CN107442207A - A kind of municipal construction river sand screening plant - Google Patents

Abstract

The invention discloses a kind of municipal construction river sand screening plant, including supporting table, the supporting table is provided with heater box, is provided with heater in heater box, heater is provided with heat-conducting plate；Heater box upper level is provided with shell, and two breaker rolls are provided with passage；Arc screening plate is provided with below passage, arc screening plate right-hand member is installed with horizontal sieve plate, and horizontal sieve plate right-hand member is provided with right risers, and right risers upper end level is installed with level board, back-moving spring is arranged with slide bar；Back-moving spring is between sliding sleeve and fixed block；Cam abuts with push pedal left side wall；Clever structure of the present invention, it is reasonable in design, the river sand in shell is dried by heat-conducting plate for heater, breaker roll is broken up to the river sand of whereabouts, avoiding the husky group of caking influences screening effect, and air blower advertises hot blast to the sand of whereabouts to the left, looser while making river sand obtain air-drying, the screening effect of river sand is promoted, screening efficiency is higher.

Description

River sand screening device for municipal construction

technical field

The invention relates to the technical field of municipal construction machinery, in particular to a river sand screening device for municipal construction.

Background technique

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 category of municipal engineering. Municipal engineering research and teaching contents include engineering fluid mechanics, water supply and drainage theory, technology and facilities, urban wastewater treatment and reuse, sludge resource utilization technology, etc.

In the process of municipal engineering construction, river sand is the most commonly used building construction material. Due to the technical requirements of construction technology in the municipal construction process, it is necessary to screen the river sand to remove impurities in the river sand and obtain finer sand. , Most of the existing sand screening methods use manual sand screening, which not only has high labor intensity, but also has poor sand screening effect. Therefore, it is urgent to provide a river sand screening device for municipal construction to achieve fast and efficient sand screening effect.

Contents of the invention

The object of the present invention is to provide a river sand screening device for municipal construction to solve the problems raised in the above background technology.

To achieve the above object, the present invention provides the following technical solutions:

A river sand screening device for municipal construction, comprising a support platform, a heating box is provided on the support platform, and a suction pipe communicating with the outside is provided on the heating box, the inside of the heating box is a hollow structure, and the inside of the heating box A heater is provided, and a heat conduction plate is provided on the heater; a shell is horizontally provided on the upper part of the heating box, and the heat conduction plate is attached to the bottom surface of the shell; a screw conveyor is installed horizontally in the shell, and a The drive motor, the output shaft of the drive motor is connected with the screw conveyor, the upper right side of the housing is provided with a feeding hopper, the lower left side of the housing is provided with a lower hopper, and the supporting platform is vertically provided with a material guide pipe corresponding to the lower hopper, the material guide The tube is located directly below the lower hopper, and there are two crushing rollers in the material guide tube; a blower is hung on the lower right side of the material guide tube through a bracket, and the blowing direction of the blower is horizontal to the left. The end of the air pipe away from the blower extends upwards to the inside of the heating box; the arc-shaped sieve plate is arranged under the material guide pipe, the left vertical plate is arranged at the lower part of the arc-shaped sieve plate, and the right end of the arc-shaped sieve plate is fixedly installed with a horizontal sieve plate, and the horizontal sieve plate The right end is provided with a right vertical plate, the top of the right vertical plate is horizontally fixedly installed with a horizontal plate, and several upper bumps are uniformly arranged on the upper surface of the horizontal plate; There is a sliding sleeve, the sliding sleeve is provided with a sliding rod, the sliding rod is covered with a return spring; the right end of the sliding rod is fixedly installed with a fixed block, and the bottom of the fixed block is provided with a lower There is a collection groove under the curved sieve plate and the horizontal sieve plate, a second limit spring is connected between the left vertical plate and the collection groove, and a first limit spring is connected between the right vertical plate and the collection groove. A position spring; the left end of the slide bar is vertically fixedly mounted with a push plate, and the left side of the push plate is provided with a cam driven by a driving device, and the cam abuts against the left side wall of the push plate.

