Multi-level sand screening device for municipal administration construction
What is Al technical title?
Al technical title is built by PatSnap Al team. It summarizes the technical point description of the patent document.
A screening device, sand technology, applied in the direction of screening, solid separation, grille, etc., can solve the problems of not meeting the construction requirements, poor screening effect of the screen, high labor intensity, etc., and achieve high screening efficiency, ingenious structure, and improved The effect of filter effects
Inactive Publication Date: 2018-01-19
郑州味觉信息技术有限公司
View PDF0 Cites 26 Cited by
Summary
Abstract
Description
Claims
Application Information
AI Technical Summary
This helps you quickly interpret patents by identifying the three key elements:
Problems solved by technology
Method used
Benefits of technology
Problems solved by technology
[0003] In the process of municipal engineering construction, sand is one of the most commonly used building materials. Due to the requirements of municipal construction technical specifications, different construction procedures require sand with different particle sizes, so it is necessary to screen th
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more
Image
Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
Click on the blue label to locate the original text in one second.
Reading with bidirectional positioning of images and text.
Smart Image
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0018] Below in conjunction with specific embodiment, the technical scheme of this patent is described in further detail:
[0019] see Figure 1-3 , a multi-stage sand screening device for municipal construction, comprising a box body 1, a collection basket 20 is fixedly installed at the inner bottom of the box body 1, and an upper sieve plate 18 and an upper sieve plate 18 are respectively slidingly arranged in the collection basket 20 from top to bottom. The lower sieve plate 19, the mesh diameter of the lower sieve plate 19 is smaller than the mesh diameter of the upper sieve plate 18, the upper sieve plate 18 and the lower sieve plate 19 run through the collection basket 20, the right end of the upper sieve plate 18 is connected to the inner wall of the box body 1 and between the lower sieve plate 19 and the inner side wall of the box body 1 are connected with return springs 21; the lower surfaces of the upper sieve plate 18 and the lower sieve plate 19 are respectively pr...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more
PUM
Login to view more
Abstract
The invention discloses a multi-level sand screening device for municipal administration construction. The multi-level sand screening device comprises a box. A collecting basket is fixedly arranged atthe bottom of the inner side of the box. Reset springs are connected between the right end of an upper sieve plate and the inner side wall of the box and between a lower sieve plate and the inner side wall of the box. Sliding rods vertically penetrate extension plates in a sliding manner. Wheels are rotationally arranged at the top ends of the sliding rods. A rotation shaft is provided with a screening barrel. A plurality of comb teeth are arranged on the surface of the rotation shaft at equal intervals. The surface of the screening barrel is of a net-shaped structure. A first driven shaft isprovided with a first fan-shaped gear matched with a first outer gear ring, and a second driven shaft is provided with a second fan-shaped gear matched with a second outer gear ring. The multi-levelsand screening device is reasonable in design, sand sequentially passes through the screening barrel, the upper sieve plate and the lower sieve plate, finally, three-level screening of sand is achieved, and accordingly three kinds of sand different in particle size can be obtained. The comb teeth comb the sand in the screening barrel through rotation of the rotation shaft, the sand loose degree isimproved, the screening effect is improved, and the sand screening efficiency is higher.
Description
technical field [0001] The invention relates to the technical field of municipal construction machinery, in particular to a multistage sand screening device for municipal construction. Background technique [0002] Municipal engineering refers to the construction of municipal facilities. In my country, municipal facilities refer to various buildings, structures, equipment, etc. that are set up within the planning and construction scope of urban areas, towns (townships), and provide residents with paid or unpaid public products and services based on government responsibilities and obligations. The construction of various public infrastructure supporting urban life belongs to the category of municipal engineering, such as common urban roads, bridges, subways, and various pipelines closely related to life: rainwater, sewage, water supply, reclaimed water, electricity, telecommunications, Heat, gas, etc., as well as the construction of squares, gardens, etc., all belong to the ...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more
Application Information
Patent Timeline
Application Date:The date an application was filed.
Publication Date:The date a patent or application was officially published.
First Publication Date:The earliest publication date of a patent with the same application number.
Issue Date:Publication date of the patent grant document.
PCT Entry Date:The Entry date of PCT National Phase.
Estimated Expiry Date:The statutory expiry date of a patent right according to the Patent Law, and it is the longest term of protection that the patent right can achieve without the termination of the patent right due to other reasons(Term extension factor has been taken into account ).
Invalid Date:Actual expiry date is based on effective date or publication date of legal transaction data of invalid patent.
Login to view more 
Login to view more