed port 211 is conveyed to the second discharge port 252 by the second helical blade 202.

The inner cylinder 200 is further provided with a temperature sensor and a pressure sensor, so that the temperature and the pressure in the heat exchanger can be known at any time.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims (10)

1. The utility model provides an indirect heat transfer device of solid material, includes urceolus (100) and inner tube (200), its characterized in that: the outer barrel (100) is connected with an inlet seal box (210) and an outlet seal box (250) at two ends through sealing devices, the outer barrel (100) is sleeved on the inner barrel (200) through the inlet seal box (210) and the outlet seal box (250), wherein the two ends of the inner barrel (200) penetrate through the inlet seal box (210) and the outlet seal box (250) respectively and extend outwards.

2. The indirect solid material heat exchange device according to claim 1, wherein: the sealing device comprises a dynamic sealing device, a static sealing device and a rotary sealing device.

3. The indirect solid material heat exchange device according to claim 2, wherein: one end of the inner barrel (200) is provided with a first feed inlet (220) for high-temperature solid materials, and the other end of the inner barrel is provided with a first discharge outlet (260) for high-temperature solid materials.

4. The indirect solid material heat exchange device according to claim 2, wherein: the upper end of the inlet seal box (210) is provided with a second feeding hole (211) for low-temperature solid materials, the upper end of the outlet seal box (250) is provided with an air outlet (251), and the lower end of the outlet seal box is provided with a second discharging hole (252) for low-temperature solid materials.

5. The indirect solid material heat exchange device according to claim 4, wherein: and a guide plate for conveying materials is arranged on the inner wall of the inner barrel (200).

6. The indirect solid material heat exchange device according to claim 5, wherein: the outer surface of the inner cylinder (200) is provided with a helical blade (202) surrounding the inner cylinder (200), and the second helical blade (202) is fixedly connected with the inner wall of the outer cylinder (100).

7. The indirect solid material heat exchange device according to claim 6, wherein: and a temperature sensor and a pressure sensor are arranged on the inner cylinder (200).

8. The indirect solid material heat exchange device according to claim 1, wherein: and a driving device (110) and a driven device (160) for driving the outer cylinder (100) to rotate are further arranged below the outer cylinder (100).

9. The solid material indirect heat exchange device according to claim 8, wherein: the driving device (110) comprises a first toothed ring (120) fixed on the outer peripheral surface of the outer cylinder (100), a first riding wheel (130) meshed with the first toothed ring (120), a transmission gear (140) and a motor (150).

10. The solid material indirect heat exchange device according to claim 9, wherein: the driven device (160) comprises a second gear ring (170) fixed on the outer peripheral surface of the outer cylinder (100) and a second riding wheel (180) meshed with the second gear ring (170).

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