阅读说明：本技术 一种基于菲涅尔透镜的聚光加热装置 (Fresnel lens-based light-gathering heating device ) 是由 沈楚敬 于 2021-08-09 设计创作，主要内容包括：本发明涉及一种基于菲涅尔透镜的聚光加热装置,包括：-菲涅尔聚光系统,用于对太阳光进行会聚；-菲涅尔聚光系统俯仰机构,用于通过俯仰运动来调节所述菲涅尔聚光系统的角度；-菲涅尔聚光系统极轴翻转机构,用于通过旋转运动来调整所述菲涅尔聚光系统的极轴；-菲涅尔聚光系统横向平移机构,用于通过横向平移运动来改变所述菲涅尔聚光系统的位置；-菲涅尔聚光系统纵向提升机构,用于通过纵向平移运动来改变所述菲涅尔聚光系统的位置；-控制系统,用于控制所述菲涅尔聚光系统俯仰机构、菲涅尔聚光系统极轴翻转机构、菲涅尔聚光系统横向平移机构、菲涅尔聚光系统纵向提升机构的运动,以实现菲涅尔聚光系统对太阳光的最佳会聚。(The invention relates to a condensation heating device based on a Fresnel lens, which comprises: -a fresnel concentrating system for concentrating sunlight; -a fresnel concentrating system pitching mechanism for adjusting the angle of the fresnel concentrating system by a pitching motion; -a fresnel concentrating system polar axis flipping mechanism for adjusting the polar axis of the fresnel concentrating system by a rotational movement; -a fresnel concentrating system lateral translation mechanism for changing the position of the fresnel concentrating system by a lateral translation movement; -a fresnel concentrating system longitudinal lifting mechanism for changing the position of the fresnel concentrating system by a longitudinal translational movement; the control system is used for controlling the Fresnel condensing system pitching mechanism, the Fresnel condensing system polar axis overturning mechanism, the Fresnel condensing system transverse translation mechanism and the Fresnel condensing system longitudinal lifting mechanism to move so as to realize the best concentration of the Fresnel condensing system on sunlight.)

1. A condensation heating device based on a Fresnel lens is characterized by comprising:

-a fresnel concentrating system for concentrating sunlight;

-a fresnel concentrating system pitching mechanism for adjusting the angle of the fresnel concentrating system by a pitching motion;

-a fresnel concentrating system polar axis flipping mechanism for adjusting the polar axis of the fresnel concentrating system by a rotational movement;

-a fresnel concentrating system lateral translation mechanism for changing the position of the fresnel concentrating system by a lateral translation movement;

-a fresnel concentrating system longitudinal lifting mechanism for changing the position of the fresnel concentrating system by a longitudinal translational movement;

the control system is used for controlling the Fresnel condensing system pitching mechanism, the Fresnel condensing system polar axis overturning mechanism, the Fresnel condensing system transverse translation mechanism and the Fresnel condensing system longitudinal lifting mechanism to move so as to realize the best concentration of the Fresnel condensing system on sunlight.

2. The Fresnel-lens-based condensing and heating device according to claim 1, wherein the Fresnel condensing system comprises a Fresnel lens, a condenser and a Fresnel condenser fixing frame.

3. The Fresnel lens based condensing and heating device according to claim 2, characterized in that the Fresnel lens is a circular Fresnel lens; the condenser is formed by butt joint of two round tables according to the die drawing direction and is combined into an integral structure; the circular Fresnel lens and the condenser are fixed through a Fresnel condenser fixing frame.

4. A fresnel lens-based condensing and heating apparatus according to any one of claims 1 to 3, wherein the fresnel condensing system pitching mechanism comprises:

-a fresnel concentrator carriage for supporting the fresnel concentrator system;

-a fresnel concentrator pitch pushrod, capable of linear motion;

a fresnel concentrator pitch push rod link, one end connected to the fresnel concentrator pitch push rod and the other end connected to the fresnel concentrator mount.

