Thermochemical mobile heat source vehicle system with feeding and discharging functions and working method thereof

Abstract

The invention discloses a thermochemical mobile heat source vehicle system with feeding and discharging functions and a working method thereof, and the thermochemical mobile heat source vehicle system comprises a water-cooling screw conveyor, a sieve shaker, a crushing bin, a material forming system, a material conveyor, a reaction material bin and a tractor, a total discharge port of the thermochemical reactor is communicated with an inlet of the water-cooling screw conveyor, an outlet of the water-cooling screw conveyor is communicated with an inlet of the vibrating screening machine, a small particle outlet of the vibrating screening machine is communicated with an inlet of the crushing bin, an outlet of the crushing bin is communicated with the material forming system, and the material forming system is communicated with the material conveying system. A large particle outlet of the vibration screening machine is communicated with an inlet of the reaction material bin through the material conveying machine, an outlet of the reaction material bin is communicated with a main feeding port in the thermochemical reactor, and the system and the working method thereof can solve the problems that the gas-solid reaction cannot be carried out and the heat storage and release power is reduced due to the fact that the resistance of a bed layer is increased when a thermochemical heat storage material is broken.

Description

Technical Field

[0001] The present invention belongs to the technical field of thermochemistry, and relates to a thermochemical mobile heat source vehicle system with loading and unloading functions and a working method thereof. Background Art

[0002] Thermochemistry, a key branch of physical chemistry, studies the energy changes (thermal effects) associated with chemical reactions and their relationship to reaction mechanisms and conditions. By quantifying thermodynamic parameters such as reaction heat, enthalpy change, and entropy change, it reveals the energy patterns of chemical reactions and provides theoretical support for industrial production, energy development, and environmental science.

[0003] Publication No. CN216459319U discloses a cellulose ether fine powder pipeline conveying and powder recovery device, including a pulverizer, wherein the discharge port of the pulverizer is connected to the feed port of a screw conveyor through a pipeline, and the discharge port of the screw conveyor is connected to the feed port of a first vibrating screen through a pipeline; the dust outlet of the pulverizer is connected to the feed port of a first cyclone separator through a pipeline, and the discharge port of the first cyclone separator is connected to the feed port of the first vibrating screen through a pipeline; the fine material outlet at the bottom of the first vibrating screen is connected to the feed port of a receiving silo through a pipeline, and a fan is provided on the pipeline between the first vibrating screen and the receiving silo; the floating dust outlet of the first vibrating screen is connected to the feed port of a second cyclone separator through a pipeline, the discharge port of the second cyclone separator is connected to the feed port of a second vibrating screen through a pipeline, and the fine material outlet of the second vibrating screen is connected to the feed port of the receiving silo through a pipeline. During operation, the cellulose ether crushed by the pulverizer enters the screw conveyor and is transported to the first vibrating screen for screening. Dust is generated during the crushing process, which is separated into gas and solid by the first cyclone separator, and the separated solid particles also enter the first vibrating screen. The fine cellulose ether sieved by the first vibrating screen is sucked into the receiving silo by the fan, completing the conveying process of the fine cellulose ether. During this process, when the first vibrating screen sieves the cellulose ether, light materials will generate floating dust. This embodiment uses a second cyclone separator to separate this part of the floating dust. The separated solids are transported to the second vibrating screen through a pipeline for further screening. The sieved fine material finally enters the receiving silo.

[0004] Thermochemical heat storage materials have problems of cracking, breakage and agglomeration during the heat storage and release process, resulting in short cycle life and poor cycle stability of the materials. During the use of heat storage reactors, they face problems such as material breakage leading to increased bed resistance, making gas-solid reactions impossible and a serious decrease in heat storage and release power. Summary of the Invention

[0005] The purpose of the present invention is to overcome the shortcomings of the above-mentioned prior art and provide a thermochemical mobile heat source vehicle system with loading and unloading functions and its working method. The system and its working method can solve the problem that the breakage of thermochemical heat storage materials leads to increased bed resistance, making it impossible to carry out gas-solid reaction and reducing heat storage and release power.