As an improved solution of the present invention: a third limit spring is connected between the arc-shaped sieve plate and the left side wall of the material guide pipe.

As an improved solution of the present invention: the upper surface of the casing is uniformly provided with several exhaust holes.

As an improved solution of the present invention: the left end of the return spring is fixed on the right end of the sliding sleeve, and the right end of the return spring is fixed on the left side of the fixed block.

As an improved solution of the present invention: the crushing roller is connected with a rotating motor.

As an improved solution of the present invention: the diameter of the lower hopper is smaller than the inner diameter of the material guide pipe.

Compared with prior art, the beneficial effect of the present invention is:

The invention has an ingenious structure and a reasonable design. While the river sand is transported by the screw conveyor, the heater dries the river sand in the shell through the heat conduction plate, which is convenient for the subsequent screening process, and the falling river sand is broken up by the crushing roller. , to avoid the impact of agglomerated sand clusters on the screening effect, the blower blows hot air to the falling sand to the left, so that the river sand is dried and looser, and the river sand slides to the right along the curved sieve plate, extending the movement of the sand to the horizontal sieve The timing of the plate promotes the passage of river sand through the arc-shaped sieve plate; driven by the cam, the arc-shaped sieve plate and the horizontal sieve plate realize oscillation, which in turn promotes the screening effect of river sand, and the screening efficiency is higher.

Description of drawings

Fig. 1 is a structural schematic diagram of the present invention.

FIG. 2 is an enlarged schematic view of part A in FIG. 1 .

Fig. 3 is a schematic diagram of the position of the horizontal plate and the upper bump in the present invention.

In the figure: 1-support platform, 2-down hopper, 3-shell, 4-screw conveyor, 5-vent, 6-feed hopper, 7-drive motor, 8-heat conduction plate, 9-suction pipe , 10-heater, 11-heating box, 12-sliding sleeve, 13-return spring, 14-fixed block, 15-intake pipe, 16-blower, 17-cam, 18-push plate, 19-sliding rod, 20 -horizontal plate, 21-right vertical plate, 22-first limit spring, 23-horizontal sieve plate, 24-collection tank, 25-arc sieve plate, 26-second limit spring, 27-left vertical plate, 28-crushing roller, 29-feed guide pipe, 30-the third limit spring, 31-lower bump, 32-upper bump, 33-hanger.

detailed description

Below in conjunction with specific embodiment, the technical scheme of this patent is described in further detail:

Please refer to Fig. 1-3, a river sand screening device for municipal construction, including a support platform 1, a heating box 11 is provided on the support platform 1, and a suction pipe 9 communicating with the outside is provided on the heating box 11, The inside of the heating box 11 is a hollow structure, the heating box 11 is provided with a heater 10, the heater 10 is provided with a heat conducting plate 8; The lower bottom surface; the horizontal rotation type in the housing 3 is provided with a screw conveyor 4, the right side of the housing 3 is provided with a drive motor 7, the output shaft of the drive motor 7 is connected to the screw conveyor 4, and the upper right side of the housing 3 is provided with a feed hopper 6. There is a lower hopper 2 on the lower left side of the shell 3, and a material guide tube 29 corresponding to the lower hopper 2 is vertically provided on the support platform 1. The material guide tube 29 is located directly below the lower hopper 2. Two crushing rollers 28; the bottom right of the guide pipe 29 is hung with a blower 16 by a bracket, the blowing direction of the blower 16 is horizontal to the left, and an air intake pipe 15 is installed on the air inlet of the blower 16, and the air intake pipe 15 is far away from the end of the blower 16 Extend upwards to the inside of the heating box 11; a curved sieve plate 25 is provided below the material guide pipe 29, a left vertical plate 27 is provided at the bottom of the curved sieve plate 25, and a horizontal sieve plate 23 is fixedly installed on the right end of the curved sieve plate 25. The right end of the horizontal sieve plate 23 is provided with a right vertical plate 21, and the upper end of the right vertical plate 21 is horizontally fixed with a horizontal plate 20, and the upper surface of the horizontal plate 20 is evenly provided with several upper bumps 32; the lower side of the support platform 1 is vertically fixed A hanger 33 is installed, and the lower end of the hanger 33 is horizontally provided with a sliding sleeve 12, and the sliding sleeve 12 is provided with a sliding rod 19, and the sliding rod 19 is provided with a return spring 13; the right end of the sliding rod 19 A fixed block 14 is fixedly installed, and the bottom of the fixed block 14 is provided with a lower bump 31 cooperating with an upper bump 32; a collecting tank 24 is arranged below the arc-shaped sieve plate 25 and the horizontal sieve plate 23, and the left vertical plate 27 The second limit spring 26 is connected with the collection tank 24, and the first limit spring 22 is connected between the right vertical plate 21 and the collection tank 24; the left end of the slide bar 19 is vertically fixed with a push plate 18, and pushes The left side of the plate 18 is provided with a cam 17 driven by a driving device, and the cam 17 abuts against the left side wall of the push plate 18 .