5. A fresnel lens-based condensing and heating apparatus according to any one of claims 1 to 3, wherein the fresnel condensing system polar axis inverting mechanism comprises:

-a fresnel concentrator carriage rotation motor connected to the fresnel concentrator carriage so as to be able to bring it into rotation.

6. A fresnel lens-based condensing and heating apparatus according to any one of claims 1-3, wherein the fresnel condensing system lateral translation mechanism comprises:

-a transverse translation guide;

-a lateral translation guide rail slide;

-a transverse translation screw;

-transversely translating the lead screw nut block;

-a transverse translation screw fixation;

-a lateral translation motor.

7. A fresnel lens-based condensing and heating apparatus according to any one of claims 1-3, wherein the fresnel condensing system longitudinal lifting mechanism comprises:

-a body support structure;

-a longitudinal lifting rail;

-a longitudinal lifting screw;

-a longitudinal lifting screw nut seat;

-a longitudinal lifting motor;

-longitudinal lifting rail blocks.

8. A fresnel lens-based spotlight heating device according to any of claims 1-3, characterized by that the control system comprises:

a solar tracking control system for receiving signals from the solar tracking sensor and controlling a fresnel concentrator pitch push rod in the fresnel concentrator pitch mechanism and a fresnel concentrator carriage rotation motor in the fresnel concentrator polar axis tilting mechanism;

the Fresnel condenser focusing control system is used for controlling a transverse translation motor in a transverse translation mechanism in the Fresnel condenser system and a longitudinal lifting motor in a longitudinal lifting mechanism of the Fresnel condenser system.

9. A mobile heating device, comprising:

-a chassis;

-a ground engaging member;

-a power plant;

it is characterized by also comprising:

-a fresnel lens based concentrator heating device according to any of claims 1-8 arranged on the base plate.

10. A sand melt apparatus comprising:

-a gathering device for gathering sand;

-a feeding device for transporting the extracted sand;

it is characterized by also comprising:

-a mobile heating device according to claim 9 or a fresnel lens based spotlight heating device according to any of claims 1-8, the focus of which is located on the sand in the feeding device.

Technical Field

The invention relates to the technical field of solar energy, in particular to a condensation heating device based on a Fresnel lens.

Background

Solar energy can be considered as inexhaustible. At present, the utilization of solar energy includes forms of power generation, heating and the like, and the specific implementation forms of the solar energy are also various. For example, a solar panel can be directly used for generating power to charge electric appliances such as a mobile phone and a street lamp; heating by solar energy is also possible. However, a significant problem exists at present, which is that the energy conversion efficiency is too low, resulting in poor practical application effect.

In the land area of the whole world, the area of the desert occupies about 40 percent. Desert control has already been paid attention to by human beings, and the process of desert control is accelerated globally at present. The harm of desertification to human is not small, and the most expressive is the problem of sand storm, which not only causes environmental pollution, but also more the pollution of drinking water. In contrast, the sand control technology is gradually developed, and one solution is to arrange sand barriers, wherein the common sand barriers are in a grid structure, but the technology is easy to cause secondary pollution to the desert, and mulching films or other mixing agents for manufacturing the sand barriers can be left in the desert. Therefore, for the field of sand prevention and control, a novel efficient and convenient application technology is urgently developed, and particularly, the sand control technology which is free of pollution, low in energy consumption and locally available.

The 3D printing technology has the characteristics of high efficiency, convenience and accuracy, is concerned by various production and manufacturing industries, and printing materials are gradually related to various materials. The application field of the 3D printing technology relates to the field of buildings at present, the 3D printing technology of the buildings mainly combines the 3D printing technology with building construction materials, the building construction efficiency is greatly improved, manpower and material resources are saved by utilizing the technology, the printing materials are generally concrete or cement-based mortar, the building aggregate is generally mixed and configured according to a certain proportion by the materials, and the 3D printing materials belong to special 3D printing materials.