[0006] To achieve the above-mentioned objectives, the present invention discloses a thermochemical mobile heat source vehicle system with loading and unloading functions, comprising a water-cooled screw conveyor, a vibrating screen, a crushing silo, a material forming system, a feeder, a reaction material silo and a tractor. The tractor is provided with a thermochemical reactor, the total discharge port on the thermochemical reactor is connected to the inlet of the water-cooled screw conveyor, the outlet of the water-cooled screw conveyor is connected to the inlet of the vibrating screen, the small particle outlet of the vibrating screen is connected to the inlet of the crushing silo, the outlet of the crushing silo is connected to the material forming system, the large particle outlet of the vibrating screen is connected to the inlet of the reaction material silo via the feeder, and the outlet of the reaction material silo is connected to the total feed port on the thermochemical reactor.

[0007] The further improvement of the thermochemical mobile heat source vehicle system with loading and unloading functions of the present invention is:

[0008] Furthermore, the total discharge port on the thermochemical reactor is connected to the inlet of the water-cooled screw conveyor through a discharge valve.

[0009] Furthermore, the outlet of the reaction material bin is connected to the main feed port of the thermochemical reactor via a discharge valve.

[0010] Furthermore, the thermochemical reactor includes a shell, a plurality of reaction chambers are arranged inside the shell, each reaction chamber is provided with a heat exchange steam tube bundle, an electric heating rod and a steam channel device, the bottom of each reaction chamber is provided with a branch discharge port, the top of each reaction chamber is provided with a branch feed port, the top of the shell is provided with a total feed port, the bottom of the shell is provided with a total discharge port, the total feed port is connected to each branch feed port, and each branch discharge port is connected to the total discharge port.

[0011] Furthermore, the main feed port and each sub-feed port are connected via a material distributor.

[0012] Furthermore, each branch discharge port is connected to the main discharge port via a material collector.

[0013] Furthermore, the electric heating rod is provided with electric heating rod heat exchange fins.

[0014] Furthermore, the heat exchange steam tube bundle is provided with heat exchange fins.

[0015] Furthermore, the steam channel device includes a top cover and two grid plates, wherein the upper ends of the two grid plates are fixed on the top cover, the lower ends of the two grid plates are fixed on the bottom of the reaction chamber, and the front and rear ends of the two grid plates are fixed on the inner wall of the reaction chamber.

[0016] The present invention discloses a working method of a thermochemical mobile heat source vehicle system with loading and unloading functions, comprising the following steps:

[0017] The material output from the thermochemical reactor falls into a water-cooled screw conveyor, is cooled to 20-40°C, and then is sent to a vibrating screen. The vibrating screen screens out the crushed small particles and conveys them to a crushing silo. Finally, they enter the material forming system to re-produce thermochemical granular materials. The large particles screened by the vibrating screen are sent to the reaction material silo for storage through a conveyor. The materials output from the reaction material silo enter the thermochemical reactor.

[0018] The present invention has the following beneficial effects:

[0019] During specific operation, the thermochemical mobile heat source vehicle system with loading and unloading functions and the working method thereof described in the present invention are as follows: the material output from the thermochemical reactor falls into a water-cooled screw conveyor, is cooled to 20-40°C, and is then sent to a vibrating screen. The crushed small particle material is screened out by the vibrating screen and transported to a crushing silo, and finally enters a material forming system to re-produce the thermochemical particle material; the large particle material screened out by the vibrating screen re-enters the thermochemical reactor, preventing small particle material from entering the thermochemical reactor, thereby solving the problem that the bed resistance increases due to the breakage of the thermochemical heat storage material, making it impossible for the gas-solid reaction to proceed and reducing the heat storage and release power. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings, which constitute part of the present invention, are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an undue limitation of the present invention. In the accompanying drawings:

[0021] Figure 1 It is a structural diagram of the present invention;

[0022] Figure 2 is a side view of the thermochemical reactor 1;

[0023] Figure 3 1 is a top view of the thermochemical reactor 1 .