Working principle and using method of the present invention are:

During use, the river sand to be screened is put into the inside of the shell 3 through the feed hopper 6, the drive motor 7 is started to drive the screw conveyor 4 to rotate, and the screw conveyor 4 transports the river sand horizontally to the left, and the river sand is in the process of conveying Among them, the heater 10 transmits heat to the inside of the casing 3 through the heat conduction plate 8 to realize the heating and drying of the river sand. Since the casing 3 is also provided with an exhaust hole 5, the water vapor inside the casing 3 is discharged through the exhaust hole 5; The river sand enters the material guide pipe 29 through the lower hopper 2, and at the same time, the crushing roller 28 rotates under the drive of the rotating motor, and rotates and disperses the river sand, so that the river sand is more dispersed and the sand clusters are prevented from agglomerating phenomenon, which is beneficial to the follow-up screening work; start the blower 16, the air heated by the heater 10 inside the heating box 11 enters in the blower 16 through the air inlet pipe 15, and the blower 16 blows hot air to the left from the river sand falling from the material guide pipe 29, The drying of the river sand is promoted, and its looseness is greatly improved; the river sand falls onto the arc-shaped sieve plate 25 and slides to the right and down along the arc-shaped sieve plate 25, prolonging the time for the sand to move to the horizontal sieve plate 23, improving The screening effect of the curved sieve plate 25 and the horizontal sieve plate 23 on river sand has been improved.

The driving device drives the cam 17 to rotate, and the cam 17 drives the slide bar 19 to reciprocate and slide left and right under the action of the return spring 13 by pushing the push plate 18, thereby realizing the left and right reciprocating movement of the fixed block 14 fixed on the right end of the slide bar 19, and the fixed block 14 lower end The lower bump 31 of the lower bump moves left and right accordingly and slides and rubs against the upper bump 32, thereby realizing the vibration of the horizontal plate 20. The plate 27 vibrates under the action of the first limit spring 22 and the second limit spring 26, thereby promoting river sand to pass through the sieve hole between the arc-shaped sieve plate 25 and the horizontal sieve plate 23, greatly improving the screening efficiency. Efficiency and screening effect; the relatively fine sand obtained after screening falls into the collection tank 24 to be collected.

It will be apparent to those skilled in the art that the invention is not limited to the details of the above-described exemplary embodiments, but that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Accordingly, the embodiments should be regarded in all points of view as exemplary and not restrictive, the scope of the invention being defined by the appended claims rather than the foregoing description, and it is therefore intended that the scope of the invention be defined by the appended claims rather than by the foregoing description. All changes within the meaning and range of equivalents of the elements are embraced in the present invention. Any reference sign in a claim should not be construed as limiting the claim concerned.