A building 3D printing technique by melting rock and using this mixture as the printing material has been developed and for example CN107044206A discloses a method for 3D printing of buildings, which uses a glass melting furnace as the printing head, which in combination with its 3D positioning mechanism feeds the molten material in a metered manner, which head moves along the 3D coordinates of the wall and deposits the material to form the wall. The glass furnace adopted by the method can melt the rocks only by heating to a high temperature of about 1700 ℃, the heating way has high energy consumption and great difficulty in the operation process, and huge energy loss is undoubtedly caused if large-area building construction is needed.

As described above, the architectural 3D printing technique changes the printing material into a molten state, and is not a common slurry mixture. Most of sand aggregates used in the construction industry nowadays are river sand, and the exploitation of the river sand is exhausted along with the rapid development of urban construction and traffic.

Disclosure of Invention

The invention comprehensively considers the technical content and provides a solar heating device which can efficiently utilize solar energy. Such a heating device can be used in particular for sand stabilization in deserts and can be used in construction engineering.

The invention aims to provide a Fresnel lens-based light-gathering heating device for carrying out sand prevention and control construction engineering or other construction engineering in desert by utilizing desert sand by combining the technical field of construction mechanical engineering and aiming at the defects in the existing sand prevention and control technology. The invention can realize that the desert sand is taken as a raw material, the energy consumption of the whole technology is supplied by using a solar technology, the surface fusion deposition of the desert sand is completed by using the high-power condensation heating effect of the Fresnel lens, and the whole process does not need any active heating, thereby greatly reducing the energy consumption and the cost of the system. Of course, those skilled in the art will appreciate that the spot heating apparatus of the present invention as set forth below may be applied to any other suitable field.

In order to achieve the purpose, the technical scheme of the invention is as follows:

a condensation heating device based on a Fresnel lens is characterized by comprising:

-a fresnel concentrating system for concentrating sunlight;

-a fresnel concentrating system pitching mechanism for adjusting the angle of the fresnel concentrating system by a pitching motion;

-a fresnel concentrating system polar axis flipping mechanism for adjusting the polar axis of the fresnel concentrating system by a rotational movement;

-a fresnel concentrating system lateral translation mechanism for changing the position of the fresnel concentrating system by a lateral translation movement;

-a fresnel concentrating system longitudinal lifting mechanism for changing the position of the fresnel concentrating system by a longitudinal translational movement;

the control system is used for controlling the Fresnel condensing system pitching mechanism, the Fresnel condensing system polar axis overturning mechanism, the Fresnel condensing system transverse translation mechanism and the Fresnel condensing system longitudinal lifting mechanism to move so as to realize the best concentration of the Fresnel condensing system on sunlight.

Further, the Fresnel light condensing system comprises a Fresnel lens, a condenser and a Fresnel condenser fixing frame.

Further, the Fresnel lens is a circular Fresnel lens; the condenser is formed by butt joint of two round tables according to the die drawing direction and is combined into an integral structure; the circular Fresnel lens and the condenser are fixed through a Fresnel condenser fixing frame.

Further, the fresnel condensing system pitching mechanism comprises:

-a fresnel concentrator carriage for supporting the fresnel concentrator system;

-a fresnel concentrator pitch pushrod, capable of linear motion;

a fresnel concentrator pitch push rod link, one end connected to the fresnel concentrator pitch push rod and the other end connected to the fresnel concentrator mount.

Further, the polar axis turning mechanism of the fresnel condensing system comprises:

-a fresnel concentrator carriage rotation motor connected to the fresnel concentrator carriage so as to be able to bring it into rotation.

Further, the fresnel concentrating system lateral translation mechanism comprises:

-a transverse translation guide;

-a lateral translation guide rail slide;

-a transverse translation screw;

-transversely translating the lead screw nut block;

-a transverse translation screw fixation;

-a lateral translation motor.

Further, the fresnel concentrating system longitudinal lifting mechanism comprises:

-a body support structure;

-a longitudinal lifting rail;

-a longitudinal lifting screw;

-a longitudinal lifting screw nut seat;

-a longitudinal lifting motor;

-longitudinal lifting rail blocks.