[0024] Among them, 1 is a thermochemical reactor, 2 is a water-cooled screw conveyor, 3 is a vibrating screen, 4 is a crushing silo, 5 is a material forming system, 6 is a feeder, 7 is a reaction material silo, 8 is a total feed port, 9 is a total discharge port, 10 is a chamber, 11 is an electric heating rod, 12 is a steam channel device, 13 is a heat exchange steam tube bundle, 14 is an electric heating rod heat exchange fin, and 15 is a heat exchange steam tube bundle heat exchange fin. DETAILED DESCRIPTION

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0026] In the description of the present invention, it is to be understood that the terms “include” and “comprise” indicate the presence of the described features, wholes, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components and / or collections thereof.

[0027] It should also be understood that the terms used in the present specification are only for the purpose of describing particular embodiments and are not intended to limit the present invention. As used in the present specification and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms unless the context clearly indicates otherwise.

[0028] It should be further understood that the term "and / or" as used in the present specification and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items. For example, A and / or B may represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in the present invention generally indicates that the associated objects are in an "or" relationship.

[0029] It should be understood that although the terms "first," "second," and "third" may be used to describe preset ranges in embodiments of the present invention, these preset ranges should not be limited to these terms. These terms are merely used to distinguish one preset range from another. For example, without departing from the scope of embodiments of the present invention, the first preset range may also be referred to as the second preset range, and similarly, the second preset range may also be referred to as the first preset range.

[0030] The word "if," as used herein, may be interpreted as "at the time of" or "when" or "in response to determining" or "in response to detecting," depending on the context. Similarly, the phrases "if it is determined" or "if (stated condition or event) is detected" may be interpreted as "when it is determined" or "in response to the determination" or "when detecting (stated condition or event)" or "in response to detecting (stated condition or event)," depending on the context.

[0031] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0032] The accompanying drawings illustrate various schematic diagrams of structures according to embodiments disclosed herein. These figures are not drawn to scale; for clarity, some details are exaggerated and some details may be omitted. The shapes of the various regions and layers shown in the figures, as well as their relative sizes and positional relationships, are merely exemplary and may deviate in practice due to manufacturing tolerances or technical limitations. Those skilled in the art may design regions / layers with different shapes, sizes, and relative positions as needed.

[0033] As is well known, thermochemical reactors are core equipment used to implement thermochemical reaction processes in the fields of chemical engineering, energy, and environmental protection. They promote the reaction toward the target product by precisely controlling parameters such as temperature, pressure, and reactant concentration. The following systematic analysis is conducted from the aspects of classification, structural characteristics, application scenarios, technical challenges, and development trends:

[0034] Classification of thermochemical reactors: According to reaction conditions and process requirements, thermochemical reactors can be divided into the following categories:

[0035] Features of a fixed-bed reactor: The catalyst is fixed within the reactor, and the reactants pass through the catalyst bed in the gas or liquid phase. Applications: Suitable for gas-solid phase catalytic reactions, such as ammonia synthesis and methanol synthesis. Advantages: The catalyst has a long life and high reaction efficiency; however, the catalyst must be regenerated or replaced regularly. Features of a fluidized-bed reactor: The solid catalyst particles are fluidized under the action of air or liquid flow, similar to a boiling liquid. Applications: Suitable for gas-solid or liquid-solid phase reactions, such as petroleum catalytic cracking and coal gasification. Advantages: High heat and mass transfer efficiency and sufficient catalyst contact; however, the system is complex and difficult to operate.

[0036] Moving bed reactor features: Catalyst particles move slowly within the reactor, enabling continuous reaction and regeneration. Applications: Suitable for reactions where catalysts are prone to deactivation, such as Fischer-Tropsch synthesis and vinyl chloride synthesis. Advantages: High catalyst utilization and strong reaction continuity; however, the equipment investment is relatively high.