In addition, it should be understood that although this specification is described according to implementation modes, not each implementation mode only includes an independent technical solution, and this description in the specification is only for clarity, and those skilled in the art should take the specification as a whole , the technical solutions in the various embodiments can also be properly combined to form other implementations that can be understood by those skilled in the art.

Claims (6)

1. a river sand screening device for municipal construction, comprising a support platform (1), is characterized in that, the support platform (1) is provided with a heating box (11), and the heating box (11) is provided with a Connected suction pipe (9), the inside of the heating box (11) is a hollow structure, the heating box (11) is provided with a heater (10), and the heater (10) is provided with a heat conducting plate (8); The upper part of the heating box (11) is horizontally provided with a casing (3), and the heat conduction plate (8) is attached to the bottom surface of the casing (3); the horizontal rotation of the casing (3) is provided with a screw conveyor (4), and the casing (3) The right side is provided with a driving motor (7), the output shaft of the driving motor (7) is connected with the screw conveyor (4), the upper right side of the housing (3) is provided with a feed hopper (6), and the lower left side of the housing (3) A lower hopper (2) is provided on the side, and a feed pipe (29) corresponding to the lower hopper (2) is vertically provided on the support platform (1), and the feed pipe (29) is located directly below the lower hopper (2). Two crushing rollers (28) are arranged in the feed pipe (29); the lower right side of the feed pipe (29) is hung with a blower (16) by a support, and the blowing direction of the blower (16) is horizontal to the left, and the blower ( The air inlet of 16) is equipped with an air inlet pipe (15), and the end of the air inlet pipe (15) away from the blower (16) extends upwards to the inside of the heating box (11); an arc-shaped sieve plate is arranged below the guide pipe (29) (25), the bottom of the curved sieve plate (25) is provided with a left vertical plate (27), the right end of the curved sieve plate (25) is fixedly equipped with a horizontal sieve plate (23), and the right end of the horizontal sieve plate (23) is provided with a right vertical plate. plate (21), the upper end of the right vertical plate (21) is horizontally fixed with a horizontal plate (20), and the upper surface of the horizontal plate (20) is evenly provided with several upper bumps (32); the lower side of the support platform (1) Hanger (33) is vertically fixedly installed, and the lower end of hanger (33) is horizontally provided with sliding sleeve (12), and sliding type is provided with slide bar (19) in described sliding sleeve (12), and described slide bar (19) ) is provided with a return spring (13) on the upper sleeve; a fixed block (14) is fixedly installed at the right end of the slide bar (19), and the bottom of the fixed block (14) is provided with a lower bump (31) matched with the upper bump (32) ); the arc-shaped sieve plate (25) and the horizontal sieve plate (23) are provided with a collecting tank (24) below, and a second limit spring is connected between the left vertical plate (27) and the collecting tank (24) (26), the first limit spring (22) is connected between the right vertical plate (21) and the collecting tank (24); the left end of the slide bar (19) is vertically fixedly equipped with a push plate (18), and the push plate (18) The left side is provided with a cam (17) driven by the driving device, and the cam (17) abuts against the left side wall of the push plate (18). 2. The river sand screening device for municipal construction according to claim 1, characterized in that, a third limit spring is connected between the arc-shaped sieve plate (25) and the left side wall of the feed pipe (29) (30). 3. The river sand screening device for municipal construction according to claim 1, characterized in that, the upper surface of the housing (3) is uniformly provided with several vent holes (5). 4. the river sand screening device for municipal construction according to claim 1, characterized in that, the left end of the back-moving spring (13) is fixed on the right-hand side of the sliding sleeve (12), and the right-hand side of the back-moving spring (13) is fixed on the fixed block ( 14) Left side. 5. The river sand screening device for municipal construction according to claim 1, characterized in that, the crushing roller (28) is connected with a rotating motor. 6. The river sand screening device for municipal construction according to claim 1, characterized in that, the diameter of the lower hopper (2) is smaller than the inner diameter of the feed pipe (29).