Further, the control system includes:

a solar tracking control system for receiving signals from the solar tracking sensor and controlling a fresnel concentrator pitch push rod in the fresnel concentrator pitch mechanism and a fresnel concentrator carriage rotation motor in the fresnel concentrator polar axis tilting mechanism;

the Fresnel condenser focusing control system is used for controlling a transverse translation motor in a transverse translation mechanism in the Fresnel condenser system and a longitudinal lifting motor in a longitudinal lifting mechanism of the Fresnel condenser system.

The invention also proposes a mobile heating device comprising:

-a chassis;

-a ground engaging member;

-a power plant;

-a fresnel lens based spot heating device arranged on the chassis.

The invention also provides a sand melting device, comprising:

-a gathering device for gathering sand;

-a feeding device for transporting the extracted sand;

-a mobile heating device or a fresnel lens based spot heating device, the focal point of which is located on the sand in the feeding device.

The invention has the beneficial effects that: the energy flow is increased by utilizing the high-power condensation principle of the Fresnel condenser to realize effective heating. When the light-gathering heating device is applied to desert control, desert sand can be melted, the main component of the desert sand is quartz, the impurity content is low, particularly the moisture content is very low, most of the desert sand is fine sand or quicksand, and the quartz particles are smaller, so that the desert sand is more convenient to melt. In desert, because of the lack of vegetation, the solar radiation quantity is higher than that of other places, a large-area photovoltaic power generation base is already paved in many desert areas in China at present, when a solar power generation project is built, the paved position needs to be subjected to sand fixing treatment, and then the sand fixing technology for taking sand on site can be realized; in the sand fixing process, a method of not melting through sand can be adopted, and the adhesion among sand blocks can be realized only by melting the surface of the sand; if the construction time needs to be accelerated, the online construction work of a plurality of devices can be used; the heating source of the desert sand adopts passive heating, so the invention can greatly reduce the energy consumption, and is a non-pollution, high-efficiency and convenient sand prevention and control technology.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts. The accompanying drawings, which are included to provide a further understanding of the invention, are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention.

Fig. 1 is an isometric view of the present invention.

Fig. 2 is a front view of the present invention.

Fig. 3 is a perspective view of the present invention.

Fig. 4 is a schematic diagram of the control system of the present invention.

Fig. 5 is a schematic diagram of the operation of the present invention.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "symmetrical", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. Those skilled in the art will understand the specific meanings of the above terms in the present invention in specific cases.

In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

The condensation and heating fused sand device based on the Fresnel lens mainly comprises a Fresnel condensation system, a Fresnel condensation system pitching mechanism, a Fresnel condensation system polar axis overturning mechanism, a Fresnel condensation system transverse translation mechanism, a Fresnel condensation system longitudinal lifting mechanism, a device omnidirectional moving mechanism, a solar tracking system, a control system and a power supply system. The following detailed description of the various systems is made with reference to the accompanying drawings.

Referring to fig. 1-3, the fresnel condensing system is composed of a circular fresnel lens 2, a condenser 25, and a fresnel condenser fixing frame 1. The outline of the circular Fresnel lens 2 is a square structure, and the light-gathering effective area of the lens is annular and equidistantly combined. As is clear from fig. 2, the light collector 25 is formed by two circular truncated cones butted in the drawing direction to form an integral structure, and the drawing angles and the dimensions of the circular truncated cones are calculated from reasonable data, which are known to those skilled in the art and will not be described in detail herein. Condenser 25 has incident port and exit port, and its profile is the circular port and the centre of a circle of two circular ports is located the same axis, and circular fresnel lens 2 is located condenser 25 directly over, and the centre of a circle of circular fresnel lens 2's cyclic annular spotlight region is passed by the condenser axis, and lens plane and condenser incident port plane keep a certain distance, and circular fresnel lens 2 and condenser 25 pass through fresnel condenser mount 1 fixedly to make the axial distance between fresnel lens 2 and the condenser 25 keep invariable.