[0037] Characteristics of tubular reactors: Reactants flow within tubes, and temperature control is achieved through heating or cooling of the tube walls. Applications: Suitable for gas-phase or liquid-phase reactions, such as ethylene oxidation to ethylene oxide and petroleum cracking. Advantages: Simple structure and precise temperature control; however, issues such as pressure drop and heat transfer within the tubes must be addressed. Characteristics of tank reactors: Reactants are mixed and reacted within a stirred tank, suitable for batch or continuous operation. Applications: Suitable for liquid-phase reactions, such as esterification and polymerization. Advantages: Flexible operation, suitable for high-variety, small-batch production; however, heat transfer efficiency is relatively low.

[0038] Thermochemical reactors are essential core equipment in modern industry, and their design and application are directly related to reaction efficiency, product quality, and economic benefits. In the future, with the advancement of materials science, catalysis technology, and automated control, thermochemical reactors will continue to evolve towards high efficiency, energy conservation, and environmental protection, providing stronger technical support for the chemical, energy, and environmental protection sectors.

[0039] Example 1

[0040] refer to Figure 1The thermochemical mobile heat source vehicle system with loading and unloading functions of the present invention comprises a water-cooled screw conveyor 2, a vibrating screen 3, a crushing silo 4, a material forming system 5, a feeder 6, a reaction material silo 7 and a tractor. The tractor is provided with a thermochemical reactor 1. The total discharge port 9 on the thermochemical reactor 1 is connected to the inlet of the water-cooled screw conveyor 2. The outlet of the water-cooled screw conveyor 2 is connected to the inlet of the vibrating screen 3. The small particle outlet of the vibrating screen 3 is connected to the inlet of the crushing silo 4. The outlet of the crushing silo 4 is connected to the inlet of the vibrating screen 3. It is connected to the material forming system 5, and the large particle outlet of the vibrating screen 3 is connected to the inlet of the reaction material bin 7 through the feeder 6. The outlet of the reaction material bin 7 is connected to the main feed port 8 on the thermochemical reactor 1. During operation, the crushed small particle material is screened out by the vibrating screen 3 and transported to the crushing bin 4, and finally enters the material forming system 5 to re-make the thermochemical particle material; the large particle material screened by the vibrating screen 3 re-enters the thermochemical reactor 1 to prevent the small particle material from entering the thermochemical reactor 1.

[0041] Example 2

[0042] refer to Figure 1 To further improve this application, this embodiment discloses a thermochemical mobile heat source vehicle system with loading and unloading functions, including a water-cooled screw conveyor 2, a vibrating screen 3, a crushing silo 4, a material forming system 5, a feeder 6, a reaction material silo 7 and a tractor, on which several thermochemical reactors 1 are arranged.

[0043] refer to Figure 2 and Figure 3 Each thermochemical reactor 1 includes a shell, and a plurality of reaction chambers 10 are arranged inside the shell. Each reaction chamber 10 is provided with a heat exchange steam tube bundle 13, an electric heating rod 11 and a steam channel device 12. The bottom of each reaction chamber 10 is provided with a branch discharge port, and the top of each reaction chamber 10 is provided with a branch feed port. The top of the shell is provided with a total feed port 8, and the bottom of the shell is provided with a total discharge port 9. The total feed port 8 is connected to each branch feed port through a material distributor, and each branch discharge port is connected to the total discharge port 9 through a material collector.

[0044] In this embodiment, the electric heating rod 11 is provided with an electric heating rod heat exchange fin 14, the heat exchange steam tube bundle 13 is provided with a heat exchange steam tube bundle heat exchange fin 15, and the steam channel device 12 includes a top cover and two grid plates, wherein the upper ends of the two grid plates are fixed to the top cover, the lower ends of the two grid plates are fixed to the bottom of the reaction chamber 10, and the front and rear ends of the two grid plates are fixed to the inner wall of the reaction chamber 10.

