The invention discloses a containing tank special for electrically heating asphalt. The containing tank comprises a box and an asphalt tank arranged in the box, wherein a plurality of sets of electrical heating tube assemblies inserted into the asphalt tank are symmetrically arranged at the front end of the asphalt tank. Due to the fact that the electrical heating tube assemblies are arranged in the asphalt tank, asphalt in the asphalt tank is heated through the electrical heating tube assemblies and the heating temperature is uniform when the asphalt is heated by electrical heating tubes, the asphalt in the asphalt tank is heated uniformly, and fast heating can be achieved through the electrical heating tubes. Meanwhile, because electric energy is used for heating the asphalt, no tail gas is generated in the heating process, and pollution to the environment is avoided; because of the electrical heating mode, it is avoided that combustion mediums needed for heating are carried in the containing tank, and the weight of the containing tank is reduced; because electric energy is used for heating, the containing tank can be heated at any time, and no extra power is needed; therefore, the containing tank special for electrically heating asphalt is convenient to use and low in cost.

Containing tank special for electrically heating asphalt

The invention provides an emulsified asphalt tank for an asphalt spraying paver. The emulsified asphalt tank comprises a tank body (1), a heat-insulation board (9), an outer protection layer (16), a content gauge (2), an exhaust pipe (3), a top oil filler (4), a maintenance hole (8), an oil drain hole (10), heating devices (6 and 7) and an asphalt pump component (14). The asphalt tank is arranged on a common paver, synchronous construction of asphalt spraying and pavement paving is realized, and the requirements of ultra-thin mat coat construction are met.

Emulsified asphalt tank for asphalt spraying paver

A paving machine includes an engine, a material conveying system, a screed system including a plurality of screed heaters, and an emulsion sprayer system. The emulsion sprayer system includes an emulsion tank and one or more emulsion heaters. The machine further includes an engine load sensing system and a control system. The control system being configured to receive information from the engine load sensing system indicative of a load on the engine, and limit the operation of the one or more emulsion heaters when the received information indicates the load on the engine is above a value.

Emulsion heating control for a paving machine

The invention discloses an electric heating rod group which is applied to an emulsified asphalt tank of an asphalt spreading paver to realize heating and thermal insulation functions on an emulsified asphalt material in the tank body. The electric heating rod group comprises a junction box (1), a connection flange (2), an internal thread short steel pipe (3), a temperature switch (4) and a heating rod body (5), wherein the junction box (1) is connected with the connection flange (2) through a bolt; the internal thread short steel pipe (3) is welded at the center of the connection flange (2); the temperature switch (4) is mounted at the center of the heating rod group through the internal thread short steel pipe (3); and the heating rod body (5) is divided into nine round heating rods which are of a U-shaped structure and are uniformly welded on the connection flange (2). The electric heating rod group disclosed by the invention meets the need for the heating power of a large-capacity tank body, and realizes flexible temperature rise by reducing the power of a single heating rod so as to avoid an excessive short-time heat value; and meanwhile, the temperature switch is integrated in the electric heating rod group, and the start/stop of the electric heating rod group can be separately controlled so as to realize an effect on preventing local overheating.

Electric heating rod group for emulsified asphalt tank of asphalt spreading paver

The utility model discloses an electrical heating rod bank which is used in an emulsified asphalt tank of an asphalt distribution paver and used for realizing the heating and heat reservation functions of the emulsified asphalt material in the tank. The electrical heating rod bank comprises a junction box [1], a connecting flange [2], an internal-thread short steel tube [3], a temperature switch [4] and a heating rod body [5], wherein the junction box [1] is connected with the connecting flange [2] through a bolt; the internal-thread short steel tube [3] is welded at the center of the connecting flange [2]; the temperature switch [4] is mounted at the center of the heating rod bank through the internal-thread short steel tube [3]; the heating rod body [5] is divided into nine circular heating rods which are all U-shaped and are evenly welded on the connecting flange [2]. The electrical heating rod bank meets the requirements of the heating power of a large-capacity tank, and also realizes flexible temperature rise by reducing the power of one single heating rod, and consequently, overhigh short-time heat generation quantity can be avoided; in the meantime, the temperature switch is integrated inside the electrical heating rod bank, and is capable of independently controlling the start and stop of the electrical heating rod bank to function in preventing local overheating.

Electrical heating rod bank for emulsified asphalt tank of asphalt distribution paver

The invention discloses a constant-temperature control device and method for an emulsified asphalt tank of an asphalt spraying and paving machine, which are used for achieving functions of heating and heat preservation of an emulsified asphalt material. In the constant-temperature control technology, a temperature sensing and temperature control module is adopted, and the temperature of emulsified asphalt is displayed in real time and the on and off of a heating rod can be automatically controlled by using a method of controlling high voltage with low voltage, so as to guarantee the stability of temperature; the constant-temperature control device comprises a controller, a touch display device, a temperature sensor, a relay, a three-phase alternating current power generator, a circuit breaker, a three-phase alternating current contactor, a knob switch, an indicator lamp, a heating rod group and a temperature switch. Maintaining the emulsified asphalt material at a proper temperature is beneficial to spraying and pavement adhesion, and overhigh temperature enables the emulsified asphalt material to be demulsified and solidified. Therefore, the constant-temperature control technology and device are an important constituent of the asphalt spraying and paving machine, the normal working operation of the machine can be guaranteed, a waste of materials can be prevented, and construction quality and economic benefits can be guaranteed.

Constant-temperature control device and method for emulsified asphalt tank of asphalt spraying and paving machine

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Electric heating rod group for emulsified asphalt tank of asphalt spreading paver

Electrical heating rod bank for emulsified asphalt tank of asphalt distribution paver

Constant-temperature control device and method for emulsified asphalt tank of asphalt spraying and paving machine