As a specific embodiment, the fresnel concentrator fixing frame 1 may be further divided into a fixing frame of the fresnel lens 2 and a fixing frame of the concentrator 25, the outline shape and the size of the two frames both correspond to the fixed components, the two frames are fixedly connected by a steel structure, and the fixing position corresponds to the distance between the fresnel lens 2 and the concentrator 25. A pair of Fresnel fixing frame rotating shafts is further fixed on the Fresnel condenser fixing frame 1, and the positions of the rotating shafts are symmetrical about the Fresnel condenser fixing frame.

Further, referring to fig. 1 and 2, the fresnel concentrator system pitching mechanism is composed of a fresnel concentrator bracket 5, a fresnel concentrator pitching push rod 23, a fresnel concentrator pitching push rod connecting rod 26, and a fresnel concentrator pitching push rod connecting rod fixing hinge 4. The fresnel concentrator bracket 5 is formed by combining steel structures, for example, and has a double-cantilever structure, the fixed end of the beam is connected with the fixed end of the beam in an angle rib plate reinforcing manner, and the movable end of the beam is provided with a through hole which is connected with a rotating shaft in the fresnel concentrator fixing frame 1. Thus, the fresnel concentrator mount 1 can realize pitching rotation between the two cantilever beams of the fresnel concentrator bracket 5 by linear movement of the fresnel concentrator pitching push rod 23. The fixed end of the Fresnel condenser pitching push rod 23 is fixed on the Fresnel condenser bracket 5, the position of the Fresnel condenser pitching push rod is preferably located at the cantilever beam fixed end of the Fresnel condenser bracket 5, and the position is the symmetric center of two cantilever beams; the Fresnel condenser pitching push rod connecting rod fixing hinge 4 is positioned at the right center of the upper edge of the Fresnel lens fixing frame in the Fresnel condenser fixing frame 1. The position is preferably the symmetrical center of the rotating shaft on the Fresnel condenser fixing frame 1; two ends of the Fresnel condenser pitching push rod connecting rod 26 are respectively provided with a through hole, and two ends of the Fresnel condenser pitching push rod connecting rod are respectively connected with the Fresnel condenser pitching push rod 23 and the Fresnel condenser pitching push rod connecting rod fixing hinge 4.

Referring to fig. 1 and 2, the fresnel condenser system polar axis turnover mechanism is composed of a fresnel condenser bracket rotating motor 18 and a fresnel condenser bracket rotating motor fixing frame. The fresnel concentrator carriage rotating motor mount preferably employs a lateral translation mount 6, which will be described below. The transverse translation fixing frame 6 is of a right-angle corner support structure, for example, the transverse translation fixing frame can be formed by connecting and combining a pair of right-angle corner support steel materials with the same size through a cross beam, the transverse translation fixing frame is constructed by a steel structure, the Fresnel condenser bracket rotating motor 18 is fixed on the transverse translation fixing frame 6, the output shaft of the Fresnel condenser bracket rotating motor 18 is connected with the fixed end of the Fresnel condenser bracket 5, and the Fresnel condenser bracket 5 can rotate along with the output shaft of the motor and drive the whole Fresnel condenser system to rotate.