[0045] The total discharge port 9 is connected to the inlet of the water-cooled screw conveyor 2 through a discharge valve, the outlet of the water-cooled screw conveyor 2 is connected to the inlet of the vibrating screen 3, the small particle outlet of the vibrating screen 3 is connected to the inlet of the crushing silo 4, the outlet of the crushing silo 4 is connected to the material forming system 5, the large particle outlet of the vibrating screen 3 is connected to the inlet of the reaction material silo 7 through the feeder 6, and the outlet of the reaction material silo 7 is connected to the total feed port 8 through a discharge valve.

[0046] In this embodiment, a first steam pipe and a second steam pipe are further included, wherein the first steam pipe is connected to each heat exchange steam tube bundle 13 , and the second steam pipe is connected to each steam channel device 12 .

[0047] In the steam channel device 12 , two grid plates are arranged opposite to each other, the particulate material is blocked outside the grid plates, and the steam can penetrate the grid plates to form a steam diffusion channel; the electric heating rod 11 and the heat exchange steam tube bundle 13 are respectively arranged on both sides of the steam channel device 12 .

[0048] Example 3

[0049] This embodiment discloses a working method of a thermochemical mobile heat source vehicle system with loading and unloading functions, wherein the thermochemical mobile heat source vehicle system with loading and unloading functions includes a water-cooled screw conveyor 2, a vibrating screen 3, a crushing silo 4, a material forming system 5, a feeder 6, a reaction material silo 7 and a tractor. The tractor is provided with several thermochemical reactors 1, and the specific connection relationship is shown in Example 2.

[0050] Specifically, the working method of the thermochemical mobile heat source vehicle system with loading and unloading functions includes the following steps:

[0051] In order to prevent the thermochemical material from absorbing moisture, a high-temperature unloading method is adopted, and the unloading temperature is 80-200°C; the discharge valve is opened, and the material is discharged from the thermochemical reactor 1 by gravity, falls into the water-cooled screw conveyor 2, and is sent to the vibrating screen 3 after being cooled to 20-40°C. The crushed material is screened and conveyed to the crushing silo 4, and finally enters the material forming system 5 to re-produce the thermochemical granular material; the large particle material screened by the vibrating screen 3 enters the reaction material silo 7 for storage through the feeder 6, and the reaction material silo 7 is filled with nitrogen for protection to prevent material failure; the discharge valve is opened, and the material in the reaction material silo 7 is sent into the interior of the thermochemical reactor 1, and the uniform filling inside each reaction chamber 10 is achieved through the material distributor. The different feed ports are connected by a mobile thermochemical mobile heat source vehicle to achieve material replacement in each thermochemical reactor 1.

[0052] The thermochemical mobile heat source vehicle includes multiple thermochemical reactors 1. Single or multiple thermochemical reactors 1 are set to operate to achieve output matching between storage and release power and duration. According to the operating resistance characteristics of each thermochemical reactor 1, the docking position of the thermochemical mobile heat source vehicle is adjusted to match the reaction material bin 7 and the water-cooled screw conveyor 2, and the reactor can be flexibly selected to start the loading and unloading screening function.

[0053] It should be noted that the present invention aims to solve the problems in the application process of calcium-based thermochemical granular materials by setting up steam channels, zoning arrangements of granular materials, and modular arrangements of heat storage units, and designing a material exchange system for thermochemical mobile heat source vehicles, so as to solve the problems in the engineering application of thermochemical mobile heat source vehicles.

[0054] Those skilled in the art will readily identify other embodiments of the present invention after considering the specification and disclosure of the invention. This application is intended to cover any variations, uses, or adaptations of the present invention that follow the general principles of the invention and include common knowledge or customary techniques in the art not disclosed herein. The description and examples are to be considered as exemplary only, with the true scope and spirit of the invention being indicated by the following claims.

[0055] It should be understood that the present invention is not limited to the exact construction described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.

[0056] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any way. Any simple modification, change and equivalent structural change made to the above embodiment based on the technical essence of the present invention shall still fall within the scope of protection of the technical solution of the present invention.

