Sand screening machine for constructional engineering

Abstract

The sand screening machine comprises a fixing frame and a processing barrel, the bottom of the front side of the fixing frame is provided with an opening, the processing barrel is fixedly connected to the top of the fixing frame, the sand screening machine further comprises a centrifugal screening assembly and a conveying screening assembly, the centrifugal screening assembly is arranged in the processing barrel, and the conveying screening assembly is arranged in the processing barrel. The conveying and screening assembly is arranged in the fixing frame. The utility model belongs to the technical field of constructional engineering, and particularly relates to a sand screening machine for constructional engineering. The sand screening machine for constructional engineering solves the problems that fine sand needs to be manually screened for the second time after an inclined rotary drum is used for screening, and working efficiency is low.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of building engineering, especially relates to a sand screening machine for building engineering. BACKGROUND

[0002] The sand screening machine for building engineering is a sand and stone separating mechanical equipment, which is mainly used for separating sand and stone and coal ash in engineering construction, sand field and coal field, and separates coarse and fine materials by using a screening device, and the equipment is simple in structure, economic and applicable, easy to operate, and is widely used in construction sites, sand and stone yards, infrastructure projects, sand mining fields, mixing stations, coal plants, coke plants and metallurgical and mineral industries.

[0003] The sand screening equipment used on the construction site can meet the basic sand screening demand, and in actual use, the sand screening roller is placed obliquely, is stirred under the action of the stirrer, and the coarse sand is manually screened again to obtain fine sand, and the work efficiency is low. UTILITY MODEL CONTENTS

[0004] The utility model solves the technical problem that the oblique roller needs to be manually screened again to obtain fine sand after screening, and the work efficiency is low.

[0005] To solve the above technical problems, the utility model adopts the following technical scheme: a sand screening machine for building engineering, which comprises a fixing frame and a processing cylinder, the bottom of the front side of the fixing frame is provided with an opening, the processing cylinder is fixedly connected to the top of the fixing frame, and the sand screening machine further comprises a centrifugal screening assembly and a conveying and screening assembly, the centrifugal screening assembly is arranged in the processing cylinder, the conveying and screening assembly is arranged in the fixing frame, the centrifugal screening assembly is used for centrifugal screening of sand, and the conveying and screening assembly is used for secondary screening of sand and conveying of sundries.

[0006] Further, the centrifugal screening assembly comprises a supporting column, a screening box, a belt pulley one, a belt pulley two and a transmission belt, wherein:

[0007] The supporting column penetrates through the bottom of the processing cylinder and is rotationally connected thereto, the screening box is fixedly connected to the upper end of the supporting column, a brushless motor is fixedly installed at the bottom of the processing cylinder, the belt pulley one is fixedly connected to the output end of the brushless motor, the belt pulley two is fixedly connected to the lower end of the supporting column, and the transmission belt is connected between the belt pulley one and the belt pulley two.

[0008] Further, the centrifugal screening assembly further comprises a dispersing plate, an inner ring and a limiting block, wherein:

[0009] The dispersing plate is fixedly connected to the inner bottom wall of the screening box, the inner ring is fixedly connected between the inner walls of the processing cylinder, the limiting block is fixedly connected to the outer wall of the screening box and is symmetrically distributed, and the limiting block is arranged in the inner ring.

[0010] Further, the conveying and screening assembly comprises a sieve plate, a protective box, a vibration motor, a servo motor and a propeller blade, wherein:

[0011] The sieve plate is fixedly connected between the inner walls of the fixed frame, the protective box is fixedly connected at the bottom of the sieve plate and linearly arranged along the direction of the bottom of the sieve plate, the vibration motor is fixedly installed inside the protective box, the servo motor is fixedly installed on the outer wall of the fixed frame, and the propeller blade is fixedly connected to the output end of the servo motor.

[0012] Further, the vertical section of the inner ring is in a C-shaped arrangement, a feeding cylinder is threadedly connected to the top of the processing cylinder, a slope plate and a flow guide plate are arranged between the inner walls of the feeding cylinder, the flow guide plate is arranged in a through manner in the middle, the flow guide plate is arranged in a high periphery and low middle manner, and the slope plate is arranged above the flow guide plate.

[0013] Further, the sieve plate is arranged in a high two-side and low middle manner, the middle of the sieve plate is arranged in a circular arc shape, and the sieve plate is arranged in an inclined manner.

[0014] Further, the inner bottom of the processing cylinder is arranged in an inclined manner, and the processing cylinder is provided with a discharge port on one side.