With reference to fig. 1-3, the fresnel condensing system lateral translation mechanism is composed of a lateral translation guide rail 21, a lateral translation guide rail slider 27, a lateral translation screw rod 12, a lateral translation screw rod nut seat 29, a lateral translation screw rod fixing seat 22, a base, and a lateral translation motor 30. The transverse translation rails 21 are in two sets, each fixed to a base, preferably a longitudinal lifting platform 20, to be described below, and parallel to each other. The transverse translation screw rod 12 is fixed on the base through a pair of transverse translation screw rod fixing seats 22, the transverse translation screw rod 12 is located in the middle of two groups of transverse translation guide rails 21 and is equidistant and parallel to the two groups of guide rails, the transverse translation motor 30 is fixed on the base, an output shaft of the transverse translation motor 30 is connected with the transverse translation screw rod 12, the transverse translation screw rod 12 can be controlled to rotate by the transverse translation motor 30, the transverse translation screw rod nut seat 29 is connected with the transverse translation fixing frame 6 and is preferably located at the geometric symmetry position of the transverse translation fixing frame 6, the transverse translation screw rod nut seat 29 is mechanically matched with the transverse translation screw rod 12, the transverse translation guide rail slide blocks 27 are fixed at the bottom of the transverse translation fixing frame 6, four groups of transverse translation guide rail slide blocks are arranged, two groups of transverse translation slide blocks are assembled on each group of transverse translation guide rail, and the distance between the two groups of transverse translation slide blocks is reasonably fixed. Of course, other forms than the lateral translation rail slider 27 may be used, such as a slide rail that cooperates with the lateral translation rail 21, so long as relative sliding movement can occur in cooperation with the lateral translation rail 21.

With reference to fig. 1-3, the fresnel condensing system longitudinal lifting mechanism is composed of a main body supporting portal frame 10, a longitudinal lifting guide rail 7, a longitudinal lifting screw rod 11, a longitudinal lifting screw rod nut seat 17, a longitudinal lifting motor 16, and a longitudinal lifting guide rail slider 19. The subject support portal frame 10 is preferably a symmetrical structure, and is composed of two columns and beams, for example, two parallel equal-sized columns, and is connected by two equal-sized beams, the specific assembled structure is defined as a unit structure, and the subject support portal frame includes two such unit structures, two beams of the two unit structures are respectively connected by a connecting member, and the connection is preferably located at the middle position of the beams of the unit structure. Two groups of longitudinal lifting screw rods 11 are provided, two ends of one group of longitudinal lifting screw rods 11 are respectively connected with two cross beams in the unit structure of the main body supporting portal frame 10, and the connecting position is located in the middle of the cross beams and is parallel to and equidistant from two upright columns. The other set of longitudinal lifting screws 11 is connected to the other unit structure of the body support gantry 10 in the same manner as the aforementioned longitudinal lifting screws. Two longitudinal lifting motors 16 are respectively fixed on the outer side of the main body supporting portal frame 10 and are respectively connected with two groups of longitudinal lifting screw rods. The longitudinal lifting guide rails 7 are provided with four groups, each group is respectively fixed on four upright posts of the main body supporting portal frame and is completely positioned at the inner sides of the four upright posts, each group of longitudinal lifting guide rails is provided with a group of longitudinal lifting guide rail sliding blocks 19, the four groups of longitudinal lifting guide rail sliding blocks are provided totally, the longitudinal lifting guide rail sliding blocks are arranged on two sides of the longitudinal lifting platform, and the mounting distance between the two groups of longitudinal lifting guide rail sliding blocks is consistent with the distance between the assembled longitudinal lifting guide rails.

The omnidirectional moving mechanism of the device consists of a chassis 14, a ground joint part 15 and an omnidirectional moving mechanism power device. The ground engaging members 15 take the form of omni-wheels or tracks, for example, and the omni-directional movement mechanism power plant is mounted on a chassis 14, the upper stationary body of which supports the gantry 10.

Referring to fig. 4, the control system 13 is composed of a solar tracking control system, a fresnel concentrator focusing control system, and a device omnidirectional movement mechanism control system. The solar tracking sensor 3 is connected with a solar tracking control system, and the solar tracking control system receives signals from the solar tracking sensor 3. The solar tracking control system controls a Fresnel condenser pitching push rod in the Fresnel condenser pitching mechanism and a Fresnel condenser bracket rotating motor in the Fresnel condenser polar axis overturning mechanism according to signals from the solar tracking sensor 3. The Fresnel condenser focusing control system is connected with a transverse translation motor in a transverse translation mechanism in the Fresnel condenser system and a longitudinal lifting motor in a longitudinal lifting mechanism of the Fresnel condenser system. The device omnidirectional moving mechanism control system is connected with an omnidirectional moving mechanism power device in the device omnidirectional moving mechanism. The control system 13 may for example be mounted on the upper part of the chassis in the omni-directional movement mechanism of the device, including the electrical components and their wiring required for the control system.