Claims

1. A thermochemical mobile heat source vehicle system with loading and unloading functions, characterized in that: The invention comprises a water-cooled screw conveyor (2), a vibrating screen (3), a crushing bin (4), a material forming system (5), a feeder (6), a reaction material bin (7) and a tractor. The tractor is provided with a thermochemical reactor (1). The total discharge port (9) on the thermochemical reactor (1) is connected to the inlet of the water-cooled screw conveyor (2). The outlet of the water-cooled screw conveyor (2) is connected to the inlet of the vibrating screen (3). The small particle outlet of the vibrating screen (3) is connected to the inlet of the crushing bin (4). The outlet of the crushing bin (4) is connected to the material forming system (5). The large particle outlet of the vibrating screen (3) is connected to the inlet of the reaction material bin (7) via the feeder (6). The outlet of the reaction material bin (7) is connected to the total feed port (8) on the thermochemical reactor (1).

2. The thermochemical mobile heat source vehicle system with loading and unloading functions according to claim 1 is characterized in that: The main discharge port (9) on the thermochemical reactor (1) is connected to the inlet of the water-cooling screw conveyor (2) through a discharge valve.

3. The thermochemical mobile heat source vehicle system with loading and unloading functions according to claim 1 is characterized in that: The outlet of the reaction material bin (7) is connected to the main feed port (8) on the thermochemical reactor (1) through a discharge valve.

4. The thermochemical mobile heat source vehicle system with loading and unloading functions according to claim 1 is characterized in that: The thermochemical reactor (1) comprises a shell, wherein a plurality of reaction chambers (10) are arranged inside the shell, each reaction chamber (10) is provided with a heat exchange steam tube bundle (13), an electric heating rod (11) and a steam channel device (12), the bottom of each reaction chamber (10) is provided with a branch discharge port, the top of each reaction chamber (10) is provided with a branch feed port, the top of the shell is provided with a total feed port (8), the bottom of the shell is provided with a total discharge port (9), the total feed port (8) is connected to each branch feed port, and each branch discharge port is connected to the total discharge port (9).

5. The thermochemical mobile heat source vehicle system with loading and unloading functions according to claim 4 is characterized in that: The main feed port (8) is connected to each sub-feed port via a material distributor.

6. The thermochemical mobile heat source vehicle system with loading and unloading functions according to claim 4 is characterized in that: Each sub-discharge port is connected to the main discharge port (9) via a material collector.

7. The thermochemical mobile heat source vehicle system with loading and unloading functions according to claim 4 is characterized in that: The electric heating rod (11) is provided with electric heating rod heat exchange fins (14).

8. The thermochemical mobile heat source vehicle system with loading and unloading functions according to claim 4 is characterized in that: The heat exchange steam tube bundle (13) is provided with heat exchange steam tube bundle heat exchange fins (15).

9. The thermochemical mobile heat source vehicle system with loading and unloading functions according to claim 4 is characterized in that: The steam channel device (12) comprises a top cover and two grid plates, wherein the upper ends of the two grid plates are fixed to the top cover, the lower ends of the two grid plates are fixed to the bottom of the reaction chamber (10), and the front and rear ends of the two grid plates are fixed to the inner wall of the reaction chamber (10).

10. A method for operating the thermochemical mobile heat source vehicle system with loading and unloading functions according to claim 1, characterized in that: The following steps are involved: The material output from the thermochemical reactor (1) falls into a water-cooled screw conveyor (2), is cooled to 20-40°C, and then is sent to a vibrating screen (3). The small particles of material are screened out by the vibrating screen (3) and transported to a crushing silo (4). Finally, the material enters a material forming system (5) to be remade into thermochemical granular material. The large particles of material screened out by the vibrating screen (3) enter a reaction material silo (7) through a conveyor (6) for storage. The material output from the reaction material silo (7) enters the interior of the thermochemical reactor (1).

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