[0015] After the above structure is adopted, the beneficial effects of the present application are as follows:

[0016] (1) The slope plate guides the sand to enter at a reduced speed, and the flow guide plate concentrates the sand on the dispersion plate, the transmission of the belt pulley one, the transmission belt and the belt pulley two can make the screening box rotate at a uniform speed, the sand after dispersion is centrifugally screened, the stability of the screening box during rotation is increased through the inner ring and the limiting block, and the coarse sand or impurities isolated in the screening box can be collected after screening by dismounting the feeding cylinder;

[0017] (2) Through the inclined sieve plate and the shape design, the fine sand obtained by primary screening can be concentrated and conveyed, and the vibration motor is operated during the conveying process to perform secondary screening, not only the fine sand can be screened to the inner bottom of the fixed frame, but also the sand separated from the top of the sieve plate can be conveyed to one side of the fixed frame. BRIEF DESCRIPTION OF DRAWINGS

[0018] The drawings are used to provide a further understanding of the present application, and constitute a part of the specification, together with the embodiments of the present application, to explain the present application, and do not constitute a limitation on the present application.

[0019] Figure 1 The present application provides an overall structure schematic view of a sand screening machine for construction engineering;

[0020] Figure 2 The present application provides a front view of a sand screening machine for construction engineering;

[0021] Figure 3 It is a half sectional view of the sand screening machine for building engineering provided by the utility model;

[0022] Figure 4 It is another planar sectional view of the sand screening machine for building engineering provided by the utility model;

[0023] Figure 5 It is a side view of the sand screening machine for building engineering provided by the utility model.

[0024] In the drawings: 1, fixed frame, 2, processing cylinder, 3, support column, 4, screening box, 5, belt pulley one, 6, belt pulley two, 7, transmission belt, 8, brushless motor, 9, dispersion plate, 10, inner ring, 11, limit block, 12, sieve plate, 13, protection box, 14, vibration motor, 15, servo motor, 16, propeller blade, 17, feeding cylinder, 18, inclined plate, 19, guide plate, 20, discharge port. DETAILED DESCRIPTION

[0025] As Figures 1-2 shown, a sand screening machine for building engineering, it includes fixed frame 1 and processing cylinder 2, fixed frame 1 front side bottom is open setting, processing cylinder 2 fixedly connected at the top of fixed frame 1, still include centrifugal screening assembly and conveying screening assembly, centrifugal screening assembly is located inside processing cylinder 2, conveying screening assembly is located inside fixed frame 1.

[0026] Through centrifugal screening assembly carries out centrifugal screening to sand, through conveying screening assembly carries out secondary screening and the conveying of sundries and exports.

[0027] As Figures 1-5 shown, in order to can carry out the preliminary screening treatment to sand, centrifugal screening assembly includes support column 3, screening box 4, belt pulley one 5, belt pulley two 6, transmission belt 7, dispersion plate 9, inner ring 10 and limit block 11, support column 3 vertically through processing cylinder 2 bottom and with its rotationally connected, screening box 4 is fixedly connected at the upper end of support column 3, processing cylinder 2 bottom fixedly installed with brushless motor 8, belt pulley one 5 is fixedly connected at the output end of brushless motor 8, belt pulley two 6 is fixedly connected at the lower end of support column 3, transmission belt 7 is connected between belt pulley one 5 and belt pulley two 6, dispersion plate 9 is fixedly connected in screening box 4 inner bottom wall, inner ring 10 is fixedly connected between processing cylinder 2 inner wall, limit block 11 is fixedly connected in screening box 4 outer wall, and it is symmetrically distributed, limit block 11 is located in inner ring 10, the vertical section of inner ring 10 is C-shaped setting, processing cylinder 2 top is screwed with feeding cylinder 17, the inner wall between feeding cylinder 17 is equipped with inclined plate 18 and guide plate 19, the middle part of guide plate 19 is through setting, guide plate 19 is set as high around, low in the middle, inclined plate 18 is located above guide plate 19.

[0028] As Figures 1-5 To secondary screen the sand and transport the sundries, the transport and screen assembly comprises a screen plate 12, a protection box 13, a vibration motor 14, a servo motor 15 and a propeller blade 16, the screen plate 12 is fixedly connected between the inner walls of the fixed frame 1, the protection box 13 is fixedly connected at the bottom of the screen plate 12 and linearly arranged along the direction of the bottom of the screen plate 12, the vibration motor 14 is fixedly installed inside the protection box 13, the servo motor 15 is fixedly installed on the outer wall of the fixed frame 1, the propeller blade 16 is fixedly connected to the output end of the servo motor 15, the screen plate 12 is arranged with high sides and a low middle, the middle of the screen plate 12 is arranged in a circular arc shape, and the screen plate 12 is arranged in an inclined manner.