The power supply system is composed of a solar panel 8, a solar panel fixing support 9 and a storage battery 28, the solar panel is fixed on an upper cross beam of a main body supporting portal frame in the Fresnel light condensing system longitudinal lifting mechanism through the solar panel fixing support, and the storage battery is installed at the bottom of a chassis in the device omnidirectional moving mechanism.

Referring to fig. 5, the feeding system is composed of a material collecting system 31 and a feeding system 32, the material collecting system is a sand and stone collecting device in the building engineering, and the feeding system is a sand and stone feeding device in the building engineering, for example, in the form of a conveyor belt.

The structure of the light-gathering and sand-melting device based on the Fresnel lens is described in detail above. According to the structure, the Fresnel condenser fixing frame in the Fresnel condenser system can rotate around the Fresnel condenser fixing frame rotating shaft on the Fresnel condenser fixing frame between the double-cantilever beam gaps of the Fresnel condenser bracket, solar intensity signals collected by the solar tracking sensor are input into the solar tracking control system to be processed, and finally control signals are output to the Fresnel condenser pitching push rod to further realize adjustment of pitching inclination angles, the pitching inclination angles are adjusted according to the change of the whole year, the direction angle adjustment range is small, and the direction angle adjustment range can be defined as X-axis rotation.

The Fresnel condenser bracket rotating motor in the Fresnel condenser system polar axis overturning mechanism is controlled by the solar tracking control system, and can drive the Fresnel condenser bracket in the Fresnel condenser system pitching mechanism to rotate.

The Fresnel focusing system comprises a Fresnel focusing device, a Fresnel focusing device fixing frame, a Fresnel focusing system transverse translation mechanism and a Fresnel focusing system transverse translation mechanism, wherein a transverse translation motor in the Fresnel focusing system transverse translation mechanism is controlled by the Fresnel focusing device focusing system and can drive a transverse translation screw rod to rotate, so that a transverse translation screw rod nut seat is driven to linearly move back and forth and comprises a Fresnel focusing device bracket rotating motor on the transverse translation fixing frame, and the Fresnel focusing system is finally driven to linearly move.

The Fresnel condensing system longitudinal lifting mechanism comprises a Fresnel condenser focusing system, a Fresnel condensing system longitudinal lifting motor, a Fresnel condensing system transverse translation mechanism, a Fresnel condensing system longitudinal lifting motor, a Fresnel condensing system Z-axis focusing motor and a Fresnel condenser focusing system Z-axis focusing motor.

The omnidirectional wheel arranged at the bottom of the chassis in the omnidirectional moving mechanism of the device can realize the omnidirectional movement of the whole working platform on the ground, and in the sand melting process, the light focus can be irradiated on any position on the sand surface through the omnidirectional wheel; the X, Y, Z axial movement changes, so that the real-time focusing heating effect of the device can be realized, the device can realize continuous work, and in order to use different construction environments, the omnidirectional wheels arranged at the bottom of the chassis can be replaced by the crawler belt, thereby improving the construction adaptability of the device.

The feeding system is mainly used for collecting desert sand by the collecting system and finally is used for conveying the desert sand to a region needing construction by the feeding system, a feeding port of the feeding system is matched with a light emergent port of a condenser in the Fresnel condensing system for construction, and the feeding port and the Fresnel condensing system synchronously move to meet continuous supply of sand.

Therefore, the Fresnel focusing device is stable in overall structure, real-time focusing adjustment of the Fresnel condenser can be achieved, the omnidirectional wheel of the chassis can achieve full-area movement of a light focus, the working area range of the technology is widened, continuous working is achieved, and the technical effects of no pollution, high efficiency and energy conservation are achieved.