[0029] The bottom of the processing cylinder 2 is arranged in an inclined manner, and one side of the processing cylinder 2 is provided with a discharge port 20.

[0030] In specific use, the sand to be screened is added into the feeding cylinder 17, the sand is guided to slow down into the feeding cylinder 17 by the inclined plate 18 and is concentrated on the dispersion plate 9 by the flow guide plate 19, the brushless motor 8 is turned on, and the transmission of the belt pulley one 5, the transmission belt 7 and the belt pulley two 6 can drive the support column 3 to rotate at a uniform speed to centrifugally screen the dispersed sand, the limiting block 11 rotates inside the inner ring 10 to increase the stability of the rotating screen box 4, the screened sand is discharged through the discharge port 20 and falls onto the screen plate 12, the vibration motor 14 is turned on to perform secondary screening on the sand, and the servo motor 15 is also turned on, the rotation of the propeller blade 16 can concentrate and transport the fine sand obtained through the primary screening, and the fine sand is subjected to secondary screening through the operation of the vibration motor 14 in the transportation process, so that the fine sand can be screened into the bottom of the fixed frame 1 and the sundries separated from the top of the screen plate 12 can be transported to one side of the fixed frame 1, and the above operation improves the screening effect and efficiency of the sand.

[0031] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to the embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents. In general, if a person skilled in the art is inspired by it, without departing from the purpose of the present application, similar structural modes and embodiments are not creatively designed, which should belong to the protection scope of the present application.

Claims

1. A sand screening machine for construction engineering, comprising a fixed frame and a processing drum, wherein the front bottom of the fixed frame is open and the processing drum is fixedly connected to the top of the fixed frame, characterized in that: It also includes a centrifugal screening component and a conveying screening component. The centrifugal screening component is arranged inside the processing cylinder, and the conveying screening component is arranged inside the fixed frame. The centrifugal screening component is used for centrifugal screening of sand, and the conveying screening component is used for secondary screening of sand and transportation of debris.

2. A sand screening machine for construction engineering according to claim 1, characterized in that: The centrifugal screening assembly includes a support column, a screening box, a first pulley, a second pulley and a transmission belt, wherein: The support column vertically passes through the bottom of the processing cylinder and is rotatably connected thereto, the screening box is fixedly connected to the upper end of the support column, a brushless motor is fixedly installed at the bottom of the processing cylinder, the pulley 1 is fixedly connected to the output end of the brushless motor, the pulley 2 is fixedly connected to the lower end of the support column, and the transmission belt is connected between the pulley 1 and the pulley 2.

3. A sand screening machine for construction engineering according to claim 2, characterized in that: The centrifugal screening assembly further comprises a dispersion plate, an inner ring and a limit block, wherein: The dispersion plate is fixedly connected to the bottom wall of the screening box, the inner ring is fixedly connected between the inner walls of the treatment cylinder, the limit blocks are fixedly connected to the outer wall of the screening box and are symmetrically distributed, and the limit blocks are arranged in the inner ring.

4. A sand screening machine for construction engineering according to claim 3, characterized in that: The conveying and screening assembly includes a screen plate, a protective box, a vibration motor, a servo motor and a propeller blade, wherein: The sieve plate is fixedly connected between the inner walls of the fixing frame, the protective box is fixedly connected to the bottom of the sieve plate, and is linearly arranged along the bottom direction of the sieve plate. The vibration motor is fixedly installed inside the protective box, the servo motor is fixedly installed on the outer wall of the fixing frame, and the propeller blade is fixedly connected to the output end of the servo motor.

5. A sand screening machine for construction engineering according to claim 4, characterized in that: The vertical cross-section of the inner ring is C-shaped, the top of the treatment cylinder is threadedly connected to the feed cylinder, an inclined plate and a guide plate are provided between the inner walls of the feed cylinder, the middle part of the guide plate is through-set, the guide plate is high on all sides and low in the middle, and the inclined plate is provided above the guide plate.

6. A sand screening machine for construction engineering according to claim 5, characterized in that: The sieve plate is arranged to be high at both sides and low in the middle, the middle of the sieve plate is arranged to be in an arc shape, and the sieve plate is arranged to be inclined.

7. A sand screening machine for construction engineering according to claim 6, characterized in that: The bottom of the processing cylinder is inclined, and a discharge port is provided on one side of the processing cylinder.

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